Arduino Mega, LCD 128x64, Keypad 4x4, LED (x5), servo motor, perforated circuit board, 12V adapter, 12V to 3.3V/5V buck step down power supply module, maze box, (data acquisition interface) A total of ...

Bug Description I've just recently got a replica arduino mega, with a ramps 1.4 shield, a power supply and a LCD (RepRap 12864). I plugged everything in, and the LCD is just blue. I've already tried ...