Hey Guys :)
I am giving Arduino a go for the first time, and have very limited knowledge of such electronics aspects, so any help would be greatly appreciated.
The design I have created uses an Arduino Mega, and a ComMotion by Dagu power shield. The design includes (needs to power) 2 ultrasonic sensors (rated at 5V, very small current), 1 servo motor (rated at 4.8 - 6V), 1 stepper motor (requiring 1.2A), and 2 geared motors (rated at 6V, 0.08-2.2A), also 2x mouse sensors (2V each). I have done a fair bit of reading with regards to how I should be powering the device, and am now extremely confused.
The conclusion seems to be to use rechargeable NiMH batteries, which I can source from hobbyking, (http://www.hobbyking.com/hobbyking/store/__342__85__Batteries_Accessories-NiMH_NiZN_Batteries.html), but I am completely unsure as to the voltage power I should be using. Some sites also suggest powering the Arduino + input motors with one power source, and the motor shield with another, and I am not sure if this is the right way to go.