One motor with PCB power card (no part of the ABServo Project).
It is the motor that drags the iron gate through a rack system. This motor has a PCB control card that gives the power, controls the limits of race as well as the speed of the engine, among other functions. This card receives a return signal from the ABServo Sim control card that indicates that an SMS or call authorization arrived to open the gate, closing the control relay. At that moment it starts in an opening cycle until it reaches the end of the race. Then the engine turns to the contrary to close the gate until the other end of the race. thus the opening / closing cycle ends.
Gear rack system