This is a cross-post from the General forum, but I hope someone here can help me out. I'm using Ramps 1.4 and, all of the sudden, my servo leveling just stopped working. All other functions seem to be just fine, but I cannot get any output from the servo pins anymore. It was suggested that it was the voltage regulator on the Arduino, but the Arduino itself powers up from both USB and a 6v wall-wart adapter. From what I have read, I shouldn't be able to power up the Arduino from the 6V wall wart if the voltage regulator were faulty. Is this correct? Does anyone know what I might have fried, and how not to do it in the future?
