After recently receiving my Chinese Easydriver copies, I hooked one up to a coded arduino UNO and was messing around with a small stepper. I had wired it as per the instructions easily found around the net, using an adjustable wall power supply…
What happened next was likely due to my minimal electronics knowledge: at low power (3v) motor did nothing but vibrate somewhat, I checked all the connections and ensured it was wired correctly, then upped the voltage. Pretty much nothing happened until I hit 12v, and then noticed what I later learned was the voltage regulator glowing red and burning through itself. I unplugged the power and assume the board is now fried.
My question is whether this is a result of just stupidity when hooking the thing up, or is this somehow the cheap boards I bought?
What would have burnt out the voltage regulator? Is it possible that the colors on the wiring for the stepper were just wrong which screwed me up, and I had the wiring hooked up backwards (wrong pairs)? I thought the easydrivers were bulletproof way above 12v.