If you’ve ever used an LED with a Raspberry Pi, then you probably know how GPIO outputs work. Code makes electricity flow through General Purpose Input / Output (GPIO) pins, passes through the LEDs, and lights things up. But have you ever tried doing the reverse? With pushbuttons, you can do the exact opposite. This tutorial shows you how to turn a GPIO pin into an input pin, listening to every button press you make!
Content
How Pushbuttons Work
4-Pin Pushbuttons
Using Pushbuttons with Raspberry Pi GPIO Pins
How to Use Pushbuttons
Hardware on Pushbuttons
Import Commands
Setup Commands
Looped Commands
Frequently Asked Questions
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Also read:How to Make Blinking LEDs With the Raspberry Pi How Pushbuttons Work A pushbutton is a type of switch. It has two separate conductive pins that prevent a complete circuit by being separate… … // Read more: original article.
