Recently in the use of the module in the mobile phone to the stm32 bluetooth control and data acquisition module, the master-slave communication between the serial port of the computer assistant tried no problem, but the host a serial port from a computer assistant sends commands to the stm32 from machine, stm32 has been not receive instruction, but the use of mobile phones on the bluetooth serial assistants send instructions, 32 can get orders, but from 32 above feedback to the host's instructions, mobile phone has been not receive feedback,
(ps: module is a serial port communication mode between the stm32 and connection, if there is problem)

CodePudding user response:

Number of bytes stm32 feedback? Try using a bluetooth serial port assistant app, or change a mobile phone