Let's Make Robots!

Working out battery requirements


I'm putting together a shopping list of parts for my second robot but I come from a programming background and my electronics knowledge is still in its infancy, so I'm not sure how to work out what batteries I need.

In my last robot I was able to power two lego motors and my Arduino from 8 x AA rechargeable batteries; but this was simply because the lego battery pack came in that configuration and I tried pluggin it into the Arduino and luckily it worked.

I'm now leaving the lego behind and want to run two of these motors:

Navigate around a table top using IR
Using a
  I've had my Arduino for over a year and had done very little with it until recently.  Mainly because I didn't have the tools or knowhow to actually build … Read more