I am a programmer and am just getting into robotics/electronics. I would like to build an Arduino-based robot that I can control from an app on my Android phone. I am planning on the robot having 4 motors (actuators?) controlling 4 wheels (1 tank tread/belt on each side; 2 wheels per tread/belt).
I am trying to determine how "heavy duty" my motors need to be, and not sure where to start in my calculations. Here's some constraints/preferences:
- Speed is not critical, maybe top-speed of ~2mph
- It's tough telling how heavy the robot will be at the outset, but probably no more than 3 - 5lbs
- Looking for lowest power consumption possible (given the above constraints) to provide max battery life
- I'd prefer < $20/motor
After a cursory review of several websites, it looks like motors are measured by the following properties:
So we have a ~4lb robot distributing that loads over 4 motor-actuators with a desired top-speed ~2mph. I'd like the motors to meet those capabilities as well as run on as little power as possible, all within the $10 - $15 per motor price range.
asking for other members to make suggestions on particular models ("give a man a fish"), what I'm asking is what calculations most robot hobbyists would use in this scenario to take all these factors into account and make an educated guess on what type of motor I need ("teach a man to fish"). So, where do I start?!?
Thanks in advance.