Commit 12/08/2025

.idea/artifacts/EWS_Nanopi_Duo2.xml

@@ -0,0 +1,20 @@
+<component name="ArtifactManager">
+  <artifact name="EWS Nanopi Duo2">
+    <output-path>$PROJECT_DIR$/out/artifacts/EWS_Nanopi_Duo2</output-path>
+    <root id="root">
+      <element id="archive" name="EWS_POC.jar">
+        <element id="directory" name="META-INF">
+          <element id="file-copy" path="$PROJECT_DIR$/meta/nanopi duo2/META-INF/MANIFEST.MF" />
+        </element>
+        <element id="module-output" name="EWS_POC" />
+      </element>
+      <element id="library" level="project" name="jetbrains.kotlinx.coroutines.core" />
+      <element id="library" level="project" name="java.websocket.Java.WebSocket" />
+      <element id="library" level="project" name="KotlinJavaRuntime" />
+      <element id="library" level="project" name="net.java.dev.jna" />
+      <element id="library" level="project" name="io.javalin.bundle" />
+      <element id="dir-copy" path="$PROJECT_DIR$/html" />
+      <element id="dir-copy" path="$PROJECT_DIR$/libs/linux-arm" />
+    </root>
+  </artifact>
+</component>

.idea/deployment.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PublishConfigData" serverName="nanopi gtcdevice01" remoteFilesAllowedToDisappearOnAutoupload="false" confirmBeforeUploading="false">
+    <option name="confirmBeforeUploading" value="false" />
+    <serverData>
+      <paths name="nanopi gtcdevice01">
+        <serverdata>
+          <mappings>
+            <mapping deploy="/EWS_POC" local="$PROJECT_DIR$" web="/" />
+          </mappings>
+        </serverdata>
+      </paths>
+    </serverData>
+  </component>
+</project>

.idea/inspectionProfiles/Project_Default.xml

@@ -4,6 +4,7 @@
     <inspection_tool class="AiaStyle" enabled="false" level="TYPO" enabled_by_default="false" />
     <inspection_tool class="AssignedValueIsNeverRead" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="ClassName" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
+    <inspection_tool class="ConstPropertyName" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
     <inspection_tool class="DuplicatedCode" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
     <inspection_tool class="FunctionName" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
     <inspection_tool class="GrazieInspection" enabled="false" level="GRAMMAR_ERROR" enabled_by_default="false" />

.idea/sshConfigs.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SshConfigs">
+    <configs>
+      <sshConfig authType="PASSWORD" host="100.64.0.1" id="fffd62d4-dc18-4867-bb4a-ffee6db55e4d" port="22" nameFormat="DESCRIPTIVE" username="gtcdev" useOpenSSHConfig="true" />
+    </configs>
+  </component>
+</project>

.idea/webServers.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="WebServers">
+    <option name="servers">
+      <webServer id="72781508-f367-4872-b931-5138bc85e8bd" name="nanopi gtcdevice01">
+        <fileTransfer rootFolder="/home/gtcdev" accessType="SFTP" host="100.64.0.1" port="22" sshConfigId="fffd62d4-dc18-4867-bb4a-ffee6db55e4d" sshConfig="gtcdev@100.64.0.1:22 password">
+          <advancedOptions>
+            <advancedOptions dataProtectionLevel="Private" keepAliveTimeout="0" passiveMode="true" shareSSLContext="true" isUseRsync="true" />
+          </advancedOptions>
+        </fileTransfer>
+      </webServer>
+    </option>
+  </component>
+</project>

html/webpage/assets/js/hardwarestatus.js

@@ -0,0 +1,109 @@
+$(document).ready(function() {
+    const path = window.location.pathname;
+    const ws = new WebSocket('ws://' + window.location.host + path + '/ws');
+
+    ws.onopen = function() {
+        //console.log('WebSocket connection opened');
+        $('#indicatorDisconnected').addClass('visually-hidden');
+        $('#indicatorConnected').removeClass('visually-hidden');
+        setInterval(function() {
+            sendCommand({ command: "getCPUStatus" });
+            sendCommand({ command: "getMemoryStatus" });
+            sendCommand({ command: "getDiskStatus" });
+            sendCommand({ command: "getEthernetStatus" });
+            sendCommand({ command: "getModemStatus" });
+            sendCommand({ command: "getTunnelStatus" });
+            
+        }, 1000);
+    };
+
+    ws.onmessage = function(event) {
+        //console.log('WebSocket message received:', event.data);
+        let msg = {};
+        try {
+            msg = JSON.parse(event.data);
+        } catch (e) {
+            console.error('Invalid JSON:', event.data);
+            return;
+        }
+        
+        if (msg.reply && msg.reply.length>0 && msg.data && msg.data.length > 0) {
+            switch (msg.reply) {
+                case "getCPUStatus":
+                    const cpuData = JSON.parse(msg.data);
+                    //console.log('CPU Status Data:', cpuData);
+                    $('#cpuUsage').text(cpuData.average ? cpuData.average + '%' : 'N/A');
+                    $('#core0Usage').text(cpuData.core0 ? cpuData.core0 + '%' : 'N/A');
+                    $('#core1Usage').text(cpuData.core1 ? cpuData.core1 + '%' : 'N/A');
+                    $('#core2Usage').text(cpuData.core2 ? cpuData.core2 + '%' : 'N/A');
+                    $('#core3Usage').text(cpuData.core3 ? cpuData.core3 + '%' : 'N/A');
+                    $('#cpuTemperature').text(cpuData.temperature ? cpuData.temperature + '°C' : 'N/A');
+                    break;
+                case "getMemoryStatus":
+                    const memoryData = JSON.parse(msg.data);
+                    //console.log('Memory Status Data:', memoryData);
+                    $('#ramTotal').text(memoryData.total ? memoryData.total : 'N/A');
+                    $('#ramUsed').text(memoryData.used ? memoryData.used : 'N/A');
+                    $('#ramFree').text(memoryData.free ? memoryData.free : 'N/A');
+                    $('#ramFreePercent').text(memoryData.freePercent ? memoryData.freePercent + '%' : 'N/A');
+                    break;
+                case "getDiskStatus":
+                    const diskData = JSON.parse(msg.data);
+                    //console.log('Disk Status Data:', diskData);
+                    $('#diskTotal').text(diskData.total ? diskData.total : 'N/A');
+                    $('#diskUsed').text(diskData.used ? diskData.used : 'N/A');
+                    $('#diskFree').text(diskData.free ? diskData.free : 'N/A');
+                    $('#diskFreePercent').text(diskData.freePercent ? diskData.freePercent + '%' : 'N/A');
+                    break;
+                case "getEthernetStatus":
+                    const ethernetData = JSON.parse(msg.data);
+                    //console.log('Ethernet Status Data:', ethernetData);
+                    $('#eth0Status').text(ethernetData.status ? ethernetData.status : 'N/A');
+                    $('#eth0IP').text(ethernetData.ip ? ethernetData.ip : 'N/A');
+                    $('#eth0TXBytes').text(ethernetData.txBytes ? ethernetData.txBytes : 'N/A');
+                    $('#eth0RXBytes').text(ethernetData.rxBytes ? ethernetData.rxBytes : 'N/A');
+                    $('#eth0TXSpeed').text(ethernetData.txSpeed ? ethernetData.txSpeed : 'N/A');
+                    $('#eth0RXSpeed').text(ethernetData.rxSpeed ? ethernetData.rxSpeed : 'N/A');
+                    break;
+                case "getModemStatus":
+                    const modemData = JSON.parse(msg.data);
+                    //console.log('Modem Status Data:', modemData);
+                    $('#modemStatus').text(modemData.status ? modemData.status : 'N/A');
+                    $('#modemIP').text(modemData.ip ? modemData.ip : 'N/A');
+                    $('#modemTXBytes').text(modemData.txBytes ? modemData.txBytes : 'N/A');
+                    $('#modemRXBytes').text(modemData.rxBytes ? modemData.rxBytes : 'N/A');
+                    $('#modemTXSpeed').text(modemData.txSpeed ? modemData.txSpeed : 'N/A');
+                    $('#modemRXSpeed').text(modemData.rxSpeed ? modemData.rxSpeed : 'N/A');
+                    break;
+                case "getTunnelStatus":
+                    const tunnelData = JSON.parse(msg.data);
+                    //console.log('Tunnel Status Data:', tunnelData);
+                    $('#tunnelStatus').text(tunnelData.status ? tunnelData.status : 'N/A');
+                    $('#tunnelIP').text(tunnelData.ip ? tunnelData.ip : 'N/A');
+                    $('#tunnelTXBytes').text(tunnelData.txBytes ? tunnelData.txBytes : 'N/A');
+                    $('#tunnelRXBytes').text(tunnelData.rxBytes ? tunnelData.rxBytes : 'N/A');
+                    $('#tunnelTXSpeed').text(tunnelData.txSpeed ? tunnelData.txSpeed : 'N/A');
+                    $('#tunnelRXSpeed').text(tunnelData.rxSpeed ? tunnelData.rxSpeed : 'N/A');
+                    break;
+            }
+        }
+    };
+
+    ws.onclose = function() {
+        //console.log('WebSocket connection closed');
+        $('#indicatorDisconnected').removeClass('visually-hidden');
+        $('#indicatorConnected').addClass('visually-hidden');
+    };
+
+    ws.onerror = function(error) {
+        console.error('WebSocket error:', error);
+    };
+
+    function sendCommand(command) {
+        if (ws.readyState === WebSocket.OPEN) {
+            ws.send(JSON.stringify(command));
+        } else {
+            console.error('WebSocket is not open. Unable to send command:', command);
+        }
+    }
+});

html/webpage/hardwarestatus.html

@@ -0,0 +1,260 @@
+<!DOCTYPE html>
+<html data-bs-theme="light" lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
+    <title>EWS_POC</title>
+    <link rel="stylesheet" href="assets/bootstrap/css/bootstrap.min.css">
+    <link rel="stylesheet" href="assets/css/Navbar-With-Button-icons.css">
+</head>
+
+<body>
+    <nav class="navbar navbar-expand-md bg-body py-3">
+        <div class="container"><a class="navbar-brand d-flex align-items-center" href="#"><span class="bs-icon-sm bs-icon-rounded bs-icon-primary d-flex justify-content-center align-items-center me-2 bs-icon"><svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" fill="currentColor" viewBox="0 0 16 16" class="bi bi-bezier">
+                        <path fill-rule="evenodd" d="M0 10.5A1.5 1.5 0 0 1 1.5 9h1A1.5 1.5 0 0 1 4 10.5v1A1.5 1.5 0 0 1 2.5 13h-1A1.5 1.5 0 0 1 0 11.5zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5zm10.5.5A1.5 1.5 0 0 1 13.5 9h1a1.5 1.5 0 0 1 1.5 1.5v1a1.5 1.5 0 0 1-1.5 1.5h-1a1.5 1.5 0 0 1-1.5-1.5zm1.5-.5a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5zM6 4.5A1.5 1.5 0 0 1 7.5 3h1A1.5 1.5 0 0 1 10 4.5v1A1.5 1.5 0 0 1 8.5 7h-1A1.5 1.5 0 0 1 6 5.5zM7.5 4a.5.5 0 0 0-.5.5v1a.5.5 0 0 0 .5.5h1a.5.5 0 0 0 .5-.5v-1a.5.5 0 0 0-.5-.5z"></path>
+                        <path d="M6 4.5H1.866a1 1 0 1 0 0 1h2.668A6.517 6.517 0 0 0 1.814 9H2.5c.123 0 .244.015.358.043a5.517 5.517 0 0 1 3.185-3.185A1.503 1.503 0 0 1 6 5.5zm3.957 1.358A1.5 1.5 0 0 0 10 5.5v-1h4.134a1 1 0 1 1 0 1h-2.668a6.517 6.517 0 0 1 2.72 3.5H13.5c-.123 0-.243.015-.358.043a5.517 5.517 0 0 0-3.185-3.185z"></path>
+                    </svg></span><span>Early Warning System Receiver</span></a><button data-bs-toggle="collapse" class="navbar-toggler" data-bs-target="#navcol-1"><span class="visually-hidden">Toggle navigation</span><span class="navbar-toggler-icon"></span></button>
+            <div class="collapse navbar-collapse" id="navcol-1">
+                <ul class="navbar-nav me-auto">
+                    <li class="nav-item"><a class="nav-link" href="pocreceiver.html">POC Receiver</a></li>
+                    <li class="nav-item"><a class="nav-link" href="prerecordedbroadcast.html">Pre-Recorded Broadcast</a></li>
+                    <li class="nav-item"><a class="nav-link" href="setting.html">Setting and Content</a></li>
+                    <li class="nav-item"><a class="nav-link active" href="#">Hardware Status</a></li>
+                </ul><a class="btn btn-primary" role="button" href="index.html">Logout<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="1em" height="1em" fill="currentColor" class="visually-hidden" id="indicatorDisconnected" style="color: var(--bs-danger);width: 26px;height: 26px;font-weight: bold;">
+                        <!--! Font Awesome Free 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc. -->
+                        <path d="M256 48a208 208 0 1 1 0 416 208 208 0 1 1 0-416zm0 464A256 256 0 1 0 256 0a256 256 0 1 0 0 512zM175 175c-9.4 9.4-9.4 24.6 0 33.9l47 47-47 47c-9.4 9.4-9.4 24.6 0 33.9s24.6 9.4 33.9 0l47-47 47 47c9.4 9.4 24.6 9.4 33.9 0s9.4-24.6 0-33.9l-47-47 47-47c9.4-9.4 9.4-24.6 0-33.9s-24.6-9.4-33.9 0l-47 47-47-47c-9.4-9.4-24.6-9.4-33.9 0z"></path>
+                    </svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="1em" height="1em" fill="currentColor" class="visually-hidden" id="indicatorConnected" style="color: var(--bs-success);width: 26px;height: 26px;font-weight: bold;">
+                        <!--! Font Awesome Free 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc. -->
+                        <path d="M256 48a208 208 0 1 1 0 416 208 208 0 1 1 0-416zm0 464A256 256 0 1 0 256 0a256 256 0 1 0 0 512zM369 209c9.4-9.4 9.4-24.6 0-33.9s-24.6-9.4-33.9 0l-111 111-47-47c-9.4-9.4-24.6-9.4-33.9 0s-9.4 24.6 0 33.9l64 64c9.4 9.4 24.6 9.4 33.9 0L369 209z"></path>
+                    </svg></a>
+            </div>
+        </div>
+    </nav>
+    <div class="container">
+        <div class="row">
+            <h1 class="text-center">Hardware Status</h1>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">CPU (Average)</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">C0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">C1</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">C2</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">C3</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Temp</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="cpuUsage">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="core0Usage">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="core1Usage">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="core2Usage">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="core3Usage">0.0</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="cpuTemp">0</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">RAM Total</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Free</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Used</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Free %</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="ramTotal">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="ramFree">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="ramUsed">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="ramFreePercent">0.0</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Disk Total</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Free</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Used</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Free %</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="diskTotal">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="diskFree">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="diskUsed">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="diskFreePercent">0.0</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">ETH 0 Status</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">IP</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">TX Bytes</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">RX Bytes</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">TX Speed</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">RX Speed</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="eth0Status">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="eth0IP">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="eth0TXBytes">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="eth0RXBytes">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="eth0TXSpeed">0.0</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="eth0RXSpeed">0</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Modem Status</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">IP</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">TX Bytes</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">RX Bytes</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">TX Speed</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">RX Speed</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="modemStatus">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="modemIP">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="modemTXBytes">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="modemRXBytes">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="modemTXSpeed">0.0</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="modemRXSpeed">0</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">Tunnel Status</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">IP</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">TX Bytes</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">RX Bytes</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">TX Speed</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="fw-bold d-flex h-100 justify-content-center align-items-center">RX Speed</p>
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-6 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="tunnelStatus">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="tunnelIP">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="tunnelTXBytes">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="tunnelRXBytes">0.0</p>
+            </div>
+            <div class="col-1 col-sm-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="tunnelTXSpeed">0.0</p>
+            </div>
+            <div class="col-2 col-md-2">
+                <p class="d-flex h-100 justify-content-center align-items-center" id="tunnelRXSpeed">0</p>
+            </div>
+        </div>
+    </div>
+    <script src="assets/bootstrap/js/bootstrap.min.js"></script>
+    <script src="assets/js/jquery-3.7.1.min.js"></script>
+    <script src="assets/js/hardwarestatus.js"></script>
+</body>
+
+</html>

html/webpage/pocreceiver.html

@@ -20,6 +20,7 @@
                     <li class="nav-item"><a class="nav-link active" href="#">POC Receiver</a></li>
                     <li class="nav-item"><a class="nav-link" href="prerecordedbroadcast.html">Pre-Recorded Broadcast</a></li>
                     <li class="nav-item"><a class="nav-link" href="setting.html">Setting and Content</a></li>
+                    <li class="nav-item"><a class="nav-link" href="hardwarestatus.html">Hardware Status</a></li>
                 </ul><a class="btn btn-primary" role="button" href="index.html">Logout<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="1em" height="1em" fill="currentColor" class="visually-hidden" id="indicatorDisconnected" style="color: var(--bs-danger);width: 26px;height: 26px;font-weight: bold;">
                         <!--! Font Awesome Free 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc. -->
                         <path d="M256 48a208 208 0 1 1 0 416 208 208 0 1 1 0-416zm0 464A256 256 0 1 0 256 0a256 256 0 1 0 0 512zM175 175c-9.4 9.4-9.4 24.6 0 33.9l47 47-47 47c-9.4 9.4-9.4 24.6 0 33.9s24.6 9.4 33.9 0l47-47 47 47c9.4 9.4 24.6 9.4 33.9 0s9.4-24.6 0-33.9l-47-47 47-47c9.4-9.4 9.4-24.6 0-33.9s-24.6-9.4-33.9 0l-47 47-47-47c-9.4-9.4-24.6-9.4-33.9 0z"></path>
@@ -35,7 +36,7 @@
             <h1 class="text-center">Zello Status</h1>
         </div>
         <div class="row">
-            <p class="d-flex justify-content-center" id="zelloStatus">Paragraph</p>
+            <p class="d-flex justify-content-center" id="zelloStatus">No Status</p>
         </div>
     </div>
     <script src="assets/bootstrap/js/bootstrap.min.js"></script>

html/webpage/prerecordedbroadcast.html

@@ -20,6 +20,7 @@
                     <li class="nav-item"><a class="nav-link" href="pocreceiver.html">POC Receiver</a></li>
                     <li class="nav-item"><a class="nav-link active" href="#">Pre-Recorded Broadcast</a></li>
                     <li class="nav-item"><a class="nav-link" href="setting.html">Setting and Content</a></li>
+                    <li class="nav-item"><a class="nav-link" href="hardwarestatus.html">Hardware Status</a></li>
                 </ul><a class="btn btn-primary" role="button" href="index.html">Logout<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="1em" height="1em" fill="currentColor" class="visually-hidden" id="indicatorDisconnected" style="color: var(--bs-danger);width: 26px;height: 26px;font-weight: bold;">
                         <!--! Font Awesome Free 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc. -->
                         <path d="M256 48a208 208 0 1 1 0 416 208 208 0 1 1 0-416zm0 464A256 256 0 1 0 256 0a256 256 0 1 0 0 512zM175 175c-9.4 9.4-9.4 24.6 0 33.9l47 47-47 47c-9.4 9.4-9.4 24.6 0 33.9s24.6 9.4 33.9 0l47-47 47 47c9.4 9.4 24.6 9.4 33.9 0s9.4-24.6 0-33.9l-47-47 47-47c9.4-9.4 9.4-24.6 0-33.9s-24.6-9.4-33.9 0l-47 47-47-47c-9.4-9.4-24.6-9.4-33.9 0z"></path>

html/webpage/setting.html

@@ -20,6 +20,7 @@
                     <li class="nav-item"><a class="nav-link" href="pocreceiver.html">POC Receiver</a></li>
                     <li class="nav-item"><a class="nav-link" href="prerecordedbroadcast.html">Pre-Recorded Broadcast</a></li>
                     <li class="nav-item"><a class="nav-link active" href="#">Setting and Content</a></li>
+                    <li class="nav-item"><a class="nav-link" href="hardwarestatus.html">Hardware&nbsp; Status</a></li>
                 </ul><a class="btn btn-primary" role="button" href="index.html">Logout<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" width="1em" height="1em" fill="currentColor" class="visually-hidden" id="indicatorDisconnected" style="color: var(--bs-danger);width: 26px;height: 26px;font-weight: bold;">
                         <!--! Font Awesome Free 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2023 Fonticons, Inc. -->
                         <path d="M256 48a208 208 0 1 1 0 416 208 208 0 1 1 0-416zm0 464A256 256 0 1 0 256 0a256 256 0 1 0 0 512zM175 175c-9.4 9.4-9.4 24.6 0 33.9l47 47-47 47c-9.4 9.4-9.4 24.6 0 33.9s24.6 9.4 33.9 0l47-47 47 47c9.4 9.4 24.6 9.4 33.9 0s9.4-24.6 0-33.9l-47-47 47-47c9.4-9.4 9.4-24.6 0-33.9s-24.6-9.4-33.9 0l-47 47-47-47c-9.4-9.4-24.6-9.4-33.9 0z"></path>
@@ -168,14 +169,9 @@
         <div class="row w-100">
             <h1 class="text-center">Content Upload</h1>
         </div>
-        <div class="row"><input type="file" id="chosenFile"></div>
+        <div class="row w-100">
-        <div class="row">
+            <div class="col-10"><input type="file" id="chosenFile"></div>
-            <div class="col">
+            <div class="col-2"><button class="btn btn-primary" id="btnUploadContent" type="button">Upload</button></div>
-                <div class="progress h-100" id="contentUploadProgress">
-                    <div class="progress-bar" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100" style="width: 50%;">50%</div>
-                </div>
-            </div>
-            <div class="col-2"><button class="btn btn-primary mt-2 mb-2" id="btnUploadContent" type="button">Upload</button></div>
         </div>
     </div>
     <script src="assets/bootstrap/js/bootstrap.min.js"></script>

meta/nanopi duo2/META-INF/MANIFEST.MF

@@ -0,0 +1,27 @@
+Manifest-Version: 1.0
+Main-Class: MainKt
+Class-Path: kotlinx-coroutines-core-1.10.2.jar kotlinx-coroutines-core-j
+ vm-1.10.2.jar annotations-23.0.0.jar kotlin-stdlib-2.1.0.jar Java-WebSo
+ cket-1.6.0.jar slf4j-api-2.0.13.jar kotlin-stdlib-2.2.0.jar annotations
+ -13.0.jar jna-5.17.0.jar javalin-bundle-6.7.0.jar javalin-6.7.0.jar slf
+ 4j-api-2.0.17.jar jetty-server-11.0.25.jar jetty-http-11.0.25.jar webso
+ cket-jetty-server-11.0.25.jar jetty-servlet-11.0.25.jar jetty-security-
+ 11.0.25.jar jetty-webapp-11.0.25.jar jetty-xml-11.0.25.jar websocket-je
+ tty-api-11.0.25.jar websocket-jetty-common-11.0.25.jar websocket-core-c
+ ommon-11.0.25.jar websocket-servlet-11.0.25.jar websocket-core-server-1
+ 1.0.25.jar javalin-context-mock-6.7.0.jar jetty-jakarta-servlet-api-5.0
+ .2.jar javalin-testtools-6.7.0.jar okhttp-4.12.0.jar okio-3.6.0.jar oki
+ o-jvm-3.6.0.jar kotlin-stdlib-common-1.9.10.jar javalin-micrometer-6.7.
+ 0.jar micrometer-core-1.14.5.jar micrometer-commons-1.14.5.jar micromet
+ er-observation-1.14.5.jar HdrHistogram-2.2.2.jar LatencyUtils-2.0.3.jar
+  micrometer-jetty11-1.14.5.jar jackson-databind-2.18.3.jar jackson-anno
+ tations-2.18.3.jar jackson-core-2.18.3.jar jackson-module-kotlin-2.18.3
+ .jar kotlin-reflect-1.8.10.jar jackson-datatype-jsr310-2.18.3.jar brotl
+ i4j-1.18.0.jar service-1.18.0.jar native-windows-x86_64-1.18.0.jar http
+ 2-server-11.0.25.jar http2-common-11.0.25.jar http2-hpack-11.0.25.jar j
+ etty-alpn-conscrypt-server-11.0.25.jar conscrypt-openjdk-uber-2.5.2.jar
+  jetty-alpn-server-11.0.25.jar jetty-io-11.0.25.jar jetty-util-11.0.25.
+ jar logback-classic-1.5.18.jar logback-core-1.5.18.jar kotlin-stdlib-jd
+ k8-1.9.25.jar kotlin-stdlib-1.9.25.jar annotations-13.0.jar kotlin-stdl
+ ib-jdk7-1.9.25.jar
+

src/Main.kt

@@ -12,23 +12,124 @@ import zello.ZelloEvent
 import javafx.util.Pair
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import org.slf4j.LoggerFactory
+import sbc.DigitalOutput
+import sbc.NanopiDuo2
+import sbc.SbcInfo
+import sbc.cpuinfo
+import sbc.meminfo
+import sbc.netdev
 import somecodes.Codes
+import somecodes.Codes.Companion.isLinux
 import web.WsCommand
 import java.util.function.BiFunction
 
 //TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
 // click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
 fun main() {
+    // change when updating the application
+    val appversion = "0.1.1"
     val logger = LoggerFactory.getLogger("Main")
     val objectMapper = jacksonObjectMapper()
+    logger.info("Application started, version $appversion")
 
     val cfg = configFile()
     cfg.Load()
+
+    /**
+     * Coroutine scope for the application
+     */
+    val appscope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
+
+    /**
+     * various SBC related functions and information
+     */
+    var sbc : SbcInfo?
+
+    /**
+     * cpu information, one time read
+     */
+    var cpuinfo: cpuinfo?
+
+    /**
+     * ram information, will be updated periodically in appscope
+     */
+    var raminfo: meminfo?
+
+    /**
+     * cpu statistics, will be updated periodically in appscope
+     * key is cpu name
+     * value is cpu utilization percentage
+     * e.g. cpustat["cpu0"] = 12.5
+     */
+    val cpustat = HashMap<String, Double>()
+
+    /**
+     * network statistics, will be updated periodically in appscope
+     * key is network interface name
+     * value is a Pair of strings, first is RX transfer speed per second, second is TX transfer speed per second
+     */
+    val networkstat = HashMap<String, Pair<String, String>>()
+
+    if (isLinux()){
+        sbc = SbcInfo()
+        cpuinfo = sbc.getCpuInfo()
+        //logger.info("CPU Info: ${cpuinfo?.hardware?:"N/A"}, Cores: ${cpuinfo?.core?:"N/A"}, SerialNumber: ${cpuinfo?.serialNumber?:"N/A"}")
+
+        appscope.launch {
+            // run while the application is active
+            while(isActive){
+                raminfo = sbc.getMemInfo()
+                //logger.info(raminfo?.toString() ?: "Failed to get RAM info")
+                sbc.getCpuUtilization { it ->
+                    // result will come 1 second later, as array of pairs,
+                    // with first being cpu name and second being utilization percentage
+                    it.forEach { cpuinfo ->
+                        cpustat[cpuinfo.first] = cpuinfo.second
+                    }
+                    //logger.info("CPU Utilization: ${cpustat.map { "${it.key.ifBlank { "avg" }}: ${    it.value}%" }}")
+                }
+                sbc.getNetworkTransferSpeed { it ->
+                    // result will come 1 second later, as map of network interface name to Pair of RX and TX speeds
+                    it.forEach { xx ->
+                        networkstat[xx.key] = Pair(
+                            netdev.toText(xx.value.first)+ "/s",
+                            netdev.toText(xx.value.second) + "/s"
+                        )
+                    }
+                    //logger.info("Network Transfer Speed: ${networkstat.map { "${it.key}: RX=${it.value.key}, TX=${it.value.value}" }}")
+                }
+
+                delay(5000) // Update every 5 seconds
+            }
+        }
+    }
+
+
+    var relay1 : DigitalOutput? = null
+    var relay2 : DigitalOutput? = null
+    var commandLED : DigitalOutput? = null
+    var streamingLED : DigitalOutput? = null
+
+    appscope.launch {
+        relay1 = DigitalOutput(NanopiDuo2.CLK.linuxGpio, "Relay1", true)
+        relay2 = DigitalOutput(NanopiDuo2.MISO.linuxGpio, "Relay2", true)
+        commandLED = DigitalOutput(NanopiDuo2.TX1.linuxGpio, "CommandLED", true)
+        streamingLED = DigitalOutput(NanopiDuo2.RX1.linuxGpio, "StreamingLED", true)
+        relay1.setOFF()
+        relay2.setOFF()
+        commandLED.setOFF()
+        streamingLED.setOFF()
+    }
+
     var audioID = 0
-    val preferedAudioDevice = "Speakers"
+    val preferedAudioDevice = "USB Audio"
+    AudioUtility.LoadLibraries()
+    AudioUtility.PrintVersion()
 
     AudioUtility.DetectPlaybackDevices().forEach { pair ->
         logger.info("Device ID: ${pair.first}, Name: ${pair.second}")
@@ -36,10 +137,9 @@ fun main() {
             audioID = pair.first
         }
     }
-    if (audioID!=0){
+    if (audioID==0) audioID = 1 // fallback to first device if preferred not found
     val initsuccess = AudioUtility.InitDevice(audioID,44100)
     logger.info("Audio Device $audioID initialized: $initsuccess")
-    }
 
     // for Zello Client
     val o = OpusStreamReceiver(audioID)
@@ -113,19 +213,24 @@ fun main() {
 
         override fun onConnected() {
             logger.info("Connected to Zello server.")
+            relay1?.setOFF()
+            relay2?.setOFF()
         }
 
         override fun onDisconnected(reason: String) {
             logger.info("Disconnected from Zello Server, reason: $reason")
             logger.info("Reconnecting after 10 seconds...")
             z.Stop()
+            relay1?.setOFF()
+            relay2?.setOFF()
             val e = this
-            CoroutineScope(Dispatchers.Default).launch {
 
+            appscope.launch {
                 delay(10000) // Wait for 10 seconds before trying to reconnect
                 z = CreateZelloFromConfig()
                 z.Start(e)
             }
+
         }
 
         override fun onError(errorMessage: String) {
@@ -136,8 +241,10 @@ fun main() {
             // stop any previous playback
             afp?.Stop()
             afp = null
-
+            commandLED?.Blink()
             if (o.Start()){
+                relay1?.setON()
+                relay2?.setON()
                 logger.info("Opus Receiver ready for streaming from $from for $For on channel $channel")
             } else {
                 logger.info("Failed to start Opus Receiver for streaming from $from for $For on channel $channel")
@@ -146,6 +253,9 @@ fun main() {
 
         override fun onStopStreaming(from: String, For: String, channel: String) {
             o.Stop()
+            relay1?.setON()
+            relay2?.setOFF()
+            commandLED?.Blink()
             logger.info("Opus Receiver stopped streaming from $from for $For on channel $channel")
         }
 
@@ -156,6 +266,7 @@ fun main() {
             data: ByteArray
         ) {
             if (o.isPlaying) o.PushData(data)
+            streamingLED?.Blink()
         }
     }
     z.Start(z_event)
@@ -166,6 +277,7 @@ fun main() {
         when (source) {
             "setting" -> when(cmd.command){
                 "getConfig" ->{
+                    commandLED?.Blink()
                     val data = mapOf(
                         "zelloUsername" to cfg.ZelloUsername,
                         "zelloPassword" to cfg.ZelloPassword,
@@ -187,6 +299,7 @@ fun main() {
                     WsReply(cmd.command, objectMapper.writeValueAsString(data).trim())
                 }
                 "setZelloConfig" -> {
+                    commandLED?.Blink()
                     try{
                         val xx = objectMapper.readValue(cmd.data, object: TypeReference<Map<String, String>>() {})
                         var changed = false
@@ -220,6 +333,7 @@ fun main() {
                             z = CreateZelloFromConfig()
                             z.Start(z_event)
 
+
                             WsReply(cmd.command,"success")
                         } else WsReply(cmd.command,"No changes made")
                     } catch (e: Exception){
@@ -228,6 +342,7 @@ fun main() {
 
                 }
                 "setMessageConfig"-> {
+                    commandLED?.Blink()
                     try{
 
                         val xx = objectMapper.readValue(cmd.data, object : TypeReference<Map<String, String>>() {})
@@ -278,6 +393,7 @@ fun main() {
 
             "prerecordedbroadcast" -> when(cmd.command){
                 "getMessageConfig" ->{
+                    commandLED?.Blink()
                     val data = mapOf(
                         "M1" to cfg.M1,
                         "M2" to cfg.M2,
@@ -291,6 +407,7 @@ fun main() {
                     WsReply(cmd.command, objectMapper.writeValueAsString(data))
                 }
                 "getPlaybackStatus" ->{
+                    commandLED?.Blink()
                     if (afp!=null && true==afp?.isPlaying){
                         WsReply(cmd.command, "Playing: ${afp?.filename}, Duration: ${afp?.duration?.toInt()}, Elapsed: ${afp?.elapsed?.toInt()} seconds")
                     } else {
@@ -298,7 +415,7 @@ fun main() {
                     }
                 }
                 "playMessage" ->{
-
+                    commandLED?.Blink()
                     afp?.Stop()
                     afp = null
                     // stop Opus Receiver if it is running
@@ -317,14 +434,23 @@ fun main() {
                             null
                         }
                     }
+                    relay1?.setOFF()
+                    relay2?.setOFF()
                     if (filename!=null){
                         try{
                             afp= AudioFilePlayer(audioID, filename)
-                            afp?.Play { _ -> afp = null}
+                            afp?.Play { _ ->
+                                afp = null
+                                relay1?.setOFF()
+                                relay2?.setOFF()
+                            }
+                            relay1?.setON()
+                            relay2?.setON()
                             WsReply(cmd.command,"success")
 
                         } catch (e: Exception){
                             afp?.Stop()
+
                             afp = null
                             WsReply(cmd.command, "failed: ${e.message}")
                         }
@@ -336,14 +462,18 @@ fun main() {
 
                 }
                 "stopMessage" ->{
+                    commandLED?.Blink()
                     afp?.Stop()
                     afp = null
+                    relay1?.setOFF()
+                    relay2?.setOFF()
                     WsReply(cmd.command,"success")
                 }
                 else -> WsReply(cmd.command,"Invalid command: ${cmd.command}")
             }
             "pocreceiver" -> when(cmd.command){
                 "getZelloStatus" -> {
+                    commandLED?.Blink()
                     var status = "Disconnected"
                     if (z.currentChannel?.isNotBlank() == true){
                         status = "Channel: ${z.currentChannel}, Online: ${z.isOnline}, Username: ${z.username}"

src/audio/AudioFilePlayer.kt

@@ -1,5 +1,6 @@
 package audio
 
+import audio.AudioUtility.Companion.bass
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
@@ -15,7 +16,7 @@ import kotlin.io.path.exists
  */
 @Suppress("unused")
 class AudioFilePlayer(deviceID: Int, val filename: String, device_samplingrate: Int = 48000) {
-    private val bass: Bass = Bass.Instance
+
     private var filehandle = 0
     var isPlaying = false
     val fileSize: Long
@@ -25,6 +26,7 @@ class AudioFilePlayer(deviceID: Int, val filename: String, device_samplingrate:
         val fullpath = Codes.audioFilePath.resolve(filename)
         if (fullpath.exists()){
             if (AudioUtility.InitDevice(deviceID, device_samplingrate)) {
+                AudioUtility.setVolumeOutput(deviceID,1.0f)
                 filehandle = bass.BASS_StreamCreateFile(false, fullpath.absolutePathString(), 0, 0, 0)
                 if (filehandle!=0){
                     fileSize = bass.BASS_ChannelGetLength(filehandle, Bass.BASS_POS_BYTE)
@@ -47,6 +49,7 @@ class AudioFilePlayer(deviceID: Int, val filename: String, device_samplingrate:
 
     fun Play(finished: Consumer<Any> ) : Boolean{
         if (bass.BASS_ChannelPlay(filehandle, false)){
+            bass.BASS_ChannelSetAttribute(filehandle, Bass.BASS_ATTRIB_VOL, 1.0f)
             elapsed = 0.0
             CoroutineScope(Dispatchers.Default).launch {
                 isPlaying = true

src/audio/AudioUtility.kt

@@ -1,15 +1,63 @@
 package audio
+import com.sun.jna.Platform
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
+import java.nio.file.Files
+import java.nio.file.Path
+import kotlin.io.path.isRegularFile
+import java.nio.file.StandardCopyOption.REPLACE_EXISTING
 
+@Suppress("unused")
 class AudioUtility {
-
+    companion object{
+        val bass : Bass = Bass.Instance
         private val logger : Logger = LoggerFactory.getLogger(AudioUtility::class.java)
 
+        fun ExtractLibraries(parent: String, filename: String, targetPath: Path) : Path?{
+            if (targetPath.resolve(filename).isRegularFile()) return targetPath.resolve(filename)   // already exists
+            val out = targetPath.resolve(filename)
+
+            try{
+                AudioUtility::class.java.getResourceAsStream("$parent/$filename").use { ins ->
+                    requireNotNull(ins) { "Resource $parent/$filename not found" }
+                    Files.copy(ins, out, REPLACE_EXISTING)
+                }
+                out.toFile().setReadable(true, false)
+                out.toFile().setExecutable(true, false)
+                return out
+            } catch (_: Exception){
+                return null
+            }
 
 
-    companion object{
+        }
-        private val bass = Bass.Instance
+
+        fun LoadLibraries(){
+            val runfolder = Path.of(System.getProperty("user.dir"))
+            //logger.info("Checking for BASS libraries in $runfolder")
+            val resourceprefix = Platform.RESOURCE_PREFIX
+            logger.info("Resource prefix : $resourceprefix")
+            val bass = ExtractLibraries(resourceprefix, System.mapLibraryName("bass"), runfolder)
+            val bassopus = ExtractLibraries(resourceprefix, System.mapLibraryName("bassopus"), runfolder)
+            if (bass!=null){
+                System.load(bass.toString())
+            }
+            if (bassopus!=null){
+                System.load(bassopus.toString())
+            }
+        }
+
+        fun PrintVersion(){
+            logger.info("BASS Version: ${bass.BASS_GetVersion().toHexString()}")
+        }
+
+        fun LoadPlugin(plugin: String){
+            if (bass.BASS_PluginLoad(plugin, 0)>0){
+                logger.info("Plugin $plugin loaded successfully")
+            } else {
+                logger.error("Failed to load plugin $plugin: ${bass.BASS_ErrorGetCode()}")
+            }
+        }
 
         fun DetectPlaybackDevices() : List<Pair<Int, String>> {
             val result = ArrayList<Pair<Int, String>>()
@@ -24,6 +72,14 @@ class AudioUtility {
             return result
         }
 
+        fun setVolumeOutput(deviceID: Int, value: Float){
+            var vol = value
+            if (vol < 0) vol = 0f
+            if (vol > 1) vol = 1f
+            bass.BASS_SetDevice(deviceID)
+            bass.BASS_SetVolume(vol)
+        }
+
         fun InitDevice(deviceID: Int, device_samplingrate: Int = 48000) : Boolean {
             val dev = Bass.BASS_DEVICEINFO()
             if (bass.BASS_GetDeviceInfo(deviceID, dev)) {
@@ -54,9 +110,7 @@ class AudioUtility {
         }
     }
 
-    init{
+
-        logger.info("Bass Version = ${bass.BASS_GetVersion().toHexString()}")
-    }
 
 
 

src/audio/Bass.java

@@ -8,6 +8,7 @@ import com.sun.jna.*;
 public interface Bass extends Library {
 
     Bass Instance = Native.load("bass", Bass.class);
+
      int BASSVERSION = 0x204;	// API version
      String BASSVERSIONTEXT = "2.4";
 

src/audio/OpusStreamReceiver.kt

@@ -1,5 +1,6 @@
 package audio
 
+import audio.AudioUtility.Companion.bass
 import com.sun.jna.Memory
 import com.sun.jna.Pointer
 import org.slf4j.Logger
@@ -13,11 +14,11 @@ import org.slf4j.LoggerFactory
  */
 @Suppress("unused")
 class OpusStreamReceiver(val deviceID: Int, val samplingrate: Int = 16000) {
-    private val bass = Bass.Instance
-    private val bassopus = BASSOPUS.Instance
     private var filehandle = 0
     private val logger : Logger = LoggerFactory.getLogger(OpusStreamReceiver::class.java)
     var isPlaying = false
+    val bassopus : BASSOPUS = BASSOPUS.Instance
+
 
 
 
@@ -34,9 +35,12 @@ class OpusStreamReceiver(val deviceID: Int, val samplingrate: Int = 16000) {
             opushead.channels = 1
             opushead.inputrate = samplingrate
             val procpush = Pointer(-1)
+            AudioUtility.setVolumeOutput(deviceID, 1.0f)
+
             filehandle = bassopus.BASS_OPUS_StreamCreate(opushead,0, procpush, null)
             if (filehandle != 0){
                 if (bass.BASS_ChannelPlay(filehandle,false)){
+                    bass.BASS_ChannelSetAttribute(filehandle, Bass.BASS_ATTRIB_VOL, 1.0f)
                     isPlaying = true
                     return true
                 } else logger.error("BASS_ChannelPlay failed for filehandle $filehandle, code ${bass.BASS_ErrorGetCode()}")

src/sbc/DigitalOutput.kt

@@ -0,0 +1,157 @@
+package sbc
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import org.slf4j.LoggerFactory
+import somecodes.Codes.Companion.gpioExportPath
+import somecodes.Codes.Companion.gpioPath
+import somecodes.Codes.Companion.gpioUnexportPath
+import somecodes.Codes.Companion.haveGpioSupport
+import java.nio.file.Files
+import java.nio.file.Path
+import kotlin.io.path.isDirectory
+
+/**
+ * Create a digital output for a GPIO pin.
+ * @param linuxGpio The GPIO pin number in Linux.
+ * @param name The name of the digital output.
+ * @param activeHigh If true, the output is active high (default is true).
+ * @property inited Indicates whether the digital output has been initialized.
+ *
+ */
+@Suppress("unused")
+class DigitalOutput(val linuxGpio: Int, val name: String, val activeHigh: Boolean = true) {
+    var inited = false; private set
+    private var valuepath: Path? = null
+    private val logger = LoggerFactory.getLogger("DigitalOutput $name ($linuxGpio)")
+    init{
+        if (haveGpioSupport()){
+            if (checkExists()){
+                // already exists
+                try{
+                    // try to set direction to output
+                    val dir = gpioPath.resolve("gpio$linuxGpio").resolve("direction")
+                    Files.writeString(dir, "out")
+                    // successfully set direction to output
+                    inited = true
+                    valuepath = gpioPath.resolve("gpio$linuxGpio").resolve("value")
+                    logger.info("GPIO $name GPIO $linuxGpio already exists as output")
+                } catch (e : Exception){
+                    // failed to set direction to output, log error
+                    logger.error("Failed to set existing GPIO $name GPIO $linuxGpio as output: ${e.message}")
+                }
+
+            } else {
+                // not yet exists, export it
+                try{
+                    // export the GPIO pin
+                    Files.writeString(gpioExportPath, linuxGpio.toString())
+                    if (checkExists()){
+                        // successfully exported, now set direction to output
+                        val dir = gpioPath.resolve("gpio$linuxGpio").resolve("direction")
+                        Files.writeString(dir, "out")
+                        inited = true
+                        valuepath = gpioPath.resolve("gpio$linuxGpio").resolve("value")
+                        logger.info("Initialized GPIO $name GPIO $linuxGpio as output")
+                    } else {
+                        // failed to export, log error
+                        logger.error("GPIO $name GPIO $linuxGpio does not exist after export")
+                    }
+
+
+                } catch (e: Exception){
+                // failed to export GPIO pin, log error
+                    logger.error("Failed to export GPIO $name GPIO $linuxGpio: ${e.message}")
+                }
+            }
+
+
+        } else logger.error("DigitalOutput $name GPIO $linuxGpio not initialized: GPIO support not available")
+    }
+
+    fun checkExists(): Boolean{
+        return try {
+            val gpioPath = gpioPath.resolve("gpio$linuxGpio")
+            if (gpioPath.isDirectory() && gpioPath.toFile().exists()){
+                val dir = gpioPath.resolve("direction").toFile()
+                val value = gpioPath.resolve("value").toFile()
+                if (dir.exists() && value.exists()) {
+                    return dir.canWrite() && value.canWrite()
+                }
+            }
+            false
+        } catch (e: Exception) {
+            logger.error("Error checking if GPIO $linuxGpio exists: ${e.message}")
+            false
+        }
+    }
+
+    /**
+     * Release the GPIO pin by unexporting it.
+     */
+    fun release(){
+        if (inited){
+            try{
+                Files.writeString(gpioUnexportPath, linuxGpio.toString())
+                inited = false
+                valuepath = null
+            } catch (e : Exception){
+                logger.error("Failed to unexport GPIO $name GPIO ${e.message}")
+            }
+        }
+    }
+
+    /**
+     * Set Digital Output to ON
+     */
+    fun setON() : Boolean{
+        if (inited){
+            if (valuepath!=null){
+                try{
+                    Files.writeString(valuepath!!, if (activeHigh) "1" else "0")
+                    return true
+                } catch (e: Exception){
+                    logger.error("Failed to set GPIO $name GPIO $linuxGpio ON: ${e.message}")
+                }
+            }
+
+        }
+        return false
+    }
+
+    /**
+     * Set Digital Output to OFF
+     */
+    fun setOFF() : Boolean{
+        if (inited){
+            if (valuepath!=null){
+                try{
+                    Files.writeString(valuepath!!, if (activeHigh) "0" else "1")
+                    return true
+                } catch (e : Exception){
+                    logger.error("Failed to set GPIO $name GPIO $linuxGpio OFF: ${e.message}")
+                }
+            }
+        }
+        return false
+    }
+
+    /**
+     * Blink the Digital Output for a specified duration.
+     * @param ms The duration in milliseconds to keep the output ON before turning it OFF (default is 50ms).
+     */
+    fun Blink(ms: Long = 50){
+        if (inited){
+            CoroutineScope(Dispatchers.IO).launch {
+                setON()
+                delay(ms)
+                setOFF()
+            }
+        }
+    }
+
+
+
+}

src/sbc/NanopiDuo2.kt

@@ -0,0 +1,21 @@
+package sbc
+
+/**
+ * Nanopi Duo2 pin and GPIO mapping.
+ * Source : https://wiki.friendlyelec.com/wiki/index.php/NanoPi_Duo2
+ */
+@Suppress("unused")
+enum class NanopiDuo2(val pin: Int, val linuxGpio: Int) {
+    IRRX(9,363),
+    PG11(11,203),
+    RXD(2,5),
+    TXD(4,4),
+    SCL(8,11),
+    SDA(10,12),
+    CS(12,13),
+    CLK(14,14),
+    MISO(16,16),
+    MOSI(18,15),
+    RX1(20,199),
+    TX1(22,198)
+}

src/sbc/RaspberryPi4.kt

@@ -0,0 +1,39 @@
+package sbc
+
+/**
+ * Raspberry Pi 4 pin and GPIO mapping.
+ * Source : https://pinout.xyz/#
+ */
+@Suppress("unused")
+enum class RaspberryPi4(val pin: Int, val linuxGpio: Int, val alias:String? = null) {
+    GPIO2(3, 2, "SDA1"),
+    GPIO3(5, 3, "SCL1"),
+    GPIO4(7, 4, "GPCLK0"),
+    GPIO17(11, 17),
+    GPIO27(13, 27),
+    GPIO10(19, 10, "MOSI"),
+    GPIO9(21, 9, "MISO"),
+    GPIO11(23, 11, "SCLK"),
+    GPIO0(27, 0,"EEPROM SDA"),
+    GPIO5(29, 5),
+    GPIO6(31, 6),
+    GPIO13(33, 13,"PWM1"),
+    GPIO19(35, 19, "PCM FS"),
+    GPIO26(37, 26),
+
+    GPIO14(8, 14, "TXD"),
+    GPIO15(10, 15, "RXD"),
+    GPIO18(12, 18, "PCM CLK"),
+    GPIO23(16, 23),
+    GPIO24(18, 24),
+    GPIO25(22, 25),
+    GPIO8(24, 8,"SPI CE0"),
+    GPIO7(26, 7, "SPI CE1"),
+    GPIO1(28, 1, "EEPROM SCL"),
+    GPIO12(32, 12, "PWM0"),
+    GPIO16(36, 16),
+    GPIO20(38, 20,"PCM DIN"),
+    GPIO21(40, 21, "PCM DOUT"),;
+
+
+}

src/sbc/SbcInfo.kt

@@ -0,0 +1,300 @@
+package sbc
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import org.slf4j.LoggerFactory
+import somecodes.Codes.Companion.isLinux
+import java.io.File
+import java.util.function.Consumer
+import kotlin.io.path.Path
+import kotlin.io.path.exists
+import kotlin.io.path.readText
+
+/**
+ * get SBC Information
+ */
+@Suppress("unused")
+class SbcInfo {
+    private val logger = LoggerFactory.getLogger("SbcInfo")
+
+    /**
+     * Get CPU information from /proc/cpuinfo on Linux systems.
+     * @return cpuinfo data class containing core count, hardware model, and serial number.
+     * Returns null if the platform is not Linux or if an error occurs while reading the file
+     */
+    fun getCpuInfo(): cpuinfo? {
+        return try {
+            if (isLinux()) {
+                val lines = File("/proc/cpuinfo").readLines()
+                if (lines.isNotEmpty()) {
+                    val core = lines.count { it.startsWith("processor") }
+                    val hardware =
+                        lines.firstOrNull { it.startsWith("Hardware") }?.substringAfter(":")?.trim() ?: "Unknown"
+                    val serialNumber =
+                        lines.firstOrNull { it.startsWith("Serial") }?.substringAfter(":")?.trim() ?: "Unknown"
+                    cpuinfo(core, hardware, serialNumber)
+                } else {
+                    logger.error("No CPU info found in /proc/cpuinfo")
+                    null
+                }
+
+            } else {
+                logger.error("Platform is not Linux, cannot get CPU info")
+                null
+            }
+        } catch (e: Exception) {
+            logger.error("Error getting CPU info: ${e.message}")
+            null
+        }
+
+    }
+
+    /**
+     * Get memory information from /proc/meminfo on Linux systems.
+     * @return meminfo data class containing total, free, available memory, buffers, cached memory, and swap info.
+     * Returns null if the platform is not Linux or if an error occurs while reading the file
+     */
+    fun getMemInfo(): meminfo? {
+        return try {
+            if (isLinux()) {
+                val memInfoFile = File("/proc/meminfo")
+                if (memInfoFile.exists()) {
+                    val lines = memInfoFile.readLines()
+                    val totalMem =
+                        lines.firstOrNull { it.startsWith("MemTotal:") }?.substringAfter(":")?.trim()?.split(" ")
+                            ?.first()?.toLongOrNull() ?: 0L
+                    val freeMem =
+                        lines.firstOrNull { it.startsWith("MemFree:") }?.substringAfter(":")?.trim()?.split(" ")
+                            ?.first()?.toLongOrNull() ?: 0L
+                    val availableMem =
+                        lines.firstOrNull { it.startsWith("MemAvailable:") }?.substringAfter(":")?.trim()?.split(" ")
+                            ?.first()?.toLongOrNull() ?: 0L
+                    val buffers =
+                        lines.firstOrNull { it.startsWith("Buffers:") }?.substringAfter(":")?.trim()?.split(" ")
+                            ?.first()?.toLongOrNull() ?: 0L
+                    val cached =
+                        lines.firstOrNull { it.startsWith("Cached:") }?.substringAfter(":")?.trim()?.split(" ")?.first()
+                            ?.toLongOrNull() ?: 0L
+                    val swapTotal =
+                        lines.firstOrNull { it.startsWith("SwapTotal:") }?.substringAfter(":")?.trim()?.split(" ")
+                            ?.first()?.toLongOrNull() ?: 0L
+                    val swapFree = lines.firstOrNull { it.startsWith("SwapFree:") }
+                    meminfo(
+                        totalMem,
+                        freeMem,
+                        availableMem,
+                        buffers,
+                        cached,
+                        swapTotal,
+                        swapFree?.substringAfter(":")?.trim()?.split(" ")?.first()?.toLongOrNull() ?: 0L
+                    )
+                } else {
+                    logger.error("/proc/meminfo does not exist")
+                    null
+                }
+            } else {
+                logger.error("Platform is not Linux, cannot get memory info")
+                null
+            }
+        } catch (e: Exception) {
+            logger.error("Error getting memory info: ${e.message}")
+            null
+        }
+    }
+
+    /**
+     * Get CPU utilization percentage for each CPU core.
+     * @param percent Consumer that accepts an array of pairs containing CPU core names and their utilization percentages.
+     * This function runs in a coroutine and retrieves CPU usage from /proc/stat on Linux systems.
+     */
+    fun getCpuUtilization(percent: Consumer<Array<Pair<String, Double>>>) {
+        if (isLinux()) {
+            CoroutineScope(Dispatchers.Default).launch {
+                val map1 = HashMap<String, cpustat>()
+                val map2 = HashMap<String, cpustat>()
+                val s1 = File("/proc/stat").readLines().filter { it.startsWith("cpu") }
+                s1.forEach {
+                    val match = cpustat.regex.find(it)
+                    if (match != null) {
+                        val parts = match.groupValues
+                        if (parts.size >= 11) {
+                            val first = cpustat(
+                                user = parts[2].toLong(),
+                                nice = parts[3].toLong(),
+                                system = parts[4].toLong(),
+                                idle = parts[5].toLong(),
+                                iowait = parts[6].toLong(),
+                                irq = parts[7].toLong(),
+                                softirq = parts[8].toLong(),
+                                steal = parts[9].toLong(),
+                                guest = parts[10].toLongOrNull() ?: 0L,
+                                guestNice = parts.getOrNull(11)?.toLongOrNull() ?: 0L
+                            )
+                            map1[parts[1].trim()] = first
+                        }
+                    }
+                }
+                delay(1000) // Wait for 1 second to get a new snapshot
+                val s2 = File("/proc/stat").readLines().filter { it.startsWith("cpu") }
+                s2.forEach {
+                    val match = cpustat.regex.find(it)
+                    if (match != null) {
+                        val parts = match.groupValues
+                        if (parts.size >= 11) {
+                            val second = cpustat(
+                                user = parts[2].toLong(),
+                                nice = parts[3].toLong(),
+                                system = parts[4].toLong(),
+                                idle = parts[5].toLong(),
+                                iowait = parts[6].toLong(),
+                                irq = parts[7].toLong(),
+                                softirq = parts[8].toLong(),
+                                steal = parts[9].toLong(),
+                                guest = parts[10].toLongOrNull() ?: 0L,
+                                guestNice = parts.getOrNull(11)?.toLongOrNull() ?: 0L
+                            )
+                            map2[parts[1].trim()] = second
+                        }
+                    }
+                }
+
+                // compare s1 and s2
+                val result = ArrayList<Pair<String, Double>>()
+                map1.forEach {
+                    val key = it.key
+                    val firstStat = it.value
+                    val secondStat = map2[key]
+                    if (secondStat != null) {
+                        val usage = secondStat.cpuUsage(firstStat)
+                        result.add(Pair(key, usage))
+                    }
+                }
+                percent.accept(result.toTypedArray())
+            }
+        } else {
+            logger.error("Platform is not Linux, cannot get CPU utilization")
+            percent.accept(arrayOf(Pair("N/A", 0.0)))
+        }
+    }
+
+    /**
+     * Get network status from /proc/net/dev on Linux systems.
+     * @return List of netdev data class containing network device name, RX and TX statistics.
+     * Returns null if the platform is not Linux or if an error occurs while reading the file
+     */
+    fun getNetworkStatus(): List<netdev>? {
+        return try {
+            if (isLinux()) {
+                val netdevFile = File("/proc/net/dev")
+                if (netdevFile.exists()) {
+                    val lines = netdevFile.readLines().drop(2) // Skip the first two header lines
+                    val regex = netdev.regex
+                    val devices = lines.mapNotNull { line ->
+                        val match = regex.find(line)
+                        if (match != null) {
+                            val parts = match.groupValues
+                            val name = parts[1].trim().removeSuffix(":")
+                            val rx = devstat(
+                                Bytes = parts[2].toLong(),
+                                Packets = parts[3].toLong(),
+                                Errors = parts[4].toLong(),
+                                Drops = parts[5].toLong(),
+                                Fifo = parts[6].toLong(),
+                                Frame = parts[7].toLong(),
+                                Compressed = parts[8].toLong(),
+                                Multicast = parts[9].toLong()
+                            )
+                            val tx = devstat(
+                                Bytes = parts[10].toLong(),
+                                Packets = parts[11].toLong(),
+                                Errors = parts[12].toLong(),
+                                Drops = parts[13].toLong(),
+                                Fifo = parts[14].toLong(),
+                                Frame = parts[15].toLong(),
+                                Compressed = parts[16].toLong(),
+                                Multicast = parts[17].toLong()
+                            )
+                            netdev(name, rx, tx)
+                        } else {
+                            null
+                        }
+                    }
+                    devices
+                } else {
+                    logger.error("/proc/net/dev does not exist")
+                    null
+                }
+            } else {
+                logger.error("Platform is not Linux, cannot get network status")
+                null
+            }
+        } catch (e: Exception) {
+            logger.error("Error getting network status: ${e.message}")
+            null
+        }
+    }
+
+    /**
+     * Get network transfer speed for each network device.
+     * @param callback Consumer that accepts a map where keys are network device names and values are
+     * pairs of RX and TX bytes difference within a 1-second interval.
+     * This function runs in a coroutine and retrieves network statistics from /proc/net/dev on Linux
+     */
+    fun getNetworkTransferSpeed(callback: Consumer<Map<String, Pair<Long, Long>>>) {
+        if (isLinux()) {
+            CoroutineScope(Dispatchers.Default).launch {
+                val netdevs = getNetworkStatus()
+                if (netdevs != null) {
+                    val speedMap = netdevs.associate {
+                        it.name to Pair(it.RX.Bytes, it.TX.Bytes)
+                    }
+
+                    delay(1000) // Wait for 1 second to get a new snapshot
+
+                    val newNetdevs = getNetworkStatus()
+                    if (newNetdevs != null) {
+                        val newSpeedMap = newNetdevs.associate {
+                            it.name to Pair(it.RX.Bytes, it.TX.Bytes)
+                        }
+
+                        val resultMap = mutableMapOf<String, Pair<Long, Long>>()
+                        speedMap.forEach { (name, oldSpeed) ->
+                            val newSpeed = newSpeedMap[name]
+                            if (newSpeed != null) {
+                                val rxDiff = newSpeed.first - oldSpeed.first
+                                val txDiff = newSpeed.second - oldSpeed.second
+                                resultMap[name] = Pair(rxDiff, txDiff)
+                            }
+                        }
+                        callback.accept(resultMap)
+
+                    } else callback.accept(emptyMap())
+                }
+            }
+        } else {
+            logger.error("Platform is not Linux, cannot get network transfer speed")
+            callback.accept(emptyMap())
+        }
+    }
+
+    /**
+     * Get CPU Thermal information from /sys/class/thermal/thermal_zone0/temp on Linux systems.
+     * @return CPU temperature in degrees Celsius. Returns 0.0 if the platform is not Linux or if an error occurs while reading the file.
+     */
+    fun getCPUThermal(): Double {
+        return try{
+            if (isLinux()){
+                val p = Path("/sys/class/thermal/thermal_zone0/temp")
+                if (p.exists()) {
+                    val vv = p.readText().trim().toDouble()
+                    val tempCelsius = vv / 1000.0 // Convert from millidegrees Celsius to degrees Celsius
+                    (tempCelsius*10).toInt() / 10.0   // Round to 1 decimal places
+                } else throw Exception("/sys/class/thermal/thermal_zone0/temp does not exist")
+            } else throw Exception("Platform is not Linux, cannot get CPU thermal info")
+        } catch (_ : Exception) {
+            0.0
+        }
+    }
+}

src/sbc/cpuinfo.kt

@@ -0,0 +1,3 @@
+package sbc
+
+data class cpuinfo(val core: Int, val hardware: String, val serialNumber: String)

src/sbc/cpustat.kt

@@ -0,0 +1,49 @@
+package sbc
+
+/**
+ * Data class representing CPU statistics.
+ * @property user Time spent in user mode.
+ * @property nice Time spent in user mode with low priority (nice).
+ * @property system Time spent in system mode.
+ * @property idle Time spent in idle mode.
+ * @property iowait Time spent waiting for I/O operations to complete.
+ * @property irq Time spent servicing hardware interrupts.
+ * @property softirq Time spent servicing software interrupts.
+ * @property steal Time spent in involuntary wait by virtual CPUs.
+ * @property guest Time spent running a virtual CPU for guest operating systems.
+ * @property guestNice Time spent running a virtual CPU for guest operating systems with low priority (nice).
+ */
+@Suppress("unused")
+class cpustat(val user: Long, val nice: Long, val system: Long, val idle: Long, val iowait: Long, val irq: Long, val softirq: Long, val steal: Long, val guest: Long, val guestNice: Long) {
+    companion object{
+        val regex = Regex("""cpu(\d?)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)""")
+    }
+
+    override fun toString(): String {
+        return "CPU Stat(user=$user, nice=$nice, system=$system, idle=$idle, iowait=$iowait, irq=$irq, softirq=$softirq)"
+    }
+
+    fun  total(): Long {
+        return user + nice + system + idle + iowait + irq + softirq + steal + guest + guestNice
+    }
+
+    fun idle(): Long {
+        return idle + iowait
+    }
+
+    /**
+     * Calculate CPU usage percentage based on the current and previous cpustat instances.
+     * @param previous The previous cpustat instance to compare against.
+     * @return CPU usage percentage as a Double, rounded to one decimal place.
+     */
+    fun cpuUsage(previous: cpustat): Double {
+        val totalDiff = total() - previous.total()
+        if (totalDiff < 0L) return 0.0 // Avoid division by zero
+        val idleDiff = idle() - previous.idle()
+        if (idleDiff < 0L) return 0.0 // Avoid negative idle difference
+        return (1.0*(totalDiff - idleDiff) / totalDiff * 100.0).let {
+            val x = (it * 10).toInt()
+            x/10.0
+        }
+    }
+}

src/sbc/devstat.kt

@@ -0,0 +1,5 @@
+package sbc
+
+data class devstat(val Bytes: Long, val Packets: Long, val Errors: Long, val Drops: Long, val Fifo: Long, val Frame: Long, val Compressed: Long, val Multicast: Long)
+
+

src/sbc/meminfo.kt

@@ -0,0 +1,76 @@
+package sbc
+
+/**
+ * Memory Information data class from /proc/meminfo on Linux systems.
+ * all values are in kilobytes (KB).
+ * @property MemTotal Total usable RAM (i.e., physical RAM minus a few reserved bits and the kernel binary code).
+ * @property MemFree The amount of physical RAM, in kilobytes, left unused by the system.
+ * @property MemAvailable An estimate of how much memory is available for starting new applications, without swapping.
+ * @property Buffers The amount of memory, in kilobytes, used by kernel buffers.
+ * @property Cached The amount of memory, in kilobytes, used by the page cache and slabs.
+ * @property SwapTotal Total amount of swap space available, in kilobytes.
+ * @property SwapFree The amount of swap space that is currently unused, in kilobytes.
+ */
+@Suppress("unused")
+class meminfo(val MemTotal: Long, val MemFree: Long, val MemAvailable: Long, val Buffers: Long, val Cached: Long, val SwapTotal: Long, val SwapFree: Long) {
+    companion object{
+        private const val MB_Threshold = 1024.0
+        private const val GB_Threshold = 1024.0 * MB_Threshold
+
+        /**
+         * Converts a memory value in kilobytes to a human-readable string.
+         * @param value The memory value in kilobytes.
+         * @return A string representation of the memory value in GB, MB, or KB, and round to two decimal places.
+         * For example, "1.50 GB", "512 MB", or "256 KB
+         */
+        fun toText(value: Long) : String {
+            return when {
+                value >= 1024 * 1024 -> "${"%.2f".format(value / GB_Threshold)} GB"
+                value >= 1024 -> "${"%.2f".format(value / MB_Threshold)} MB"
+                else -> "$value KB"
+            }
+        }
+    }
+
+    override fun toString(): String {
+        return "MemTotal=${toText(MemTotal)}, MemFree=${toText(MemFree)}, MemAvailable=${toText(MemAvailable)}, Buffers=${toText(Buffers)}, Cached=${toText(Cached)}, SwapTotal=${toText(SwapTotal)}, SwapFree=${toText(SwapFree)}, "
+    }
+
+    /**
+     * Calculates the used memory in kilobytes.
+     * @return The amount of used memory in kilobytes.
+     */
+    fun MemUsed(): Long {
+        return MemTotal - MemFree
+    }
+
+    /**
+     * Calculates the percentage of memory used.
+     * @return The percentage of memory used, as a double, rounded to two decimal places.
+     */
+    fun percentUsed(): Double {
+        return if (MemTotal > 0) {
+            ((1.0 * MemUsed() / MemTotal) * 100.0).let {
+                val x = (it * 100).toInt()
+                x / 100.0
+            }
+        } else {
+            0.0
+        }
+    }
+
+    /**
+     * Calculates the percentage of memory available.
+     * @return The percentage of memory available, as a double, rounded to two decimal places.
+     */
+    fun percentFree(): Double {
+        return if (MemTotal > 0) {
+            ((1.0 * MemFree / MemTotal) * 100.0).let {
+                val x = (it * 100).toInt()
+                x/ 100.0
+            }
+        } else {
+            0.0
+        }
+    }
+}

src/sbc/netdev.kt

@@ -0,0 +1,28 @@
+package sbc
+
+class netdev( val name: String,val RX: devstat, val TX: devstat) {
+
+    companion object{
+        val regex = Regex("""\s?(\S+):\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)""")
+        private const val KB_Size = 1024.0
+        private const val MB_Size = KB_Size * 1024.0
+        private const val GB_Size = MB_Size * 1024.0
+
+        /**
+         * Converts a long value to a human-readable text format.
+         * @param value The long value to convert.
+         * @return A string representation of the value, formatted with appropriate units.
+         * The value is formatted in bytes, kilobytes, megabytes, or gigabytes, and rounded to one decimal place.
+         */
+        fun toText(value: Long): String {
+            return when {
+                value >= 1024 * 1024 * 1024 -> "${"%.1f".format(value / (GB_Size))} GB"
+                value >= 1024 * 1024 -> "${"%.1f".format(value / (MB_Size))} MB"
+                value >= 1024 -> "${"%.1f".format(value / KB_Size)} KB"
+                else -> "$value B"
+            }
+        }
+    }
+
+
+}

src/somecodes/Codes.kt

@@ -1,6 +1,9 @@
 package somecodes
 
+import com.sun.jna.Platform
+import org.slf4j.LoggerFactory
 import java.io.File
+import java.nio.file.Path
 import kotlin.io.path.Path
 
 @Suppress("unused")
@@ -8,16 +11,35 @@ class Codes {
 
     companion object{
         val audioFilePath = Path(System.getProperty("user.dir"), "audiofile")
+        val gpioPath : Path = Path("/sys/class/gpio")
+        val gpioExportPath : Path = gpioPath.resolve("export")
+        val gpioUnexportPath : Path = gpioPath.resolve("unexport")
+        private val logger = LoggerFactory.getLogger("Codes")
         private val validAudioExtensions = setOf("wav", "mp3")
-        private val KB_size = 1024 // 1 KB = 1024 bytes
+        private const val KB_size = 1024.0 // 1 KB = 1024 bytes
-        private val MB_size = 1024 * KB_size // 1 MB = 1024 KB
+        private const val MB_size = 1024.0 * KB_size // 1 MB = 1024 KB
-        private val GB_size = 1024 * MB_size // 1 GB = 1024 MB
+        private const val GB_size = 1024.0 * MB_size // 1 GB = 1024 MB
+
+        fun isLinux() : Boolean {
+            return Platform.isLinux()
+        }
+
+        fun haveGpioSupport() : Boolean {
+            if (Platform.isLinux()){
+                if (gpioExportPath.toFile().exists() && gpioUnexportPath.toFile().exists()) {
+                    if (gpioExportPath.toFile().canWrite() && gpioUnexportPath.toFile().canWrite()) {
+                        return true
+                    } else logger.error("$gpioExportPath or $gpioUnexportPath is not writable")
+                } else logger.error("$gpioExportPath or $gpioUnexportPath does not exist")
+            } else logger.error("Platform is not Linux, GPIO support is not available")
+            return false
+        }
 
         fun SizeToString(size: Long) : String {
             return when {
-                size >= GB_size -> String.format("%.2f GB", size.toDouble() / GB_size)
+                size >= GB_size -> String.format("%.2f GB", size / GB_size)
-                size >= MB_size -> String.format("%.2f MB", size.toDouble() / MB_size)
+                size >= MB_size -> String.format("%.2f MB", size / MB_size)
-                size >= KB_size -> String.format("%.2f KB", size.toDouble() / KB_size)
+                size >= KB_size -> String.format("%.2f KB", size / KB_size)
                 else -> "$size bytes"
             }
         }

src/web/webApp.java

@@ -35,7 +35,7 @@ public class webApp {
         }
         app = Javalin.create(config -> {
             config.useVirtualThreads = true; // Enable virtual threads for better performance
-            config.staticFiles.add("/");
+            config.staticFiles.add("/webpage");
             config.router.apiBuilder(()->{
                 path("/", () -> get(ctx -> {
                     if (ctx.sessionAttribute("user") == null) {

src/zello/ZelloClient.kt

@@ -128,7 +128,7 @@ class ZelloClient(val address : URI, val username: String, val password: String,
 
             @Suppress("UNCHECKED_CAST")
             override fun onMessage(message: String?) {
-                logger.info("Message received: $message")
+                //logger.info("Message received: $message")
                 val jsnode = mapper.readTree(message)
                 if (jsnode["seq"] != null) {
                     when(val seq = jsnode.get("seq").asInt()){
@@ -229,19 +229,6 @@ class ZelloClient(val address : URI, val username: String, val password: String,
                 isOnline = false
                 currentChannel = null
 
-
-                //Revisi 06/08/2025 : Change to Coroutines
-//                val thread = Thread {
-//                    try {
-//                        Thread.sleep(10000)
-//                        connect()
-//                    } catch (e: InterruptedException) {
-//                        logger.error("Reconnection interrupted: ${e.message}")
-//                    }
-//                }
-//                thread.name= "ZelloClient-ReconnectThread"
-//                thread.isDaemon = true
-//                thread.start()
             }
 
             override fun onError(ex: Exception?) {