Arduino 6 wheel rover Help! Urgent for school!!!

So i have just purchased this new http://www.hobbyking.com/hobbyking/store/__44610__Wild_Thumper_6WD_Multi_Chassis_with_Monster_Truck_Type_Wheels_Tires.html 6 wheel chassis to use with my arduino… But if you look at the photos the wires are quite thick and i am not sure how to connect them to my arduino if i want to control 3 at a time… control each side… can anyone help?

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You'll need to find or build an appropriate motor controller. Lots of places have them (Seeedstudio, Sparkfun, Pololu), but you'll need to figure out your current and voltage requirements first.

But if you look at the photos the wires are quite thick and i am not sure how to connect them to my arduino if i want to control 3 at a time.... control each side...

You could wire the three motors on each side in parallel, then control each side with an appropriate sized H-bridge.

Ok - based on what I could see on that HobbyKing product listing, that chassis has the 1:34 motors, which are detailed with specs at Pololu:

http://www.pololu.com/product/1573/specs

The motors are 6 volt motors with a stall current of 6 amps.

So - for three motors (per side) - that would be 18 amps of stall current. Here's what I would do:

Rather than purchasing an h-bridge driver setup for each side, instead purchase a couple of these:

http://www.hobbyking.com/hobbyking/store/__43377__HobbyKing_X_Car_45A_Brushed_Car_ESC_USA_warehouse_.html

Then run them off of 5-cell NiMH R/C packs (6 volts) - these may have to be custom made; you could also try some kind of LiFePo or LiPoly packs (though the latter will be an issue because a 2 cell pack will output over 7 volts - which will cause the motors to wear out much faster).

Using a pair of ESCs rather than an h-bridges means you can easily control the speed of the motors using the Servo library, plus such ESCs will likely be a cheaper option. Something to think about, anyhow...

SparkFun provides a already built setup ,checkout their controller. specifically for the 6wheel drive chassis BUT this is the new thing on the block they have that might be worthit for you! >> https://www.sparkfun.com/products/12075