So, what do you do when your Arduino ... DC-to-DC step-up regulator to maintain a steady stream of 5v. This article has some nice graphs showing the difference in performance between a 9v battery ...

Seeing this Toshiba motor drive ... pairing with an Arduino’ as it combines operation across 1.8 to 7V with up to 4A drive – so that is Li-ion batteries, 5V USB and 4xAA cells all covers, but sadly ...

The sled is powered by two DC electric motors driving ... the track to the bike motors. Two motor controllers enable basic speed control, while a beefy battery carries enough juice for multiple ...