Let's Make Robots!

magic blue smoke

Magic blue smoke

As part of a mixed set of robot parts I bought on ebay I received this Dagu 4-Channel Motor Controller. On the back there was a trace broken so I soldered in a wire to replace it and hooked it up to the Rover5 (from the same set). Wired it to an Arduino UNO and programmed it to run a motor test. Applying power to the board, before the Arduino had even started PWM, one of the driver ICs began smoking.