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Add ability to connect to hear rate sensor and post data back to server on workout complete, currently not rendering graphing data

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This commit is contained in:
Peter Stockings
2023-05-07 18:15:31 +10:00
parent 5f1a5e6a4a
commit 43e5f66cc1
3 changed files with 138 additions and 6 deletions
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25
app.py
View File

@@ -68,6 +68,15 @@ class CadenceReading(db.Model):
power = db.Column(db.Integer, nullable=False)
class HeartRateReading(db.Model):
__tablename__ = 'heartrate_readings'
id = db.Column(db.Integer, primary_key=True)
workout_id = db.Column(db.Integer, db.ForeignKey(
'workouts.id', ondelete='CASCADE'), nullable=False)
created_at = db.Column(db.DateTime, nullable=False)
bpm = db.Column(db.Integer, nullable=False)
@app.route('/', methods=['GET'])
def get_workouts():
return render_users_and_workouts()
@@ -113,21 +122,31 @@ def workouts(user_id):
elif request.method == 'POST':
user = User.query.get(user_id)
app.logger.info(f'Creating workout for user {user.name} ({user.id})')
data = request.json
data = data['workout']
workout = data['workout'] or []
heart_rate = data['heart_rate'] or []
# create a new workout
workout = Workout(user_id=user_id, bike_id=user.bike_id)
db.session.add(workout)
db.session.commit()
app.logger.info(
f'Workout({workout.id}) created for user {user.name} ({user.id}) with {len(workout)} cadence readings and {len(heart_rate)} heart rate readings')
# add cadence readings to the workout
for d in data:
for w in workout:
cadence_reading = CadenceReading(
workout_id=workout.id, created_at=d['timestamp'], rpm=d['rpm'], distance=d['distance'], speed=d['speed'], calories=d['calories'], power=d['power'])
workout_id=workout.id, created_at=w['timestamp'], rpm=w['rpm'], distance=w['distance'], speed=w['speed'], calories=w['calories'], power=w['power'])
db.session.add(cadence_reading)
for h in heart_rate:
heart_rate_reading = HeartRateReading(
workout_id=workout.id, created_at=h['timestamp'], bpm=h['bpm'])
db.session.add(heart_rate_reading)
db.session.commit()
return jsonify({'message': 'Workout created successfully.'}), 201

8
database/001_create_tables.sql
View File

@@ -25,6 +25,14 @@ CREATE TABLE
CONSTRAINT unique_cadence_reading_per_workout_time UNIQUE (workout_id, created_at)
);
CREATE TABLE
heartrate_readings (
id SERIAL PRIMARY KEY,
workout_id INTEGER NOT NULL REFERENCES workouts (id) ON DELETE CASCADE,
created_at TIMESTAMP NOT NULL,
bpm INTEGER NOT NULL
);
CREATE TABLE
bikes (
id SERIAL PRIMARY KEY,

111
templates/new_workout.html
View File

@@ -29,7 +29,19 @@
</a>
</div>
<div class="flex items-center">
<button>
<svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve"
class="inline w-12 h-12 text-red-800 fill-current" id="heart_rate_button"
viewBox="0 0 33.087 33.087">
<path
d="M6.802 13.924h.007c.25.003.477.15.58.379l1.482 3.288 1.142-1.517a.617.617 0 0 1 .559-.256c.217.015.412.14.518.33l1.939 3.497 1.606-5.947a.643.643 0 0 1 1.192-.13l1.244 2.377 2.316-4.499a.658.658 0 0 1 .666-.344.647.647 0 0 1 .54.521l1.254 6.762 2.903-2.826a.628.628 0 0 1 .574-.17c.206.04.381.182.466.376l.859 1.988 1.407-4.622c.06-.193.215-.314.396-.383.013-.384.029-.766-.012-1.157-.698-6.77-8.258-6.665-11.898-3.399-3.64-3.266-11.195-3.37-11.897 3.399-.164 1.58.133 3.094.711 4.517l.865-1.817a.64.64 0 0 1 .581-.367z">
</path>
<path
d="M21.883 20.146a.643.643 0 0 1-1.083-.345l-1.13-6.092-2.023 3.927a.642.642 0 0 1-.568.349h-.001a.647.647 0 0 1-.571-.345l-1.058-2.018-1.591 5.893a.647.647 0 0 1-.621.476.64.64 0 0 1-.562-.332l-2.229-4.019-1.2 1.593a.642.642 0 0 1-1.101-.124L6.787 16.1l-.711 1.494c3.192 5.625 10.468 9.468 10.468 9.468s5.849-3.095 9.359-7.791l-.925-2.138-3.095 3.013zM4.637 17.621l-1.6-1.185a.641.641 0 0 0-.621-.083l-2.009.797a.643.643 0 1 0 .473 1.196l1.678-.664 1.94 1.436a.642.642 0 0 0 .964-.24l.612-1.286a12.902 12.902 0 0 1-.719-1.484l-.718 1.513zM32.441 17.105h-1.912l-1.242-3.977a.64.64 0 0 0-.614-.451h-.003c-.081 0-.146.044-.217.072-.076 2.377-1.104 4.584-2.55 6.521l.262.604c.106.248.353.419.627.387a.647.647 0 0 0 .58-.455l1.309-4.303.763 2.438a.64.64 0 0 0 .614.451h2.385a.645.645 0 0 0 .645-.645.646.646 0 0 0-.647-.642z">
</path>
</svg>
</button>
</div>
</div>
</div>
@@ -115,6 +127,8 @@
}
});
const integerNumber = (num) => parseInt(num);
const decimalNumber = (num) => parseFloat(num.toFixed(1));
@@ -167,7 +181,10 @@
isRunning = false;
clearInterval(intervalId);
toggleButton.textContent = 'Start';
// Disconnect from cadence sensor
disconnect();
// Disconnect from heart rate sensor
disconnectHeartRateMonitor();
fetch("{{ url_for('workouts', user_id=user.id) }}", {
method: "POST",
@@ -175,7 +192,7 @@
Accept: "application/json",
"Content-Type": "application/json",
},
body: JSON.stringify({ workout: workout }),
body: JSON.stringify({ workout: workout, heart_rate: heartRateData }),
}).then(res => res.json())
.then(res => {
workout = [];
@@ -283,10 +300,10 @@
if (characteristic) {
try {
await characteristic.stopNotifications();
log("> Notifications stopped");
console.log("> Notifications stopped");
characteristic.removeEventListener(
"characteristicvaluechanged",
handleNotifications
parseCSC
);
} catch (error) {
console.log("Argh! " + error);
@@ -391,6 +408,94 @@
return (energy * 0.238902957619) / 1000;
}
// Heart Rate monitor code
const heartRateButton = document.getElementById('heart_rate_button');
let isHearRateMonitorActive = false;
let heartRateCharateristic = null;
let heartRateData = [];
heartRateButton.addEventListener('click', async () => {
console.log('heartRateButton clicked, isHearRateMonitorActive: ', isHearRateMonitorActive);
if (isHearRateMonitorActive) {
console.log('Stopping heart rate monitor...');
await disconnectHeartRateMonitor();
isHearRateMonitorActive = false;
heartRateButton.classList.remove('text-red-800');
heartRateButton.classList.add('text-gray-700');
} else {
console.log('Starting heart rate monitor...');
await heartRateMonitorConnect();
isHearRateMonitorActive = true;
heartRateButton.classList.remove('text-gray-700');
heartRateButton.classList.add('text-red-800');
}
});
function parseHeartRate(value) {
const flags = value.getUint8(0);
const rate16Bits = flags & 0x1;
let heartRate;
if (rate16Bits) {
heartRate = value.getUint16(1, /*littleEndian=*/ true);
} else {
heartRate = value.getUint8(1);
}
return heartRate;
}
function heartRateChange(event) {
const currentHeartRate = parseHeartRate(event.target.value);
heartRateData = [...heartRateData, { timestamp: new Date(), heartRate: currentHeartRate }];
console.log('currentHeartRate:', currentHeartRate);
}
function heartRateMonitorConnect() {
return navigator.bluetooth.requestDevice({ filters: [{ services: ['heart_rate'] }] })
.then(device => {
return device.gatt.connect();
})
.then(server => {
return server.getPrimaryService('heart_rate')
})
.then(service => {
return service.getCharacteristic('heart_rate_measurement')
})
.then(character => {
heartRateCharateristic = character;
return heartRateCharateristic.startNotifications().then(_ => {
heartRateCharateristic.addEventListener('characteristicvaluechanged', heartRateChange);
})
.catch(e => console.error(e));
})
};
async function disconnectHeartRateMonitor() {
if (heartRateCharateristic) {
try {
await heartRateCharateristic.stopNotifications();
console.log("> Notifications stopped");
heartRateCharateristic.removeEventListener(
"characteristicvaluechanged", heartRateChange);
// Disconnect from GATT server
const device = heartRateCharateristic.service.device;
if (device.gatt.connected) {
device.gatt.disconnect();
console.log('Disconnected from heart rate monitor');
}
} catch (error) {
console.log("Argh! " + error);
swal("Oops", error, "error");
}
}
}
</script>
</body>