History

Gordon Williams d42a80da00 add workaround for connection timeout issue		2023-04-24 11:27:08 +01:00
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ChangeLog	resurface original bthrm app as bthrmlite - for https://forum.espruino.com/conversations/385841/#comment16951663	2023-04-24 10:42:16 +01:00
README.md	allow log messages	2023-04-24 10:56:01 +01:00
app-icon.js	resurface original bthrm app as bthrmlite - for https://forum.espruino.com/conversations/385841/#comment16951663	2023-04-24 10:42:16 +01:00
app.png	resurface original bthrm app as bthrmlite - for https://forum.espruino.com/conversations/385841/#comment16951663	2023-04-24 10:42:16 +01:00
boot.js	add workaround for connection timeout issue	2023-04-24 11:27:08 +01:00
metadata.json	resurface original bthrm app as bthrmlite - for https://forum.espruino.com/conversations/385841/#comment16951663	2023-04-24 10:42:16 +01:00

README.md

Bluetooth Heart Rate Monitor - Lite

When this app is installed it overrides Bangle.js's built in heart rate monitor with an external Bluetooth one.

The bthrm app is a much more sophisticated version of this app, however is uses a lot more RAM so may not be suitable for Bangle.js 1.

HRM is requested it searches on Bluetooth for a heart rate monitor, connects, and sends data back using the Bangle.on('HRM' event as if it came from the on board monitor.

This means it's compatible with many Bangle.js apps including:

It it NOT COMPATIBLE with Heart Rate Monitor as that requires live sensor data (rather than just BPM readings).

Usage

Just install the app, then install an app that uses the heart rate monitor.

Once an app requests Heart Rate bthrmlite will automatically try and connect to the first bluetooth heart rate monitor it finds.

To disable this and return to normal HRM, uninstall the app

Compatible Heart Rate Monitors

This works with any heart rate monitor providing the standard Bluetooth Heart Rate Service (180D) and characteristic (2A37).

So far it has been tested on:

CooSpo Bluetooth Heart Rate Monitor

Internals

This replaces Bangle.setHRMPower with its own implementation.

To get debug info, you can call Bangle.enableBTHRMLog() in the IDE to enable log messages.

Creator

Gordon Williams