As I might have mentioned
, I'm starting out building a bot. I think I'm experiencing a problem with my LCD due to power limitations.
I'm using a 9V PP3 at the moment (I know, I know, evil, but it's what came with the Arduino kit) and a set of four 1.5v random AA batteries I already had.
The stuff I'm running off this will be:
2x little motors, rated at 6V but happy up to 9V, 40mA free-running
1x little servo, rated at 6A, not sure about the current
1x PING))), rated at 5V, 20mA
1x Graphical LCD with serial backpack, rated 6V-7V, 220mA
I'm still struggling with battery selection, I'm still in the "if it fits in my remote it's okay" stage, not really had to think about mAh and clever stuff before