arduino M690 1 Channel 1 Route MOSFET Button IRF540 + MOSFET Switch Module Electronic Components Electronic Hobby Kit

The circuit is connected at one end of the wire is slightly controlled some trouble. To control a 12V LED lights, for example, First, the positive (+) and negative (-) between the connected power； Then connect the positive LED lights with the module connected to the positive (+), LED lights with the anode connected to the switch 1 (S1) on f there are other LED lights with the need to control, Just the same cathode lights with LED module is connected to the positive (+), LED lights with the negative electrode in turn is connected to the switch 2 (S2), switch 3 (S3), the switch 4 (S4) on； The corresponding control port Arduino sensor expansion board connected, you can control the 12V LED lights brought by Arduino. Experiment, we picked up two LED lights。