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Webbluetooth #2

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Webbluetooth #2

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8052f68
fix for noble webbluetooth port
monteslu Feb 9, 2018
b6547e9
fix for noble webbluetooth port
monteslu Feb 9, 2018
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49 changes: 24 additions & 25 deletions daydream-node.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,91 +14,91 @@ var state = {};
function DaydreamController(){
noble.on('stateChange', function(state) {
if (state === 'poweredOn') {
noble.startScanning();
noble.startScanning(daydreamPrimaryServiceUuid);
} else {
noble.stopScanning();
}
});

noble.on('discover', function(peripheral){
if(peripheral.advertisement.localName === daydreamDeviceName || peripheral.id === daydreamDeviceId){
console.log('peripheral id: ' + peripheral.id + ' found');
console.log('Device name: ' + peripheral.advertisement.localName);
noble.stopScanning();
}

explore(peripheral);
});

function explore(peripheral){
peripheral.on('disconnect', function() {
process.exit(0);
});

peripheral.connect(function(error){
peripheral.discoverServices([daydreamPrimaryServiceUuid], function(error, services){
if(services.length > 0){
var primaryService = services[0];

primaryService.discoverCharacteristics([daydreamMainCharacteristicUuid], function(error, characteristics){
var mainCharacteristic = characteristics[0];
var mainCharacteristic = characteristics.filter(characteristic => characteristic.properties.includes('notify'))[0];

mainCharacteristic.on("data", function(data, isNotification){

// The following is based on the work by @mrdoob you can find here: https://github.com/mrdoob/daydream-controller.js/blob/master/DaydreamController.js
state.isClickDown = (data.readUInt8(18) & 0x1) > 0;
state.isAppDown = (data.readUInt8(18) & 0x4) > 0;
state.isHomeDown = (data.readUInt8(18) & 0x2) > 0;

state.isVolPlusDown = (data.readUInt8(18) & 0x10) > 0;
state.isVolMinusDown = (data.readUInt8(18) & 0x8) > 0;

state.time = ((data.readUInt8(0) & 0xFF) << 1 | (data.readUInt8(1) & 0x80) >> 7);

state.seq = (data.readUInt8(1) & 0x7C) >> 2;

state.xOri = (data.readUInt8(1) & 0x03) << 11 | (data.readUInt8(2) & 0xFF) << 3 | (data.readUInt8(3) & 0x80) >> 5;
state.xOri = (state.xOri << 19) >> 19;
state.xOri *= (2 * Math.PI / 4095.0);

state.yOri = (data.readUInt8(3) & 0x1F) << 8 | (data.readUInt8(4) & 0xFF);
state.yOri = (state.yOri << 19) >> 19;
state.yOri *= (2 * Math.PI / 4095.0);

state.zOri = (data.readUInt8(5) & 0xFF) << 5 | (data.readUInt8(6) & 0xF8) >> 3;
state.zOri = (state.zOri << 19) >> 19;
state.zOri *= (2 * Math.PI / 4095.0);

state.xAcc = (data.readUInt8(6) & 0x07) << 10 | (data.readUInt8(7) & 0xFF) << 2 | (data.readUInt8(8) & 0xC0) >> 6;
state.xAcc = (state.xAcc << 19) >> 19;
state.xAcc *= (8 * 9.8 / 4095.0);

state.yAcc = (data.readUInt8(8) & 0x3F) << 7 | (data.readUInt8(9) & 0xFE) >>> 1;
state.yAcc = (state.yAcc << 19) >> 19;
state.yAcc *= (8 * 9.8 / 4095.0);

state.zAcc = (data.readUInt8(9) & 0x01) << 12 | (data.readUInt8(10) & 0xFF) << 4 | (data.readUInt8(11) & 0xF0) >> 4;
state.zAcc = (state.zAcc << 19) >> 19;
state.zAcc *= (8 * 9.8 / 4095.0);

state.xGyro = ((data.readUInt8(11) & 0x0F) << 9 | (data.readUInt8(12) & 0xFF) << 1 | (data.readUInt8(13) & 0x80) >> 7);
state.xGyro = (state.xGyro << 19) >> 19;
state.xGyro *= (2048 / 180 * Math.PI / 4095.0);

state.yGyro = ((data.readUInt8(13) & 0x7F) << 6 | (data.readUInt8(14) & 0xFC) >> 2);
state.yGyro = (state.yGyro << 19) >> 19;
state.yGyro *= (2048 / 180 * Math.PI / 4095.0);

state.zGyro = ((data.readUInt8(14) & 0x03) << 11 | (data.readUInt8(15) & 0xFF) << 3 | (data.readUInt8(16) & 0xE0) >> 5);
state.zGyro = (state.zGyro << 19) >> 19;
state.zGyro *= (2048 / 180 * Math.PI / 4095.0);

state.xTouch = ((data.readUInt8(16) & 0x1F) << 3 | (data.readUInt8(17) & 0xE0) >> 5) / 255.0;
state.yTouch = ((data.readUInt8(17) & 0x1F) << 3 | (data.readUInt8(18) & 0xE0) >> 5) / 255.0;

onStateChangeCallback(state);
});

mainCharacteristic.subscribe(function(error) {
console.log('daydream controller notifications on');
});
Expand All @@ -109,7 +109,7 @@ function DaydreamController(){
}

function onStateChangeCallback(){}

return {
onStateChange: function ( callback ) {
onStateChangeCallback = callback;
Expand All @@ -120,4 +120,3 @@ function DaydreamController(){
module.exports = function(){
return DaydreamController();
}