I've got a new Mega2560, but I am having trouble uploading the code. Any idea whats wrong?
Arduino: 1.8.2 (Windows 10), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)" avrdude: verification error, first mismatch at byte 0x3bb1 0xac != 0x57 avrdude: verification error; content mismatch avrdude: verification error; content mismatch Sketch uses 21446 bytes (8%) of program storage space. Maximum is 253952 bytes. Global variables use 1413 bytes (17%) of dynamic memory, leaving 6779 bytes for local variables. Maximum is 8192 bytes. This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.