I’m using the HC-05,6 & 8 all work fine. I’m not sure this is a bluetooth problem but here goes.
I send an 0xA4 the the script stops as it should. 0xA3 and 0x93 work. I can not restart with 0xA7 & routine #. All commands more than a byte cause a stack overflow as do some 1 byte commands. I tried this in Pololu terminal and the 0xa7 also failed as well some other commands. UART Setting set at fixed baud rate of 9600 both bluetooth and the terminal. Any ideas?