Line Following Robot

Parts

1.transistor switch circuit .

2.relay switch :2

3.ir led and ir photo diode :2 pair

4.470 ohm resistor :4

5.diy robot chassis

6.battery

Hi welcome to the second part of five part robot series. As youcan see i am using the same circuit that i used in Light following robot.i just added relay switch in each channels output.you can watch making/demo videos on my CHANNEL CLICK HERE. and you can directly SUBSCRIBE MY CHANNEL CLICK HERE

I build a sensor circuit with a pair of ir photo diode and ir led ( for each channel).

Here is the diagram of the circuit.in this circuit you can see that i motors are powered by separate battery.

Now final assembly of robot

And now lets test it.

This is not the most sophisticated robot but i am sure this is the easy to make robot.

Thanks.