DC Motor Driver

I wrote a simple driver a few nights ago for the single DC motor driver FAN8082 by Fairchild. This is a very straight-forward 8 pinned IC. The motor is controlled by two inputs, and can be set to spin forward, reverse, or brake. Today I setup a breadboard on the car and wired the microcontroller circuitry to the 4 AA batteries housed underneath the car. After some experimentation with the motor driver, I gave the DC motor its own dedicated 9V supply :-)

Yes it spins very fast (relatively speaking to the stock setup), but I think it will work out fine. The DC motor driver is actually very neat because you can control the speed of the motor by changing the voltage on the Vctl pin (I left it unconnected).

Here is a short video of the motor spinning forwards and backwards, toggled by a simple button connected to the microcontroller: video

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1 Comment »

  1. Vladimir Tess Said,

    August 23, 2007 @ 9:02 pm

    Nice job. Do you have any schematic on it?

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