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I am a quad copter hobbiest. The quads use very small 12 vdc brushless direct drive motors and are controlled with an arduino style auto pilot that sends motor speed signals to the ECS modules on each of the four motors. I want to build a large quad copter using 325-340 vdc fisher paykel brushless direct drive motors. Where can I get an ECS that will handle this kind of voltage and still be controlable with the 5vdc signal from the Arduino based auto pilot? Or where could i get a schematic so I could build my own?
