Android Question BLE2 WriteData

[Steve-h]

The data sheet for the module I am trying to communicate with tells me the service UUID is :-

49535343-FE7D-4AE5-8FA9-9FAFD205E455

and the Characteristic UUID for write without response is :-

49535343-8841-43F4-A8D4-ECBE34729BB3

It is not clear to me how I use those UUID. Plainly this is wrong, but if I try this understandably it crashes.

WriteData(49535343-FE7D-4AE5-8FA9-9FAFD205E455, 49535343-8841-43F4-A8D4-ECBE34729BB3(1))

I really don't understand what I am doing here, please can someone give me a clue how I can send just 1 character to the remote BLE device.

 

[f0raster0]

to write try some way like that
WriteData("6e400001-b5a3-f393-e0a9-e50e24dcca9e", "6e400002-b5a3-f393-e0a9-e50e24dcca9e", Array As Byte(1))

 

[toby]

Try the example firstThread '[B4X] BLE 2 - Bluetooth Low Energy' https://www.b4x.com/android/forum/threads/b4x-ble-2-bluetooth-low-energy.59937/

 

[Steve-h]

to write try some way like that
WriteData("6e400001-b5a3-f393-e0a9-e50e24dcca9e", "6e400002-b5a3-f393-e0a9-e50e24dcca9e", Array As Byte(1))

Thank you.
It was the “Array as byte” I was missing.