mirror of https://github.com/espruino/BangleApps
117 lines
4.0 KiB
JavaScript
117 lines
4.0 KiB
JavaScript
var device;
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var gatt;
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var service;
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var characteristic;
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// on/off commands
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// Channel 1 ON: A00101A2
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// Channel 1 OFF: A00100A1
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// Channel 2 ON: A00201A3
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// Channel 2 OFF: A00200A2
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// Channel 3 ON: A00301A4
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// Channel 3 OFF: A00300A3
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// Channel 4 ON: A00401A5
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// Channel 4 OFF: A00400A4
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var cmds = [{ on: new Uint8Array([0xa0, 0x01, 0x01, 0xa2]),
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off: new Uint8Array([0xa0, 0x01, 0x00, 0xa1]) },
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{ on: new Uint8Array([0xa0, 0x02, 0x01, 0xa3]),
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off: new Uint8Array([0xa0, 0x02, 0x00, 0xa2]) },
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{ on: new Uint8Array([0xa0, 0x03, 0x01, 0xa4]),
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off: new Uint8Array([0xa0, 0x03, 0x00, 0xa3]) },
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{ on: new Uint8Array([0xa0, 0x04, 0x01, 0xa5]),
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off: new Uint8Array([0xa0, 0x04, 0x00, 0xa4]) }];
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const button_w = 100;
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const button_h = 36;
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const button_r = button_h/2-4;
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const button_sp = 46;
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var n_channels = 4;
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var channel = 0;
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var channel_state = [];
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function drawButton(x, y, state) {
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if (state) g.setColor(0.2, 0.2, 0.95);
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else g.setColor(0.5, 0.5, 0.5);
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g.fillCircle(x+button_h/2, y+button_h/2, button_h/2).
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fillRect(x+button_h/2, y, x+button_w-button_h/2, y+button_h).
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fillCircle(x+button_w-button_h/2, y+button_h/2, button_h/2);
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g.setColor(0.85, 0.85, 0.85);
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if (state)
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g.fillCircle(x+button_w-button_h/2, y+button_h/2, button_r);
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else
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g.fillCircle(x+button_h/2, y+button_h/2, button_r);
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g.flip();
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}
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function setup_screen() {
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g.clearRect(0, 60, g.getWidth()-1, g.getHeight()-1);
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for (var i=0; i<4; ++i) {
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g.setFontVector(22).setFontAlign(-1, 0, 0).setColor(0xffff).drawString("Ch"+String(i+1), 16, 60+i*button_sp+button_h/2);
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drawButton((g.getWidth()-button_w)/2, 60+i*button_sp, channel_state[i]);
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}
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moveChannelFrame(channel, channel);
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}
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function parseDevice(d) {
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device = d;
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g.clearRect(0, 60, 239, 239).setFontAlign(0, 0, 0).setColor(0, 1, 0).drawString("Found device", 120, 120).flip();
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device.gatt.connect().then(function(ga) {
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gatt = ga;
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g.clearRect(0, 60, 239, 239).setFontAlign(0, 0, 0).setColor(0, 1, 0).drawString("Connected", 120, 120).flip();
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return gatt.getPrimaryService("FFE0");
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}).then(function(s) {
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service = s;
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return service.getCharacteristic("FFE1");
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}).then(function(c) {
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characteristic = c;
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console.log(c);
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return;
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}).then(function() {
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console.log("Done!");
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g.clearRect(0, 60, 239, 239).setColor(1, 1, 1).flip();
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setup_app();
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}).catch(function(e) {
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g.clearRect(0, 60, 239, 239).setColor(1, 0, 0).setFontAlign(0, 0, 0).drawString("ERROR"+e, 120, 120).flip();
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console.log(e);
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})}
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function connection_setup() {
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NRF.setScan();
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NRF.setScan(parseDevice, { filters: [{services:["FFE0"]}], timeout: 2000});
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g.clearRect(0, 60, 239, 239).setFontVector(18).setFontAlign(0, 0, 0).setColor(0, 1, 0);
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g.drawString("Scanning for relay...", 120, 120);
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}
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function moveChannelFrame(oldc, newc) {
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g.setColor(0).drawRect(8, 60+oldc*button_sp-4, g.getWidth()-8, 60+oldc*button_sp+button_h+4);
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g.setColor(0.9, 0.9, 0.9).drawRect(8, 60+newc*button_sp-4, g.getWidth()-8, 60+newc*button_sp+button_h+4);
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}
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function setup_app() {
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characteristic.readValue().then(function(r) {
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for (var i=0; i<r.buffer.length/4; ++i) channel_state.push(r.buffer[i*4+2]==1);
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}).then(setup_screen);
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Bangle.on('swipe', function(direction){
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switch(direction){
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case 1:
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drawButton((g.getWidth()-button_w)/2, 60+channel*button_sp, true);
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characteristic.writeValue(cmds[channel].on);
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break;
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case -1:
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drawButton((g.getWidth()-button_w)/2, 60+channel*button_sp, false);
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characteristic.writeValue(cmds[channel].off);
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break;
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}});
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setWatch(function() { var nc = channel-1; if (nc<0) nc = n_channels-1; moveChannelFrame(channel, nc); channel = nc; }, BTN1, {repeat:true, debounce:30});
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setWatch(function() { moveChannelFrame(channel, (channel+1)%n_channels); channel = (channel+1)%n_channels; }, BTN3, {repeat:true, debounce:30});
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}
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connection_setup();
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Bangle.loadWidgets();
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Bangle.drawWidgets();
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