Raspberry Pi - Wikipedia
RPi.GPIO Quick Reference updated for Raspberry Pi B+, A+ and Pi2B – RasPi.TV
GPIO Electrical Specifications, Raspberry Pi Input and Output Pin Voltage and Current Capability
Basic LED blinking w/ Raspberry Pi – PrinceTronics
Raspberry Pi Pinout - Pi My Life Up
Raspberry Pi® 4 Model B – Pinout - StudioPieters®
The Pi4J Project – Pin Numbering - Raspberry Pi Model B (Revision 2.0)
RPi.GPIO basics 2 – how to check what Pi board Revision you have – RasPi.TV
rpi.gpio - Plug a 5 V fan to GPIO 1 and 2 - Raspberry Pi Stack Exchange
The Pi4J Project – Pin Numbering - Raspberry Pi Model B (Revision 2.0)
Raspberry Pi Power Off Shutdown Switch Button – Chris Tech Blog
Simple Guide to the Raspberry Pi GPIO Header - Raspberry Pi Spy
The Pi4J Project – Pin Numbering - Raspberry Pi 2 Model B
Simple Guide to the Raspberry Pi GPIO Header - Raspberry Pi Spy
Raspberry Pi GPIO Pinout
The Pi4J Project – Pin Numbering - Raspberry Pi Model B (Revision 2.0)
GPIO Pinout – Rasp Pi 1 Rev1 and Rev2 » Raspberry Pi Geek
The GPIO Connector | Adafruit's Raspberry Pi Lesson 4. GPIO Setup | Adafruit Learning System
Raspberry Pi Documentation - Raspberry Pi hardware
RPi Low-level peripherals - eLinux.org
Raspberry Pi GPIO Pinout
Raspberry Pi LInux LESSON 26: Controlling GPIO Pins in Python | Technology Tutorials
