Tuesday, 9 July 2013

RC Car Updates 7/9!!

I have another demo today. I have been making solid progress in this project. I am going to keep this one short, so let's get to it.

What's new:

  • The motor controller prototype that I finished building last month is finally being utilized. It is now doing what it is meant to do. The C2000 is fully interfaced with it over MotorA, MotorB and GND lines. I am now utilizing the vertical axis of the joystick to control the DC Motor. Click-in of the joystick does motor braking (very cool).
  • I purchased a DC motor. I bought it just so I could try out the system. It is very big, but not probably not the most efficient or the fastest motor. So it will do for now, but for the real deal, I am going to invest around 20-30 dollars for a very high speed DC motor. I will throw heat sinks on all transistors, so I should be able to pull 5 Amps continuously. (The only limitation is cooling...)
  • I purchased a new servo motor. This servo pulls 1.4 Amps when the rotor is moving so I had a hard time finding a power supply beefy enough to power the servo. When I try to power it from my PC or my 1-Amp phone charger, when the servo pulls current, voltage drops and the C2000 does a brownout reset, kind of funny :)
Aaaaannd here is the demo. Enjoy ;)


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