Control DC motor easy
August 10, 2010
I what to finally make my firs robot, but I have one problem:
I found for my base nice RC car. Its perfect and also have power supply (6V 620mAh Ni-Cd ) with charger. Also servo in front. So its perfect, but it have very powerfull DC motor... Is can use more then 4 Amps of current (if wheels are blocked). If car is lifted and wheels are spinning free it uses about 0,4A. Then starts a moment use about 1 A. All my tests were with my 6V Ni-Cd battery.
What is the cheapest what to control it? O need only one direction (foward) and nothing fancy. I what to control it using my arduino board. But I need something like transistor or relay. Also it would be perfect if your suggesting parts can be available in my local store "Lemona" www.lemona.lt.
Thanks! If you need Additional info. Just ask :)
I found things like this one: http://www.dealextreme.com/details.dx/sku.13020
Is it OK for me ? And ist easy to use with arduino? Can ir control speed?
I add video of my motor Amps usage.