Hi Everyone, amazing forum community and wealth of information you have here!

I am seeking a little bit of electronics help here.....

I have a nice little HL pershing tank, unfortunately the speed control on one side of the board is blown.

Basically, rather than replace the HL board, i wanted to get some autonomy going on in the tank, using something like a picaxe, Arduino, oopic or a similar type of microprocessor along with Ultrasound/infrared etc sensors ....

SO....im trying to figure out what kind of current the motors in the pershing draw up to stall? i dont think microprossesors could handle that king of load, and wouldnt want to be blowing expensive little things like those away! I am vaugely aware of H-bridges, and am also trying to figure out if i can use a dual h-bridge to power the motors, in turn being controlled by the microprocessor.


.....At the moment i have the black capped (stock) motors in there, and i also have a set of white cappped motors too. I would like to be able to use either, as i also have a walker bulldog with metal gearing and tracks which i would also like to convert....

Any advice would be much appreciated!

thanks,
chris