HeartRate Broadcaster

HeartRate Broadcaster turns your iPhone into a standard Bluetooth heart rate monitor, fed by the sensors you already wear. Your Apple Watch and AirPods Pro 3 measure your heart rate continuously, but nothing else can read them. Training apps and bike computers expect a Bluetooth chest strap. HeartRate Broadcaster bridges the two: it reads live heart rate from your watch and AirPods, reconciles them into a single reading, and rebroadcasts it as a standard Bluetooth LE Heart Rate Service. Your training app sees an ordinary strap. TWO SENSORS, ONE NUMBER When the watch and AirPods both report, the app averages readings that agree and rejects the outlier when they disagree, preferring whichever is closer to the trend it has already seen. Head units only ever see one sensor. The Sensor Agreement row shows which sensors are live, how far apart they are, and which number went out — so you…