Mobile Controlled Robotic Vehicle without using Micro Controller

This is a minor baby project I have done during my Under Grad out of my own interest. This project involves the making of a small robotic vehicle, which is fabricated out of the conventional ways of building a robot.

Here we don't use a conventional programmed Micro controller, instead we use a small mobile phone to operate our robot. This is purely based on DTMF Technology - Dual Tone Multi Frequency Technology.

In here the frequency tones of various keys on keypad of mobile are assigned with different functions, in order to make the robot move in all possible directions. I had lots of fun while doing the project and learnt a lot.