Bluetooth module hc06 stop responding after less than 1 minute

Hi

I'm trying to turn led on/off using my andoird phone + ardunio uno + HC 06 module

I create my android apps based on "bluetooth chat" example and i test it on Comtestserial program (windows bluetooth emulator)

when i click "On" apps send string "a"
when i click "Off" apps send string "b"

Real test

i was able to connect to my hc06 module and confirm password(1234) , when i click On led turn on and when i click off led turn off it looks every things ok but when i try to turn led again i fail (module still connected) and i need to shut down power . (working for 1-2 minutes max)

it looks like a memory problem but can it be settled with only 2 strings ?

loumi365:
it looks like a memory problem

I reckon you're right, and Bluetooth is innocent.