I've been building my first robot, and have been looking for a way to make it more power efficient.
When hooked up to a power supply lower than 12V 8AA, the Arduino's power LED turns dim at every once and awhile, and the servos turn on and off continually, when they're not supposed to. It works fine with 8AA.
I also measure the input current. It was about 1A, which seems like way too much.
I've looked at the robots here on LMR and their are some that can power twice as much as I have hooked up to my arduino when connected to 4AA