Hi!
I got an arduino pro mini and upload basic sketch with FTDI programmer without any problem. After that I connected HMC5883L compass and upload example also without problems - all worked perfectly. After board power of I tried upload another sketch and get stk500_recv(): programmer is not responding. Pushing reset button makes no effect - looks like board freezes after it is powered.
How to fix it?
Thanks.
HMC5883L_Example.ino (4 KB)