Android Question binary data through bluetooth (problem with bytes over 127)

[prochip]

Hi friends,

I just playing with bluetooth device. All communications are working. Now I want to build a bootloader application to flash my AVR microcontrollers.

When I send a byte upto 127 all works fine. But if the microcontroller send a 128 I receive a "-90"... Where is my error?

Cheers

Jan

 

[Erel]

See this post: https://www.b4x.com/android/forum/threads/unsigned-variable-types.30911/#post-179784