Android Question BLE manager.writeData

Dey

Active Member
Licensed User
Hi everyone
I try to write data with manager.writedata
but I don't get any changes
I can read them correctly, I get the requested data, I apply a small modification, I write but they don't change.
BLE for me is a new thing
thank you

B4X:
dim hb(9)as byte
hb(0)=0
hb(1)=-43
hb(2)=10 'orginal 5
hb(3)=20
hb(4)=35
hb(5)=80
hb(6)=0
hb(7)=0
hb(8)=0
hb(9)=0
manager.writeData("00001554-1212-efde-1523-785feabcd123","0000155f-1212-efde-1523-785feabcd123",hb)
 

emexes

Well-Known Member
Licensed User
Can you write and read back the change using nRF Connect? Many interfaces uses separate characteristics for writing and reading what looks like the same piece of information, eg:

"In response to each write on UUID 00001524…, the device quickly sends a notification on a different bluetooth characteristic UUID = 00001525-1212-efde-1523-785feabcd123"

from (randomly chosen example) https://community.home-assistant.io/t/radoneye-ble-interface/94962
 
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