An interesting point of this project is that it is used not only for a robotics project but also for automation projects in general, where it is desired to make the controlled relay activation from joysticks. It can also result in an excellent shield for microcontroller using sensitive 5 V relays or relay interfaces. See that in this case we have the application in the control of two motors, but the circuit can be easily modified taking advantage of the NO and NC functions of the relays.
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