Hi everybody, i'm building a quadcopter with Arduino uno and multiwii.I have a problem: Nothing happends. When i connect the Arduino uno to the computer i can see that it receives the signal from the receiver but the arduino Doesn't give the signal to the Esc. If i measure the potential of the signal of the Esc with the ground I see it's always the same even if I move the transmitter. Can anyone help me? These are the schematics.