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led.html
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led.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>Web Bluetooth</title>
<style>
@import url(https://fonts.googleapis.com/css?family=Open+Sans|Roboto:400,500,700,300);
body {
font-family: "Roboto";
}
div {
margin: 10px;
}
h1, h3 {
text-align: center;
}
ul {
margin-top: 10px;
margin-bottom: 30px;
font-size: 14px;
}
label {
display: inline-block;
width: 120px;
font-weight: 500;
}
input[type="text"] {
width: 220px;
padding: 5px;
}
button {
padding: 10px;
margin-right: 30px;
border: 1px solid white;
font-weight: 700;
box-shadow: 0px 0px 5px 2px rgba(0, 0, 0, 0.1);
}
#main {
max-width: 500px;
margin: 20px auto;
border: 1px solid #DDD;
padding: 20px;
box-shadow: 0px 0px 5px 1px rgba(0, 0, 0, 0.1);
}
.button-container {
margin: 0 auto;
width: 300px;
text-align: center;
}
#ledon, #ledoff {
color: white;
margin-top: 20px;
margin-bottom: 20px;
}
#ledon {
background-color: #006600;
}
#ledoff {
background-color: #cc0000;
}
</style>
<script>
// If we're running on a real web server (as opposed to localhost, which is whitelisted),
// then change the protocol to HTTPS.
// See https://goo.gl/lq4gCo for an explanation as to why this is needed for some features.
(function() {
var isLocalhost = !!(window.location.hostname === 'localhost' ||
// [::1] is the IPv6 localhost address.
window.location.hostname === '[::1]' ||
// 127.0.0.1/8 is considered localhost for IPv4.
window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/));
if (window.location.protocol === 'http:' && !isLocalhost) {
// Redirect to https: if we're currently using http: and we're not on localhost.
window.location.protocol = 'https:';
}
})();
window.addEventListener('error', function(error) {
if (ChromeSamples && ChromeSamples.setStatus) {
ChromeSamples.setStatus(error.message + ' (Nettleseren din støtter ikke Web Bluetooth.)');
error.preventDefault();
}
});
</script>
</head>
<body>
<div id="main">
<h1>LED-test</h1>
For å bruke Web Bluetooth til å styre LED på kit:
<ul>
<li>Last inn "Experimental-ble-app-blinky" på kitet</li>
<li>Åpne denne nettsiden i Chromium på Android L/M</li>
</ul>
<form>
<div><label for="service">Service: </label><input id="service" type="text" list="services" autofocus placeholder="Bluetooth Service" value="00001523-1212-efde-1523-785feabcd123"></div>
<div><label for="service">Characteristic: </label><input id="characteristic" type="text" list="characteristics" placeholder="Bluetooth Characteristic" value="00001525-1212-efde-1523-785feabcd123"></div>
<div><button id="connect" >Koble til enhet</button></div>
</form>
<div class="button-container">
<button id="ledon" onclick="ledOn()">Slå LED PÅ</button>
<button id="ledoff" onclick="ledOff()">Slå LED AV</button>
</div>
<script>
var ChromeSamples = {
log: function() {
var line = Array.prototype.slice.call(arguments).map(function(argument) {
return typeof argument === 'string' ? argument : JSON.stringify(argument);
}).join(' ');
document.querySelector('#log').textContent += line + '\n';
},
clearLog: function() {
document.querySelector('#log').textContent = '';
},
setStatus: function(status) {
document.querySelector('#status').textContent = status;
},
setContent: function(newContent) {
var content = document.querySelector('#content');
while(content.hasChildNodes()) {
content.removeChild(content.lastChild);
}
content.appendChild(newContent);
}
};
</script>
<h3>Logg</h3>
<div id="output" class="output">
<div id="content"></div>
<div id="status"></div>
<pre id="log"></pre>
</div>
<!-- // END OF MAIN -->
</div>
<script>
var myCharacteristic;
// Søker etter enheter
function onFormSubmit() {
'use strict';
let serviceUuid = document.getElementById('service').value;
if (serviceUuid.startsWith('0x')) {
serviceUuid = parseInt(serviceUuid, 16);
}
let characteristicUuid = document.getElementById('characteristic').value;
if (characteristicUuid.startsWith('0x')) {
characteristicUuid = parseInt(characteristicUuid, 16);
}
log('Søker etter enheter med valgt service og characteristic...');
navigator.bluetooth.requestDevice({filters: [{services: [serviceUuid]}]})
.then(device => device.connectGATT())
.then(server => server.getPrimaryService(serviceUuid))
.then(service => service.getCharacteristic(characteristicUuid))
.then(characteristic => {
myCharacteristic = characteristic;
log('> Tilkoblet enhet. LED kan nå styres.');
})
.catch(error => {
log('Argh! ' + error);
});
}
// Funksjon for å skru LED på
function ledOn() {
'use strict';
if(myCharacteristic) {
log('> Skrur LED på...');
let ledValue = new Uint8Array([1]);
myCharacteristic.writeValue(ledValue);
}
};
// Funksjon for å skru LED av
function ledOff() {
'use strict';
if(myCharacteristic) {
log('> Skrur LED av...');
let ledValue = new Uint8Array([0]);
myCharacteristic.writeValue(ledValue);
}
};
</script>
<script>
document.querySelector('form').addEventListener('submit', function(event) {
event.stopPropagation();
event.preventDefault();
if (!navigator.bluetooth) {
ChromeSamples.setStatus('Web Bluetooth API er ikke tilgjengelig.\n' +
'Husk å aktivere Web Bluetooth-flagget: chrome://flags');
} else {
ChromeSamples.clearLog();
onFormSubmit();
}
});
log = ChromeSamples.log;
</script>
</body>
</html>