aai-ant-plus
Version:
A node module for ANT+
440 lines • 18 kB
JavaScript
"use strict";
/*
* ANT+ profile: https://www.thisisant.com/developer/ant-plus/device-profiles/#521_tab
* Spec sheet: https://www.thisisant.com/resources/bicycle-power/
*/
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var Ant = require("./ant");
var Constants = Ant.Constants;
var Messages = Ant.Messages;
var FitnessEquipmentSensorState = /** @class */ (function () {
function FitnessEquipmentSensorState(deviceID) {
this.PairedDevices = [];
this.DeviceID = deviceID;
}
return FitnessEquipmentSensorState;
}());
var FitnessEquipmentScanState = /** @class */ (function (_super) {
__extends(FitnessEquipmentScanState, _super);
function FitnessEquipmentScanState() {
return _super !== null && _super.apply(this, arguments) || this;
}
return FitnessEquipmentScanState;
}(FitnessEquipmentSensorState));
var FitnessEquipmentSensor = /** @class */ (function (_super) {
__extends(FitnessEquipmentSensor, _super);
function FitnessEquipmentSensor(stick) {
var _this = _super.call(this, stick) || this;
_this.decodeDataCbk = _this.decodeData.bind(_this);
return _this;
}
FitnessEquipmentSensor.prototype.attach = function (channel, deviceID) {
_super.prototype.attach.call(this, channel, 'receive', deviceID, FitnessEquipmentSensor.deviceType, 0, 255, 8192);
this.state = new FitnessEquipmentSensorState(deviceID);
};
FitnessEquipmentSensor.prototype.decodeData = function (data) {
if (data.readUInt8(Messages.BUFFER_INDEX_CHANNEL_NUM) !== this.channel) {
return;
}
switch (data.readUInt8(Messages.BUFFER_INDEX_MSG_TYPE)) {
case Constants.MESSAGE_CHANNEL_BROADCAST_DATA:
case Constants.MESSAGE_CHANNEL_ACKNOWLEDGED_DATA:
case Constants.MESSAGE_CHANNEL_BURST_DATA:
if (this.deviceID === 0) {
this.write(Messages.requestMessage(this.channel, Constants.MESSAGE_CHANNEL_ID));
}
updateState(this, this.state, data);
break;
case Constants.MESSAGE_CHANNEL_ID:
this.deviceID = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA);
this.transmissionType = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 3);
this.state.DeviceID = this.deviceID;
break;
default:
break;
}
};
FitnessEquipmentSensor.deviceType = 0x11;
return FitnessEquipmentSensor;
}(Ant.AntPlusSensor));
exports.FitnessEquipmentSensor = FitnessEquipmentSensor;
var FitnessEquipmentScanner = /** @class */ (function (_super) {
__extends(FitnessEquipmentScanner, _super);
function FitnessEquipmentScanner(stick) {
var _this = _super.call(this, stick) || this;
_this.states = {};
_this.decodeDataCbk = _this.decodeData.bind(_this);
return _this;
}
FitnessEquipmentScanner.prototype.scan = function () {
_super.prototype.scan.call(this, 'receive');
};
FitnessEquipmentScanner.prototype.decodeData = function (data) {
if (data.length <= Messages.BUFFER_INDEX_EXT_MSG_BEGIN || !(data.readUInt8(Messages.BUFFER_INDEX_EXT_MSG_BEGIN) & 0x80)) {
console.log('wrong message format');
return;
}
var deviceId = data.readUInt16LE(Messages.BUFFER_INDEX_EXT_MSG_BEGIN + 1);
var deviceType = data.readUInt8(Messages.BUFFER_INDEX_EXT_MSG_BEGIN + 3);
if (deviceType !== FitnessEquipmentScanner.deviceType) {
return;
}
if (!this.states[deviceId]) {
this.states[deviceId] = new FitnessEquipmentScanState(deviceId);
}
if (data.readUInt8(Messages.BUFFER_INDEX_EXT_MSG_BEGIN) & 0x40) {
if (data.readUInt8(Messages.BUFFER_INDEX_EXT_MSG_BEGIN + 5) === 0x20) {
this.states[deviceId].Rssi = data.readInt8(Messages.BUFFER_INDEX_EXT_MSG_BEGIN + 6);
this.states[deviceId].Threshold = data.readInt8(Messages.BUFFER_INDEX_EXT_MSG_BEGIN + 7);
}
}
switch (data.readUInt8(Messages.BUFFER_INDEX_MSG_TYPE)) {
case Constants.MESSAGE_CHANNEL_BROADCAST_DATA:
case Constants.MESSAGE_CHANNEL_ACKNOWLEDGED_DATA:
case Constants.MESSAGE_CHANNEL_BURST_DATA:
updateState(this, this.states[deviceId], data);
break;
default:
break;
}
};
FitnessEquipmentScanner.deviceType = 0x11;
return FitnessEquipmentScanner;
}(Ant.AntPlusScanner));
exports.FitnessEquipmentScanner = FitnessEquipmentScanner;
function resetState(state) {
delete state.ElapsedTime;
delete state.Distance;
delete state.RealSpeed;
delete state.VirtualSpeed;
delete state.HeartRate;
delete state.HeartRateSource;
delete state.CycleLength;
delete state.Incline;
delete state.Resistance;
delete state.METs;
delete state.CaloricBurnRate;
delete state.Calories;
delete state._EventCount0x19;
delete state.Cadence;
delete state.AccumulatedPower;
delete state.InstantaneousPower;
delete state.AveragePower;
delete state.TrainerStatus;
delete state.TargetStatus;
}
function updateState(sensor, state, data) {
var page = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA);
switch (page) {
case 0x01: {
var temperature = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 3);
if (temperature !== 0xFF) {
state.Temperature = -25 + temperature * 0.5;
}
var calBF = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 1);
if (calBF & 0x40) {
state.ZeroOffset = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 4);
}
if (calBF & 0x80) {
state.SpinDownTime = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 6);
}
break;
}
case 0x10: {
var equipmentTypeBF = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 1);
switch (equipmentTypeBF & 0x1F) {
case 19:
state.EquipmentType = 'Treadmill';
break;
case 20:
state.EquipmentType = 'Elliptical';
break;
case 21:
state.EquipmentType = 'StationaryBike';
break;
case 22:
state.EquipmentType = 'Rower';
break;
case 23:
state.EquipmentType = 'Climber';
break;
case 24:
state.EquipmentType = 'NordicSkier';
break;
case 25:
state.EquipmentType = 'Trainer';
break;
default:
state.EquipmentType = 'General';
break;
}
var elapsedTime = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 2);
var distance = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 3);
var speed = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 4);
var heartRate = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 6);
var capStateBF = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 7);
if (heartRate !== 0xFF) {
switch (capStateBF & 0x03) {
case 3: {
state.HeartRate = heartRate;
state.HeartRateSource = 'HandContact';
break;
}
case 2: {
state.HeartRate = heartRate;
state.HeartRateSource = 'EM';
break;
}
case 1: {
state.HeartRate = heartRate;
state.HeartRateSource = 'ANT+';
break;
}
default: {
delete state.HeartRate;
delete state.HeartRateSource;
break;
}
}
}
elapsedTime /= 4;
var oldElapsedTime = (state.ElapsedTime || 0) % 64;
if (elapsedTime !== oldElapsedTime) {
if (oldElapsedTime > elapsedTime) {
elapsedTime += 64;
}
}
state.ElapsedTime = (state.ElapsedTime || 0) + elapsedTime - oldElapsedTime;
if (capStateBF & 0x04) {
var oldDistance = (state.Distance || 0) % 256;
if (distance !== oldDistance) {
if (oldDistance > distance) {
distance += 256;
}
}
state.Distance = (state.Distance || 0) + distance - oldDistance;
}
else {
delete state.Distance;
}
if (capStateBF & 0x08) {
state.VirtualSpeed = speed / 1000;
delete state.RealSpeed;
}
else {
delete state.VirtualSpeed;
state.RealSpeed = speed / 1000;
}
switch ((capStateBF & 0x70) >> 4) {
case 1:
state.State = 'OFF';
break;
case 2:
state.State = 'READY';
resetState(state);
break;
case 3:
state.State = 'IN_USE';
break;
case 4:
state.State = 'FINISHED';
break;
default:
delete state.State;
break;
}
if (capStateBF & 0x80) {
// lap
}
break;
}
case 0x11: {
var cycleLen = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 3);
var incline = data.readInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 4);
var resistance = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 6);
var capStateBF = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 7);
if (cycleLen !== 0xFF) {
state.CycleLength = cycleLen / 100;
}
if (incline >= -10000 && incline <= 10000) {
state.Incline = incline / 100;
}
if (resistance !== 0xFF) {
state.Resistance = resistance;
}
switch ((capStateBF & 0x70) >> 4) {
case 1:
state.State = 'OFF';
break;
case 2:
state.State = 'READY';
resetState(state);
break;
case 3:
state.State = 'IN_USE';
break;
case 4:
state.State = 'FINISHED';
break;
default:
delete state.State;
break;
}
if (capStateBF & 0x80) {
// lap
}
break;
}
case 0x12: {
var mets = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 2);
var caloricbr = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 4);
var calories = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 6);
var capStateBF = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 7);
if (mets !== 0xFFFF) {
state.METs = mets / 100;
}
if (caloricbr !== 0xFFFF) {
state.CaloricBurnRate = caloricbr / 10;
}
if (capStateBF & 0x01) {
state.Calories = calories;
}
switch ((capStateBF & 0x70) >> 4) {
case 1:
state.State = 'OFF';
break;
case 2:
state.State = 'READY';
resetState(state);
break;
case 3:
state.State = 'IN_USE';
break;
case 4:
state.State = 'FINISHED';
break;
default:
delete state.State;
break;
}
if (capStateBF & 0x80) {
// lap
}
break;
}
case 0x19: {
var oldEventCount = state._EventCount0x19 || 0;
var eventCount = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 1);
var cadence = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 2);
var accPower = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 3);
var power = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 5) & 0xFFF;
var trainerStatus = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 6) >> 4;
var flagStateBF = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 7);
if (eventCount !== oldEventCount) {
state._EventCount0x19 = eventCount;
if (oldEventCount > eventCount) {
eventCount += 255;
}
}
if (cadence !== 0xFF) {
state.Cadence = cadence;
}
if (power !== 0xFFF) {
state.InstantaneousPower = power;
var oldAccPower = (state.AccumulatedPower || 0) % 65536;
if (accPower !== oldAccPower) {
if (oldAccPower > accPower) {
accPower += 65536;
}
}
state.AccumulatedPower = (state.AccumulatedPower || 0) + accPower - oldAccPower;
state.AveragePower = (accPower - oldAccPower) / (eventCount - oldEventCount);
}
state.TrainerStatus = trainerStatus;
switch (flagStateBF & 0x03) {
case 0:
state.TargetStatus = 'OnTarget';
break;
case 1:
state.TargetStatus = 'LowSpeed';
break;
case 2:
state.TargetStatus = 'HighSpeed';
break;
default:
delete state.TargetStatus;
break;
}
switch ((flagStateBF & 0x70) >> 4) {
case 1:
state.State = 'OFF';
break;
case 2:
state.State = 'READY';
resetState(state);
break;
case 3:
state.State = 'IN_USE';
break;
case 4:
state.State = 'FINISHED';
break;
default:
delete state.State;
break;
}
if (flagStateBF & 0x80) {
// lap
}
break;
}
case 0x50: {
state.HwVersion = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 3);
state.ManId = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 4);
state.ModelNum = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 6);
break;
}
case 0x51: {
var swRevSup = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 2);
var swRevMain = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 3);
var serial = data.readInt32LE(Messages.BUFFER_INDEX_MSG_DATA + 4);
state.SwVersion = swRevMain;
if (swRevSup !== 0xFF) {
state.SwVersion += swRevSup / 1000;
}
if (serial !== 0xFFFFFFFF) {
state.SerialNumber = serial;
}
break;
}
case 0x56: {
var idx = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 1);
var tot = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 2);
var chState = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 3);
var devId = data.readUInt16LE(Messages.BUFFER_INDEX_MSG_DATA + 4);
var trType = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 6);
var devType = data.readUInt8(Messages.BUFFER_INDEX_MSG_DATA + 7);
if (idx === 0) {
state.PairedDevices = [];
}
if (tot > 0) {
state.PairedDevices.push({ id: devId, type: devType, paired: (chState & 0x80) ? true : false });
}
break;
}
default:
return;
}
sensor.emit('fitnessData', state);
}
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