I have a old headlamp that I am experimenting with which has a solenoid to adjust the beam height, the solenoid is connected to a 3 pin connector and it basically allows the solenoid to rotate in two different directions. as there is 3 pins, i am guessing its not a simple reverse polarity thing to be able to make the solenoid rotate and adjust the beam position? any ideas how i can operate the solenoid to experiment with?
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