BEAM RobotsPower-Smart Head Version 3 It’s been a while since I’ve built any BEAM robots, but some wet weather prompted me to get back to the soldering iron and make a new bot. This is another solar powered “power-smart” head, built around a 74AC240 chip. The circuit is the Solar Power Smart Head circuit. The motor is a nice geared 141:1 MicroMo motor I got off Ebay. It has a cog attached to the spindle, whi
