Questions about arduino, rover 5, shields
November 28, 2012
I'm an absolute beginner to making robots.
I'm looking to make a robot using the Rover 5 (4 motor with 4 encoders), and an arduino as the brains.
Based on what I've read, to drive all 4 motors as well as read all the encoders, the arduino UNO doesn't have enough pins, so an Arduino MEGA or Red Back Spider is needed. as well as the Dagu 4 Channel 5-12V, 2A Brushed DC Motor Controller, or something similar which provides enough power to the motors, and communicates with the arduino (or spider).
First question is, is the above correct?
My second question is if I'm using the above set up, do I need another shield to hook in a Sharp IR sensor or a display to read out the data, such as
The Robot Builder's shield for arduino :
I don't yet understand the purpose of a shield in this instance; why can't an IR sensor be hooked up directly to the arduino (or spider) ?