Arduino Robot Project Questions

Dear all,

Hi, I am new to this forum and apologize in advance if I am repeating a question. I've done some browsing on the old website and couldn't find a definite answer to my question.

I am planning on building a robot platform. So far I have: 1. Arduino Uno 2. Tamiya 70168 Double Gear Box 4-Speed http://www.pololu.com/catalog/product/114 3. 70108 Tracked Vehicle Chassis http: http://www.robotcombat.com/products/0-70108.html

I am new to this and understand that driving the Mabuchi motor FA-130 from my Arduino would fry it. I'm looking into how I want to control it, and am debating on just buying a Arduino Motor Shield off of Amazon.

http://www.amazon.com/Arduino-Motor-Shield-R3/dp/B006UTE70E/ref=sr_1_4?s=electronics&ie=UTF8&qid=1327338869&sr=1-4

My questions are: 1. Does anyone know if I could make this work right off the bat by just wiring it all up? 2. Should I look into external power supplies, besides what is provided by Tamiya? 3. Is there a cheaper solution to what I want to do?

Thanks in advance, have a great day!

Kevin

If you have a 7.2V rechargeable battery you can feed that voltage to the Arduino Vin pin and to the Motor Shield. The motors will be easy to hook up: there are pairs of screw terminals for Motor A and Motor B. After that it's just software.

You would be much better off having separate power supplies for the Arduino and the motors - it almost invariably causes problems to run logic and motors off the same supply. Just common the grounds where the control signals pass to the motor controller.

Thanks!

So I know the operating voltage of the previously mentioned motor is 3V, but the arduino motor shield supplies I think a lower bound of 5 or 6. How do I program this to work?

Kevin

So I know the operating voltage of the previously mentioned motor is 3V, but the arduino motor shield supplies I think a lower bound of 5 or 6. How do I program this to work?

I'm not sure what you are saying/asking here.

http://arduino.cc/en/Main/ArduinoMotorShieldR3

Operating Voltage 5V to 12V

So, you can supply 7.2V. However, the input voltage (and corresponding output voltage) need(s) to be compatible with the motors you are using.