What UUID(bluetooth LE) should I use to connect between my android app and lightblue app?

Question

In this case, I hope to use LightBlue app to simulate as a "Heart Rate" Virtual Peripherals.

And wish to write the android app to connect this Virtual Peripherals.

But I really do not know that how to test read/write/... function between my app and LightBlue.

I try to use General's UUID in "Heart Rate" to filter the device I find, but it always return nothing.

What UUID should press in "startLeScan(UUID, callback)" function?

Where can I find it in LightBlue?

Then, there are some service UUID have only 16bits, how can I use it?

what should I do in callback function that function can help me to get the value on my LightBlue?

this is the code that I reference to.

and this code

UUID HUMIDITY_SERVICE = UUID.fromString("f000aa20-0451-4000-b000-000000000000");

UUID HUMIDITY_DATA_CHAR = UUID.fromString("f000aa21-0451-4000-b000-000000000000");

UUID HUMIDITY_CONFIG_CHAR = UUID.fromString("f000aa22-0451-4000-b000-000000000000");

For one sensor, he use three UUID for SERVICE, DATA, CONFIG, it really confuses me!

how should I find all about that by LightBlue?

Please give me some suggestion.

Thanks a lot!

Devin

Answer 1

The assigned service UUIDs are available here . The Heart Rate Service is 0x180D. The characteristics are listed on this page . The heart rate characteristics are 0x2A39, 0x2A8D and 0x2A37.

You should refer to the Heart Rate Service specification for details on the use of the characteristics