What Is a Power Button and What Are the On/Off
The LED connected to the RB0 port of the PIC will simply turn on and off when the user presses or releases the pushbutton connected on the RA0 port of the PIC accordingly. In Action. The Circuit. The circuit is very simple. When the pushbutton (NO) is released, the input RA0 is taken LOW through the 10K resistor.
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