BLE Cadence & Speed sensor issue

arsab commented 5 years ago

In my case the HR sensor work as expected but

the Cadence & Speed sensor state to have connected but does not show value nor record Gpx (it is able to report data to other applications)

These does not show yet on the release note but will be nice features moving forward

arsab commented 5 years ago

I tried to debug and found few point which might help: I have Sunding - 515 which is quite standard, I made Arduino driver for ESP32 http://www.sunding.com/en/plus/view.php?aid=45.

By putting traces and changing few simple code: I do not master Android ;-( realized that the main issue for that is on setting of following flags:

isSpeedSensor
isCadenceSensor By forcing both to "true" since I have both functions, I start to get cadence displayed.

arsab commented 5 years ago

Got it : the bit 2 on CSC Feature is more about location rather then capability so changing readCscFeature as follows solve the problem.

private void readCscFeature(byte[] v) {
    if (v.length > 0) {
        byte b = v[0];
        isCadenceSensor = ID.isBitSet(b, BIT_CADENCE);
        isSpeedSensor = ID.isBitSet(b, BIT_SPEED);
    }
}

https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=261450 Section 3.2, 3.3

bailuk commented 5 years ago

Thank you for this detailed bug report. Detection of multiple sensors should now work.

bailuk / AAT

BLE Cadence & Speed sensor issue #56