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

Discussion in 'Android Questions' started by prochip, Jun 5, 2015.

  1. prochip

    prochip New Member Licensed User

    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?


  2. Erel

    Erel Administrator Staff Member Licensed User