set split to infinity while pausing

app/ble/ftms/RowerDataCharacteristic.js

@@ -65,7 +65,8 @@ export default class RowerDataCharacteristic extends bleno.Characteristic {
       // Total Distance in meters
       bufferBuilder.writeUInt24LE(data.distanceTotal)
       // Instantaneous Pace in seconds/500m
-      bufferBuilder.writeUInt16LE(data.split)
+      // if split is infinite (i.e. while pausing), use the highest possible number
+      bufferBuilder.writeUInt16LE(data.split !== Infinity ? data.split : 0xFFFF)
       // Instantaneous Power in watts
       bufferBuilder.writeUInt16LE(data.power)
       // Energy in kcal

app/ble/pm5/characteristic/AdditionalStatus.js

@@ -46,7 +46,8 @@ export default class AdditionalStatus extends bleno.Characteristic {
       // heartRate: UInt8 in bpm, 255 if invalid
       bufferBuilder.writeUInt8(255)
       // currentPace: UInt16LE in 0.01 sec/500m
-      bufferBuilder.writeUInt16LE(data.split * 100)
+      // if split is infinite (i.e. while pausing), use the highest possible number
+      bufferBuilder.writeUInt16LE(data.split !== Infinity ? data.split * 100 : 0xFFFF)
       // averagePace: UInt16LE in 0.01 sec/500m
       let averagePace = 0
       if (data.distanceTotal && data.distanceTotal !== 0) {

app/client/app.js

@@ -87,9 +87,6 @@ export function createApp () {
     // eslint-disable-next-line no-undef
     const noSleep = new NoSleep()
     checkAlwaysOn()
-    setInterval(() => {
-      checkAlwaysOn()
-    }, 3000)
     document.addEventListener('click', function enableNoSleep () {
       document.removeEventListener('click', enableNoSleep, false)
       noSleep.enable().then(checkAlwaysOn)

app/engine/RowingStatistics.js

@@ -70,7 +70,7 @@ function createRowingStatistics () {
   }
 
   function getMetrics () {
-    const splitTime = speedAverager.weightedAverage() !== 0 ? (500.0 / speedAverager.weightedAverage()) : 0
+    const splitTime = speedAverager.weightedAverage() !== 0 ? (500.0 / speedAverager.weightedAverage()) : Infinity
     return {
       durationTotal,
       durationTotalFormatted: secondsToTimeString(durationTotal),
@@ -143,6 +143,7 @@ function createRowingStatistics () {
 
   // converts a timeStamp in seconds to a human readable hh:mm:ss format
   function secondsToTimeString (secondsTimeStamp) {
+    if (secondsTimeStamp === Infinity) return '∞'
     const hours = Math.floor(secondsTimeStamp / 60 / 60)
     const minutes = Math.floor(secondsTimeStamp / 60) - (hours * 60)
     const seconds = Math.floor(secondsTimeStamp % 60)

app/server.js

@@ -8,13 +8,15 @@
 */
 import { fork } from 'child_process'
 import log from 'loglevel'
+// eslint-disable-next-line no-unused-vars
+import fs from 'fs'
 import config from './config.js'
 import { createRowingEngine } from './engine/RowingEngine.js'
 import { createRowingStatistics } from './engine/RowingStatistics.js'
 import { createWebServer } from './WebServer.js'
 import { createPeripheralManager } from './ble/PeripheralManager.js'
 // eslint-disable-next-line no-unused-vars
-import { recordRowingSession, replayRowingSession } from './tools/RowingRecorder.js'
+import { replayRowingSession } from './tools/RowingRecorder.js'
 
 // set the log levels
 log.setLevel(config.loglevel.default)
@@ -60,6 +62,7 @@ peripheralManager.on('control', (event) => {
 const gpioTimerService = fork('./app/gpio/GpioTimerService.js')
 gpioTimerService.on('message', (dataPoint) => {
   rowingEngine.handleRotationImpulse(dataPoint)
+  // fs.appendFile('recordings/wrx700_2magnets_long.csv', `${dataPoint}\n`, (err) => { if (err) log.error(err) })
 })
 
 const rowingEngine = createRowingEngine()
@@ -101,9 +104,8 @@ rowingStatistics.on('rowingPaused', (data) => {
     caloriesPerHour: 0,
     strokesPerMinute: 0,
     power: 0,
-    // todo: setting split to 0 might be dangerous, depending on what the client does with this
-    splitFormatted: '00:00',
-    split: 0,
+    splitFormatted: '∞',
+    split: Infinity,
     speed: 0,
     strokeState: 'RECOVERY'
   }
@@ -137,7 +139,6 @@ webServer.on('clientConnected', () => {
   webServer.notifyClients({ peripheralMode: peripheralManager.getPeripheralMode() })
 })
 
-// recordRowingSession('recordings/wrx700_2magnets.csv')
 /*
 replayRowingSession(rowingEngine.handleRotationImpulse, {
   filename: 'recordings/wrx700_2magnets.csv',

app/tools/RowingRecorder.js

@@ -14,8 +14,8 @@ function recordRowingSession (filename) {
   // to track time close to realtime
   const gpioTimerService = fork('./app/gpio/GpioTimerService.js')
   gpioTimerService.on('message', (dataPoint) => {
-    log.debug(dataPoint.delta)
-    fs.appendFile(filename, `${dataPoint.delta}\n`, (err) => { if (err) log.error(err) })
+    log.debug(dataPoint)
+    fs.appendFile(filename, `${dataPoint}\n`, (err) => { if (err) log.error(err) })
   })
 }
 

doc/backlog.md

@@ -6,8 +6,6 @@ This is the very minimalistic Backlog for further development of this project.
 
 * investigate: occasionally stroke rate is too high - seems to happen after rowing pause
 * figure out where to set the Service Advertising Data (FTMS.pdf p 15)
-* investigate bug: crash, when one unsubscribe to BLE "Generic Attribute", probably a bleno bug "handleAttribute.emit is not a function"
-* what value should we use for split, if we are in a rowing pause? technically should be infinity...
 * set up a Raspberry Pi with the installation instructions to see if they are correct
 
 ## Later