Bit-Charger Radio Receiver Hack

This was a hack that I had worked on a while ago and was the first circuit that I built from scratch. I randomly wanted to have something that I made be remote controlled so I took apart a BitCharG by TOMICA and I added some things on.

This is a picture of the cars from BitCharG. A couple years ago, I got one of these as a birthday present. One day when I was cleaning my room I found this collecting dust in a pile of junk. Since this was a present, I didn't want it to go to waste so I decided to hack (utilize) it.

The images below are pictures of the finished product. You can tell from its crudeness that I never went back and refined it.

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The green board glued on to the back side is the part that came with the BitCharge. I made my own battery holder (I think that is the coolest part of it). Although this small board usually operates from a rechargeable miniature battery, since I found out that at its maximum charge it is 1.5V-1.4V so I just made a battery holder and stuck a AA in there.

Here is the schematic.

I attached transistors and diodes to the outputs of the radio receiver module which usually is used to operate the motor. The transistor makes it so that I can use an external power supply for what I am operating. This way you can operate something that uses a greater voltage or without draining the AA that is there.