Cycling: Initial commit
Joseph Paul
parent
bbd2cac110
commit
31d835dad5
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0.01: Initial version
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# Cycling
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> Displays data from a BLE Cycling Speed and Cadence sensor.
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*Fork of the CSCSensor app using the layout library and separate module for CSC functionality*
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The following data are displayed:
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- curent speed
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- moving time
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- average speed
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- maximum speed
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- trip distance
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- total distance
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Total distance is not stored on the Bangle, but instead is calculated from the CWR (cumulative wheel revolutions) reported by the sensor. This metric is, according to the BLE spec, a absolute value that persists throughout the lifetime of the sensor and never rolls over.
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**Cadence / Crank features are currently not implemented**
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# TODO
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* Settings: imperial/metric
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* Store circumference per device address
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* Sensor battery status
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* Implement crank events / show cadence
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* Bangle.js 1 compatibility
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# Development
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There is a "mock" version of the `blecsc` module, which can be used to test features in the emulator. Check `blecsc-emu.js` for usage.
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// UUID of the Bluetooth CSC Service
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const SERVICE_UUID = "1816";
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// UUID of the CSC measurement characteristic
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const MEASUREMENT_UUID = "2a5b";
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// Wheel revolution present bit mask
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const FLAGS_WREV_BM = 0x01;
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// Crank revolution present bit mask
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const FLAGS_CREV_BM = 0x02;
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/**
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* Fake BLECSC implementation for the emulator, where it's hard to test
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* with actual hardware. Generates "random" wheel events (no crank).
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*
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* To upload as a module, paste the entire file in the console using this
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* command: require("Storage").write("blecsc-emu",`<FILE CONTENT HERE>`);
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*/
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class BLECSCEmulator {
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constructor() {
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this.timeout = undefined;
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this.interval = 500;
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this.ccr = 0;
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this.lwt = 0;
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this.handlers = {
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// value
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// disconnect
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// wheelEvent
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// crankEvent
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};
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}
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getDeviceAddress() {
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return 'fa:ke:00:de:vi:ce';
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}
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/**
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* Callback for the GATT characteristicvaluechanged event.
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* Consumers must not call this method!
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*/
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onValue(event) {
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// Not interested in non-CSC characteristics
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if (event.target.uuid != "0x" + MEASUREMENT_UUID) return;
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// Notify the generic 'value' handler
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if (this.handlers.value) this.handlers.value(event);
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const flags = event.target.value.getUint8(0, true);
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// Notify the 'wheelEvent' handler
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if ((flags & FLAGS_WREV_BM) && this.handlers.wheelEvent) this.handlers.wheelEvent({
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cwr: event.target.value.getUint32(1, true), // cumulative wheel revolutions
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lwet: event.target.value.getUint16(5, true), // last wheel event time
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});
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// Notify the 'crankEvent' handler
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if ((flags & FLAGS_CREV_BM) && this.handlers.crankEvent) this.handlers.crankEvent({
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ccr: event.target.value.getUint16(7, true), // cumulative crank revolutions
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lcet: event.target.value.getUint16(9, true), // last crank event time
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});
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}
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/**
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* Register an event handler.
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*
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* @param {string} event value|disconnect
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* @param {function} handler handler function that receives the event as its first argument
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*/
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on(event, handler) {
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this.handlers[event] = handler;
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}
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fakeEvent() {
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this.interval = Math.max(50, Math.min(1000, this.interval + Math.random()*40-20));
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this.lwt = (this.lwt + this.interval) % 0x10000;
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this.ccr++;
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var buffer = new ArrayBuffer(8);
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var view = new DataView(buffer);
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view.setUint8(0, 0x01); // Wheel revolution data present bit
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view.setUint32(1, this.ccr, true); // Cumulative crank revolutions
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view.setUint16(5, this.lwt, true); // Last wheel event time
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this.onValue({
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target: {
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uuid: "0x2a5b",
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value: view,
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},
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});
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this.timeout = setTimeout(this.fakeEvent.bind(this), this.interval);
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}
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/**
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* Find and connect to a device which exposes the CSC service.
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*
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* @return {Promise}
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*/
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connect() {
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this.timeout = setTimeout(this.fakeEvent.bind(this), this.interval);
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return Promise.resolve(true);
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}
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/**
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* Disconnect the device.
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*/
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disconnect() {
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if (!this.timeout) return;
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clearTimeout(this.timeout);
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}
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}
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exports = BLECSCEmulator;
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const SERVICE_UUID = "1816";
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// UUID of the CSC measurement characteristic
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const MEASUREMENT_UUID = "2a5b";
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// Wheel revolution present bit mask
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const FLAGS_WREV_BM = 0x01;
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// Crank revolution present bit mask
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const FLAGS_CREV_BM = 0x02;
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/**
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* This class communicates with a Bluetooth CSC peripherial using the Espruino NRF library.
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*
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* ## Usage:
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* 1. Register event handlers using the \`on(eventName, handlerFunction)\` method
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* You can subscribe to the \`wheelEvent\` and \`crankEvent\` events or you can
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* have raw characteristic values passed through using the \`value\` event.
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* 2. Search and connect to a BLE CSC peripherial by calling the \`connect()\` method
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* 3. To tear down the connection, call the \`disconnect()\` method
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*
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* ## Events
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* - \`wheelEvent\` - the peripharial sends a notification containing wheel event data
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* - \`crankEvent\` - the peripharial sends a notification containing crank event data
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* - \`value\` - the peripharial sends any CSC characteristic notification (including wheel & crank event)
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* - \`disconnect\` - the peripherial ends the connection or the connection is lost
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*
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* Each event can only have one handler. Any call to \`on()\` will
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* replace a previously registered handler for the same event.
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*/
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class BLECSC {
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constructor() {
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this.device = undefined;
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this.ccInterval = undefined;
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this.gatt = undefined;
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this.handlers = {
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// wheelEvent
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// crankEvent
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// value
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// disconnect
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};
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}
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getDeviceAddress() {
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if (!this.device || !this.device.id)
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return '00:00:00:00:00:00';
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return this.device.id.split(" ")[0];
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}
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checkConnection() {
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if (!this.device)
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console.log("no device");
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// else
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// console.log("rssi: " + this.device.rssi);
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}
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/**
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* Callback for the GATT characteristicvaluechanged event.
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* Consumers must not call this method!
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*/
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onValue(event) {
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// Not interested in non-CSC characteristics
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if (event.target.uuid != "0x" + MEASUREMENT_UUID) return;
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// Notify the generic 'value' handler
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if (this.handlers.value) this.handlers.value(event);
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const flags = event.target.value.getUint8(0, true);
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// Notify the 'wheelEvent' handler
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if ((flags & FLAGS_WREV_BM) && this.handlers.wheelEvent) this.handlers.wheelEvent({
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cwr: event.target.value.getUint32(1, true), // cumulative wheel revolutions
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lwet: event.target.value.getUint16(5, true), // last wheel event time
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});
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// Notify the 'crankEvent' handler
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if ((flags & FLAGS_CREV_BM) && this.handlers.crankEvent) this.handlers.crankEvent({
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ccr: event.target.value.getUint16(7, true), // cumulative crank revolutions
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lcet: event.target.value.getUint16(9, true), // last crank event time
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});
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}
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/**
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* Callback for the NRF disconnect event.
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* Consumers must not call this method!
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*/
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onDisconnect(event) {
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console.log("disconnected");
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if (this.ccInterval)
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clearInterval(this.ccInterval);
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if (!this.handlers.disconnect) return;
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this.handlers.disconnect(event);
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}
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/**
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* Register an event handler.
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*
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* @param {string} event wheelEvent|crankEvent|value|disconnect
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* @param {function} handler function that will receive the event as its first argument
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*/
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on(event, handler) {
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this.handlers[event] = handler;
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}
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/**
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* Find and connect to a device which exposes the CSC service.
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*
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* @return {Promise}
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*/
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connect() {
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// Register handler for the disconnect event to be passed throug
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NRF.on('disconnect', this.onDisconnect.bind(this));
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// Find a device, then get the CSC Service and subscribe to
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// notifications on the CSC Measurement characteristic.
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// NRF.setLowPowerConnection(true);
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return NRF.requestDevice({
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timeout: 5000,
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filters: [{ services: [SERVICE_UUID] }],
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}).then(device => {
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this.device = device;
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this.device.on('gattserverdisconnected', this.onDisconnect.bind(this));
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this.ccInterval = setInterval(this.checkConnection.bind(this), 2000);
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return device.gatt.connect();
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}).then(gatt => {
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this.gatt = gatt;
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return gatt.getPrimaryService(SERVICE_UUID);
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}).then(service => {
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return service.getCharacteristic(MEASUREMENT_UUID);
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}).then(characteristic => {
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characteristic.on('characteristicvaluechanged', this.onValue.bind(this));
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return characteristic.startNotifications();
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});
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}
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/**
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* Disconnect the device.
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*/
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disconnect() {
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if (this.ccInterval)
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clearInterval(this.ccInterval);
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if (!this.gatt) return;
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try {
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this.gatt.disconnect();
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} catch {
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//
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}
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}
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}
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exports = BLECSC;
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const Layout = require('Layout');
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const SETTINGS_FILE = 'cscsensor.json';
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const storage = require('Storage');
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const RECONNECT_TIMEOUT = 4000;
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const MAX_CONN_ATTEMPTS = 2;
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class CSCSensor {
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constructor(blecsc, display) {
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// Dependency injection
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this.blecsc = blecsc;
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this.display = display;
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// Load settings
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this.settings = storage.readJSON(SETTINGS_FILE, 1) || {};
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this.wheelCirc = (this.settings.wheelcirc || 2230) / 1000; // unit: m
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// CSC runtime variables
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this.movingTime = 0; // unit: s
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this.lastBangleTime = Date.now(); // unit: ms
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this.lwet = 0; // last wheel event time (unit: s/1024)
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this.cwr = -1; // cumulative wheel revolutions
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this.cwrTrip = 0; // wheel revolutions since trip start
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this.speed = 0; // unit: m/s
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this.maxSpeed = 0; // unit: m/s
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this.speedFailed = 0;
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// Other runtime variables
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this.connected = false;
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this.failedAttempts = 0;
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this.failed = false;
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// Layout configuration
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this.layout = 0;
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this.display.useMetricUnits(true);
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// this.display.useMetricUnits(!require("locale").speed(1).toString().endsWith("mph"));
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}
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onDisconnect(event) {
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console.log("disconnected ", event);
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this.connected = false;
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this.setLayout(0);
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this.display.setDeviceAddress("unknown");
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if (this.failedAttempts >= MAX_CONN_ATTEMPTS) {
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this.failed = true;
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this.display.setStatus("Connection failed after " + MAX_CONN_ATTEMPTS + " attempts.");
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} else {
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this.display.setStatus("Disconnected");
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setTimeout(this.connect.bind(this), RECONNECT_TIMEOUT);
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}
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}
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connect() {
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this.connected = false;
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this.setLayout(0);
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this.display.setStatus("Connecting...");
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console.log("Trying to connect to BLE CSC");
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// Hook up events
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this.blecsc.on('wheelEvent', this.onWheelEvent.bind(this));
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this.blecsc.on('disconnect', this.onDisconnect.bind(this));
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// Scan for BLE device and connect
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this.blecsc.connect()
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.then(function() {
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this.failedAttempts = 0;
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this.failed = false;
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this.connected = true;
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var addr = this.blecsc.getDeviceAddress();
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console.log("Connected to " + addr);
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this.display.setDeviceAddress(addr);
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this.display.setStatus("Connected");
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// Switch to speed screen in 2s
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setTimeout(function() {
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this.setLayout(1);
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this.updateScreen();
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}.bind(this), 2000);
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}.bind(this))
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.catch(function(e) {
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this.failedAttempts++;
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this.onDisconnect(e);
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}.bind(this));
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}
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disconnect() {
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this.blecsc.disconnect();
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this.connected = false;
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this.setLayout(0);
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this.display.setStatus("Disconnected")
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}
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setLayout(num) {
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this.layout = num;
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if (this.layout == 0) {
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this.display.updateLayout("status");
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} else if (this.layout == 1) {
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this.display.updateLayout("speed");
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} else if (this.layout == 2) {
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||||||
|
this.display.updateLayout("distance");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
reset() {
|
||||||
|
this.connected = false;
|
||||||
|
this.failed = false;
|
||||||
|
this.failedAttempts = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
interact(d) {
|
||||||
|
// Only interested in tap / center button
|
||||||
|
if (d) return;
|
||||||
|
|
||||||
|
// Reconnect in failed state
|
||||||
|
if (this.failed) {
|
||||||
|
this.reset();
|
||||||
|
this.connect();
|
||||||
|
} else if (this.connected) {
|
||||||
|
this.setLayout((this.layout + 1) % 3);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
updateScreen() {
|
||||||
|
var tripDist = this.cwrTrip * this.wheelCirc;
|
||||||
|
var avgSpeed = this.movingTime > 3 ? tripDist / this.movingTime : 0
|
||||||
|
|
||||||
|
this.display.setTotalDistance(this.cwr * this.wheelCirc);
|
||||||
|
this.display.setTripDistance(tripDist);
|
||||||
|
this.display.setSpeed(this.speed);
|
||||||
|
this.display.setAvg(avgSpeed);
|
||||||
|
this.display.setMax(this.maxSpeed);
|
||||||
|
this.display.setTime(Math.floor(this.movingTime));
|
||||||
|
}
|
||||||
|
|
||||||
|
onWheelEvent(event) {
|
||||||
|
// Calculate number of revolutions since last wheel event
|
||||||
|
var dRevs = (this.cwr > 0 ? event.cwr - this.cwr : 0);
|
||||||
|
this.cwr = event.cwr;
|
||||||
|
|
||||||
|
// Increment the trip revolutions counter
|
||||||
|
this.cwrTrip += dRevs;
|
||||||
|
|
||||||
|
// Calculate time delta since last wheel event
|
||||||
|
var dT = (event.lwet - this.lwet)/1024;
|
||||||
|
var now = Date.now();
|
||||||
|
var dBT = (now-this.lastBangleTime)/1000;
|
||||||
|
this.lastBangleTime = now;
|
||||||
|
if (dT<0) dT+=64; // wheel event time wraps every 64s
|
||||||
|
if (Math.abs(dT-dBT)>3) dT = dBT; // not sure about the reason for this
|
||||||
|
this.lwet = event.lwet;
|
||||||
|
|
||||||
|
// Recalculate current speed
|
||||||
|
if (dRevs>0 && dT>0) {
|
||||||
|
this.speed = dRevs * this.wheelCirc / dT;
|
||||||
|
this.speedFailed = 0;
|
||||||
|
this.movingTime += dT;
|
||||||
|
} else {
|
||||||
|
this.speedFailed++;
|
||||||
|
if (this.speedFailed>3) {
|
||||||
|
this.speed = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Update max speed
|
||||||
|
if (this.speed>this.maxSpeed
|
||||||
|
&& (this.movingTime>3 || this.speed<20)
|
||||||
|
&& this.speed<50
|
||||||
|
) this.maxSpeed = this.speed;
|
||||||
|
|
||||||
|
this.updateScreen();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class CSCDisplay {
|
||||||
|
constructor() {
|
||||||
|
this.metric = true;
|
||||||
|
this.fontLabel = "6x8";
|
||||||
|
this.fontMed = "15%";
|
||||||
|
this.fontLarge = "32%";
|
||||||
|
this.currentLayout = "status";
|
||||||
|
this.layouts = {};
|
||||||
|
this.layouts.speed = new Layout({
|
||||||
|
type: "v",
|
||||||
|
c: [
|
||||||
|
{
|
||||||
|
type: "h",
|
||||||
|
id: "speed_g",
|
||||||
|
fillx: 1,
|
||||||
|
filly: 1,
|
||||||
|
pad: 4,
|
||||||
|
bgCol: "#fff",
|
||||||
|
c: [
|
||||||
|
{type: undefined, width: 32, halign: -1},
|
||||||
|
{type: "txt", id: "speed", label: "00.0", font: this.fontLarge, bgCol: "#fff", col: "#000", width: 122},
|
||||||
|
{type: "txt", id: "speed_u", label: " km/h", font: this.fontLabel, col: "#000", width: 22, r: 90},
|
||||||
|
]
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: "h",
|
||||||
|
id: "time_g",
|
||||||
|
fillx: 1,
|
||||||
|
pad: 4,
|
||||||
|
bgCol: "#000",
|
||||||
|
height: 32,
|
||||||
|
c: [
|
||||||
|
{type: undefined, width: 32, halign: -1},
|
||||||
|
{type: "txt", id: "time", label: "00:00", font: this.fontMed, bgCol: "#000", col: "#fff", width: 122},
|
||||||
|
{type: "txt", id: "time_u", label: "mins", font: this.fontLabel, bgCol: "#000", col: "#fff", width: 22, r: 90},
|
||||||
|
]
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: "h",
|
||||||
|
id: "stats_g",
|
||||||
|
fillx: 1,
|
||||||
|
bgCol: "#fff",
|
||||||
|
height: 32,
|
||||||
|
c: [
|
||||||
|
{
|
||||||
|
type: "v",
|
||||||
|
pad: 4,
|
||||||
|
bgCol: "#fff",
|
||||||
|
c: [
|
||||||
|
{type: "txt", id: "max_l", label: "MAX", font: this.fontLabel, col: "#000"},
|
||||||
|
{type: "txt", id: "max", label: "00.0", font: this.fontMed, bgCol: "#fff", col: "#000", width: 69},
|
||||||
|
],
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: "v",
|
||||||
|
pad: 4,
|
||||||
|
bgCol: "#fff",
|
||||||
|
c: [
|
||||||
|
{type: "txt", id: "avg_l", label: "AVG", font: this.fontLabel, col: "#000"},
|
||||||
|
{type: "txt", id: "avg", label: "00.0", font: this.fontMed, bgCol: "#fff", col: "#000", width: 69},
|
||||||
|
],
|
||||||
|
},
|
||||||
|
{type: "txt", id: "stats_u", label: " km/h", font: this.fontLabel, bgCol: "#fff", col: "#000", width: 22, r: 90},
|
||||||
|
]
|
||||||
|
},
|
||||||
|
],
|
||||||
|
});
|
||||||
|
this.layouts.distance = new Layout({
|
||||||
|
type: "v",
|
||||||
|
c: [
|
||||||
|
{
|
||||||
|
type: "h",
|
||||||
|
id: "tripd_g",
|
||||||
|
fillx: 1,
|
||||||
|
pad: 4,
|
||||||
|
bgCol: "#fff",
|
||||||
|
height: 32,
|
||||||
|
c: [
|
||||||
|
{type: "txt", id: "tripd_l", label: "TRP", font: this.fontLabel, bgCol: "#fff", col: "#000", width: 36},
|
||||||
|
{type: "txt", id: "tripd", label: "0", font: this.fontMed, bgCol: "#fff", col: "#000", width: 118},
|
||||||
|
{type: "txt", id: "tripd_u", label: "km", font: this.fontLabel, bgCol: "#fff", col: "#000", width: 22, r: 90},
|
||||||
|
]
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: "h",
|
||||||
|
id: "totald_g",
|
||||||
|
fillx: 1,
|
||||||
|
pad: 4,
|
||||||
|
bgCol: "#000",
|
||||||
|
height: 32,
|
||||||
|
c: [
|
||||||
|
{type: "txt", id: "totald_l", label: "TTL", font: this.fontLabel, bgCol: "#000", col: "#fff", width: 36},
|
||||||
|
{type: "txt", id: "totald", label: "0", font: this.fontMed, bgCol: "#000", col: "#fff", width: 118},
|
||||||
|
{type: "txt", id: "totald_u", label: "km", font: this.fontLabel, bgCol: "#000", col: "#fff", width: 22, r: 90},
|
||||||
|
]
|
||||||
|
},
|
||||||
|
],
|
||||||
|
});
|
||||||
|
this.layouts.status = new Layout({
|
||||||
|
type: "v",
|
||||||
|
c: [
|
||||||
|
{
|
||||||
|
type: "h",
|
||||||
|
id: "status_g",
|
||||||
|
fillx: 1,
|
||||||
|
bgCol: "#fff",
|
||||||
|
height: 100,
|
||||||
|
c: [
|
||||||
|
{type: "txt", id: "status", label: "Bangle Cycling", font: this.fontMed, bgCol: "#fff", col: "#000", width: 176, wrap: 1},
|
||||||
|
]
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: "h",
|
||||||
|
id: "addr_g",
|
||||||
|
fillx: 1,
|
||||||
|
pad: 4,
|
||||||
|
bgCol: "#fff",
|
||||||
|
height: 32,
|
||||||
|
c: [
|
||||||
|
{ type: "txt", id: "addr_l", label: "MAC", font: this.fontLabel, bgCol: "#fff", col: "#000", width: 36 },
|
||||||
|
{ type: "txt", id: "addr", label: "unknown", font: this.fontLabel, bgCol: "#fff", col: "#000", width: 140 },
|
||||||
|
]
|
||||||
|
},
|
||||||
|
],
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
updateLayout(layout) {
|
||||||
|
this.currentLayout = layout;
|
||||||
|
|
||||||
|
g.clear();
|
||||||
|
this.layouts[layout].update();
|
||||||
|
this.layouts[layout].render();
|
||||||
|
}
|
||||||
|
|
||||||
|
renderIfLayoutActive(layout, node) {
|
||||||
|
if (layout != this.currentLayout) return;
|
||||||
|
this.layouts[layout].render(node)
|
||||||
|
}
|
||||||
|
|
||||||
|
useMetricUnits(metric) {
|
||||||
|
this.metric = metric;
|
||||||
|
|
||||||
|
console.log("using " + (metric ? "metric" : "imperial") + " units");
|
||||||
|
|
||||||
|
var speedUnit = metric ? "km/h" : "mph";
|
||||||
|
this.layouts.speed.speed_u.label = speedUnit;
|
||||||
|
this.layouts.speed.stats_u.label = speedUnit;
|
||||||
|
|
||||||
|
var distanceUnit = metric ? "km" : "mi";
|
||||||
|
this.layouts.distance.tripd_u.label = distanceUnit;
|
||||||
|
this.layouts.distance.totald_u.label = distanceUnit;
|
||||||
|
|
||||||
|
this.updateLayout(this.currentLayout);
|
||||||
|
}
|
||||||
|
|
||||||
|
convertDistance(meters) {
|
||||||
|
if (this.metric) return meters / 1000;
|
||||||
|
return meters / 1609.344;
|
||||||
|
}
|
||||||
|
|
||||||
|
convertSpeed(mps) {
|
||||||
|
if (this.metric) return mps * 3.6;
|
||||||
|
return mps * 2.23694;
|
||||||
|
}
|
||||||
|
|
||||||
|
setSpeed(speed) {
|
||||||
|
this.layouts.speed.speed.label = this.convertSpeed(speed).toFixed(1);
|
||||||
|
this.renderIfLayoutActive("speed", this.layouts.speed.speed_g);
|
||||||
|
}
|
||||||
|
|
||||||
|
setAvg(speed) {
|
||||||
|
this.layouts.speed.avg.label = this.convertSpeed(speed).toFixed(1);
|
||||||
|
this.renderIfLayoutActive("speed", this.layouts.speed.stats_g);
|
||||||
|
}
|
||||||
|
|
||||||
|
setMax(speed) {
|
||||||
|
this.layouts.speed.max.label = this.convertSpeed(speed).toFixed(1);
|
||||||
|
this.renderIfLayoutActive("speed", this.layouts.speed.stats_g);
|
||||||
|
}
|
||||||
|
|
||||||
|
setTime(seconds) {
|
||||||
|
var time = '';
|
||||||
|
var hours = Math.floor(seconds/3600);
|
||||||
|
if (hours) {
|
||||||
|
time += hours + ":";
|
||||||
|
this.layouts.speed.time_u.label = " hrs";
|
||||||
|
} else {
|
||||||
|
this.layouts.speed.time_u.label = "mins";
|
||||||
|
}
|
||||||
|
|
||||||
|
time += String(Math.floor((seconds%3600)/60)).padStart(2, '0') + ":";
|
||||||
|
time += String(seconds % 60).padStart(2, '0');
|
||||||
|
|
||||||
|
this.layouts.speed.time.label = time;
|
||||||
|
this.renderIfLayoutActive("speed", this.layouts.speed.time_g);
|
||||||
|
}
|
||||||
|
|
||||||
|
setTripDistance(distance) {
|
||||||
|
this.layouts.distance.tripd.label = this.convertDistance(distance).toFixed(1)
|
||||||
|
this.renderIfLayoutActive("distance", this.layouts.distance.tripd_g);
|
||||||
|
}
|
||||||
|
|
||||||
|
setTotalDistance(distance) {
|
||||||
|
this.layouts.distance.totald.label = this.convertDistance(distance).toFixed(1)
|
||||||
|
this.renderIfLayoutActive("distance", this.layouts.distance.totald_g);
|
||||||
|
}
|
||||||
|
|
||||||
|
setDeviceAddress(address) {
|
||||||
|
this.layouts.status.addr.label = address
|
||||||
|
this.renderIfLayoutActive("status", this.layouts.status.addr_g);
|
||||||
|
}
|
||||||
|
|
||||||
|
setStatus(status) {
|
||||||
|
this.layouts.status.status.label = status
|
||||||
|
this.renderIfLayoutActive("status", this.layouts.status.status_g);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
var BLECSC;
|
||||||
|
if (process.env.BOARD === "EMSCRIPTEN" || process.env.BOARD === "EMSCRIPTEN2") {
|
||||||
|
// Emulator
|
||||||
|
BLECSC = require("blecsc-emu");
|
||||||
|
} else {
|
||||||
|
// Actual hardware
|
||||||
|
BLECSC = require("blecsc");
|
||||||
|
}
|
||||||
|
var blecsc = new BLECSC();
|
||||||
|
var display = new CSCDisplay();
|
||||||
|
var sensor = new CSCSensor(blecsc, display);
|
||||||
|
|
||||||
|
E.on('kill',()=>{
|
||||||
|
sensor.disconnect();
|
||||||
|
});
|
||||||
|
|
||||||
|
Bangle.setUI("updown", d => {
|
||||||
|
sensor.interact(d);
|
||||||
|
});
|
||||||
|
|
||||||
|
sensor.connect();
|
||||||
|
// Bangle.loadWidgets();
|
||||||
|
// Bangle.drawWidgets();
|
||||||
Binary file not shown.
|
After Width: | Height: | Size: 1.5 KiB |
|
|
@ -0,0 +1,16 @@
|
||||||
|
{
|
||||||
|
"id": "cycling",
|
||||||
|
"name": "Bangle Cycling",
|
||||||
|
"shortName": "Cycling",
|
||||||
|
"version": "0.01",
|
||||||
|
"description": "Display live values from a BLE CSC sensor",
|
||||||
|
"icon": "icons8-cycling-48.png",
|
||||||
|
"tags": "outdoors,exercise,ble,bluetooth",
|
||||||
|
"supports": ["BANGLEJS2"],
|
||||||
|
"readme": "README.md",
|
||||||
|
"storage": [
|
||||||
|
{"name":"cycling.app.js","url":"cycling.app.js"},
|
||||||
|
{"name":"cycling.settings.js","url":"settings.js"},
|
||||||
|
{"name":"blecsc","url":"blecsc.js"}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,37 @@
|
||||||
|
// This file should contain exactly one function, which shows the app's settings
|
||||||
|
/**
|
||||||
|
* @param {function} back Use back() to return to settings menu
|
||||||
|
*/
|
||||||
|
(function(back) {
|
||||||
|
const SETTINGS_FILE = 'cscsensor.json'
|
||||||
|
// initialize with default settings...
|
||||||
|
let s = {
|
||||||
|
'wheelcirc': 2230,
|
||||||
|
}
|
||||||
|
// ...and overwrite them with any saved values
|
||||||
|
// This way saved values are preserved if a new version adds more settings
|
||||||
|
const storage = require('Storage')
|
||||||
|
const saved = storage.readJSON(SETTINGS_FILE, 1) || {}
|
||||||
|
for (const key in saved) {
|
||||||
|
s[key] = saved[key];
|
||||||
|
}
|
||||||
|
// creates a function to safe a specific setting, e.g. save('color')(1)
|
||||||
|
function save(key) {
|
||||||
|
return function (value) {
|
||||||
|
s[key] = value;
|
||||||
|
storage.write(SETTINGS_FILE, s);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
const menu = {
|
||||||
|
'': { 'title': 'Cycle speed sensor' },
|
||||||
|
'< Back': back,
|
||||||
|
'Wheel circ.(mm)': {
|
||||||
|
value: s.wheelcirc,
|
||||||
|
min: 800,
|
||||||
|
max: 2400,
|
||||||
|
step: 5,
|
||||||
|
onchange: save('wheelcirc'),
|
||||||
|
},
|
||||||
|
}
|
||||||
|
E.showMenu(menu);
|
||||||
|
})
|
||||||
Loading…
Reference in New Issue