Raspberry Pi Workshop - Chapter 2 - Use GPIO to Connect to the World Around You

The full Raspberry Pi Workshop in step-by-step format can be found here https://core-electronics.com.au/tutorials/raspberry-pi-workshop-for-beginners.html

GPIO or General Purpose Input and Output is the interface that allows your Raspberry Pi to connect to the world. The pins can drive a voltage, sink current, and read voltage levels. Complex digital communications can also take place on the GPIO.

Before we begin, a word about connecting to the GPIO: The pins in the GPIO header are connected directly to the Broadcom processor that is the heart of a Raspberry Pi. You should never prototype circuits while your Raspberry Pi is powered, because a short circuit - no matter how brief - might immediately fry your Pi.






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