take the code from a microcontroller

hello everyone. i need know if is possible take the code from a ATMEGA128A microcontroller . it’s in my board NHduino UNO. Thanks

Did you try a search (top right hand corner of the screen)? This question gets asked fairly frequently - you are the second this week that I know of.

If you are hoping to recover the C/C++ code, that is not possible. All you get is the machine code.