What does the string look like that the bluetooth sensor on the metawear is expecting

ldeluca · August 2014

I'm writing an android/ios app and I don't want to use the metawear bluetooth apis. I'd like to send the "strings" to the metawear myself using my own bluetoothLE code.

Can you please share with us the information on the format of the data that the metawear is both looking for AND returning?

What the bluetoothle.write string should look like for the various sensors as well as the bluetoothle.read should expect for a result.

Thank you,

Lisa

ldeluca · August 2014

Still waiting on a response to this one...

var data = new Uint8Array(6);

data[0] = 0x02; // module LED is at position 2 (but neopixel is at 6)? which to use?

data[1] = 0x01; // pulse ops code

data[2] = ///? how do we pass in the RGB value and the intensity?

Eric · August 2014

The LED attributes are set per color channel, which is determined in byte 2 (0 = green, 1 = red, 2 = blue). This allows you to control each LED color independent of the others.

The rest of bytes needed to set an LED channel can be seen in the Java API code:

https://github.com/mbientlab/Metawear-AndroidAPI/blob/master/src/com/mbientlab/metawear/api/MetaWearBleService.java#L381

What does the string look like that the bluetooth sensor on the metawear is expecting

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