
I
have some broken small RC car without remote control and I was
interesting to hack the H-bridge of these car and connect them to micro
controller circuit in order to make for example a line follower robot
or obstacle avoidance robot.
The common circuit of RC car consist of :
1-Receiver circuit which is define the frequency that the car will work on( for example 40Mhz or 27 Mhz).
2-Controller chip (De-Multiplexer circuit).
3-Dual H-bridge circuit for driving two DC motor (one for backward ,forward and the other for the steering).
you can see that from the above picture, it's a little complicated to
find the base...