Note
GPIO
Topics: Embedded Systems
General-Purpose Input/Output (GPIO), as the name indicates, is a programmable pin on a microcontroller that can act as either an input or output for digital signals.
Common uses include reading buttons, triggering relays and switches, operating LEDs...
The typical workflow for GPIO is:
- enable the pin
- configure it as input/output
- read input value / set output high or low
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