Recommended · for beginners
Raspberry Pi - How to use the GPIO
Why people recommend it
An early beginner tutorial on lighting LEDs and reading buttons from Raspberry Pi GPIO pins with the RPi.GPIO Python library.
In their words
This tutorial video shows the basic usage of the package.
asalamon74 on raspberrypi.stackexchange.com, Jun 2012. CC BY-SA.
I'm connecting a Raspberry Pi to an LED and this video tutorial says that I need 270 Ω resistors.
ohblahitsme on electronics.stackexchange.com, Aug 2012. CC BY-SA.
There is a good video about using GPIO here, and a google search should help.
ACarter on raspberrypi.stackexchange.com, Jun 2012. CC BY-SA.
