Sir,I have the code and the | Microcontroller › AVR › A Car With Keyboard Input › Sir,I have the code and the April 20, 2013 at 1:42 am #9528 Mridul AgarwalParticipant Sir, I have the code and the circuit. Circuit can be found at link . Code is in the next step. My question is that can Matrix Keypad be used in this for input. Matrix keypad that I have can be found at link.