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simple_connect.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Bluetooth N76 / GA5WB / UV-Pro Communication</title>
<style>
body {
font-family: Arial, sans-serif;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
margin: 0;
}
#log {
width: 80%;
height: 200px;
border: 1px solid #ccc;
padding: 10px;
margin-top: 20px;
overflow-y: scroll;
white-space: pre-wrap;
background-color: #f9f9f9;
}
#aprsBtn {
margin-top: 20px;
padding: 10px 20px;
background-color: #4caf50;
color: white;
border: none;
cursor: pointer;
}
#aprsBtn:disabled {
background-color: #aaa;
}
#channelBtn {
margin-top: 20px;
padding: 10px 20px;
background-color: #4caf50;
color: white;
border: none;
cursor: pointer;
}
#channelBtn:disabled {
background-color: #aaa;
}
</style>
</head>
<body>
<h1>Bluetooth N76 / GA5WB / UV-Pro Communication</h1>
<h3>
THIS IS SUPER EXPERIMENTAL AND MIGHT WRECK YOUR DEVICE. USE AT YOUR OWN
RISK
</h3>
<button id="connectBtn">Connect to Bluetooth Device</button>
<div id="log"></div>
<button id="aprsBtn" disabled>Enable APRS reports</button>
<button id="channelBtn" disabled>Read settings of channel 1</button>
<script>
let port;
let reader;
let writer;
const logElement = document.getElementById("log");
const connectBtn = document.getElementById("connectBtn");
const aprsBtn = document.getElementById("aprsBtn");
const channelBtn = document.getElementById("channelBtn");
const inputMessage = document.getElementById("inputMessage");
function log(data) {
logElement.innerText += data + "\n";
logElement.scrollTop = logElement.scrollHeight;
}
function formatReceivedData(value) {
let hexString = "0x";
let decodableText = "";
// Convert value to Uint8Array if it's not already
const byteArray = new Uint8Array(value);
for (let byte of byteArray) {
// Convert each byte to a hex string
hexString += byte.toString(16).padStart(2, "0") + ":";
// Check if byte is a printable ASCII character (between 32 and 126)
if (byte >= 32 && byte <= 126) {
decodableText += String.fromCharCode(byte);
} else {
decodableText += "."; // Use dot for non-printable characters
}
}
// Return the formatted string: hex codes and decodable text
return `Received Hex: ${hexString.trim()} | Text: ${decodableText}`;
}
// Connect to a serial device
connectBtn.addEventListener("click", async () => {
try {
// Request a serial port and open it
port = await navigator.serial.requestPort();
await port.open({ baudRate: 9600 });
log("Connected to Serial Device");
connectBtn.disabled = true;
aprsBtn.disabled = false;
channelBtn.disabled = false;
// Set up reader to listen for incoming data
reader = port.readable.getReader();
// Start reading data
readData();
} catch (error) {
log("Error: " + error);
}
});
// Read data from the serial port
async function readData() {
while (true) {
const { value, done } = await reader.read();
if (done) {
// Allow the serial port to be closed cleanly
log("Disconnected from device");
break;
}
if (value) {
log(formatReceivedData(value));
}
}
}
// Send data to the serial device
aprsBtn.addEventListener("click", async () => {
if (port && port.writable) {
const byteArray = new Uint8Array([
0xff, 0x01, 0x00, 0x01, 0x00, 0x02, 0x00, 0x06, 0x01,
]);
const writer = port.writable.getWriter();
// Send the byte array to the device
await writer.write(byteArray);
log(
"Sent: " +
Array.from(byteArray)
.map((byte) => "0x" + byte.toString(16).padStart(2, "0"))
.join(" ")
);
writer.releaseLock();
}
});
channelBtn.addEventListener("click", async () => {
if (port && port.writable) {
const byteArray = new Uint8Array([
0xff, 0x01, 0x00, 0x01, 0x00, 0x02, 0x00, 0x0d, 0x00,
]);
const writer = port.writable.getWriter();
// Send the byte array to the device
await writer.write(byteArray);
log(
"Sent: " +
Array.from(byteArray)
.map((byte) => "0x" + byte.toString(16).padStart(2, "0"))
.join(" ")
);
writer.releaseLock();
}
});
</script>
</body>
</html>