1 Using Relays and Relay Boards with the Raspberry Pi
Explains driving relays and relay boards from Raspberry Pi GPIO pins; people follow it as a wiring tutorial and ask whether 3.3 V logic safely triggers 5 V boards.
Topic
gpio
18 videos. Ranked by independent recommendations, not by views.
2 Raspberry Pi - How to use the GPIO
An early beginner tutorial on lighting LEDs and reading buttons from Raspberry Pi GPIO pins with the RPi.GPIO Python library.
3 RetroPie Add A Power Button / Switch Raspberry Pi 1 2 3
A popular tutorial for adding a working power button to a Raspberry Pi, pairing a switch with a small script that shuts the board down safely.
4 Pull Up Resistor Tutorial | AddOhms #15
AddOhms explains floating inputs and how pull-up and pull-down resistors fix them; preferred by some over written answers for explaining what causes the floating state.
5 Using a 16x2 LCD Display with a Raspberry Pi
Wires a 16x2 character LCD directly to Raspberry Pi GPIO pins with a contrast potentiometer; widely followed as a first display project.
6 Servo Control with the Raspberry Pi
A Raspberry Pi GPIO walkthrough that people follow to drive a servo with PWM pulses, also cited for basic LED wiring to the board's pins.
7 Raspberry Pi Automated lights with 8 channel relay, PIR motion sensor
A short tutorial on driving a relay from a Raspberry Pi to switch lights, adaptable to timers or sensors.
8 Raspberry Pi: 4-channel Relay step-by-step with example scripts for home automation
Shows a Raspberry Pi switching relays from its GPIO pins through a web page, with PHP calling Python scripts, often linked for home automation.
9 Raspberry Pi - GPIO & Python (2/9) - LED on & off
A beginner tutorial on wiring an LED to Raspberry Pi GPIO pins and controlling it from Python, typical of what newcomers are pointed to first.
10 Raspberry Pi - (Relay) Controlling mains electric
A Raspberry Pi demonstration of switching a mains lamp through a relay board, recommended as a clear explanation for anyone wanting to drive bigger loads from GPIO.
11 Controlling a DC Motor with the Raspberry Pi
A beginner tutorial on driving a small DC motor from Raspberry Pi GPIO with a transistor and PWM, suggested as a basics starting point.
12 Simple Button Input with the Raspberry Pi
A classroom-style walkthrough of reading a push button on Raspberry Pi GPIO, covering pull-up versus pull-down wiring before the Python code.
13 Raspberry Pi Tutorial 26 - GPIO DHT22 Digital Temperature + Humidity Sensor
Part of a numbered Raspberry Pi tutorial series, showing how to wire a DHT22 temperature and humidity sensor and read it from Python 3.
14 Ultrasonic Sensor with the Raspberry Pi
A guide to reading an ultrasonic distance sensor from a Raspberry Pi, including a resistor divider to drop the 5V echo signal for the GPIO pins.
15 Stepper Motor Control with the Raspberry Pi
A tutorial on controlling servo motors from Raspberry Pi GPIO pins, suggested as a natural next step once basic GPIO control feels comfortable.
16 Raspberry Pi - Getting Inputs from Buttons...
A beginner tutorial on reading a push button from Raspberry Pi GPIO pins in Python, used by one person as the basis for a doorbell camera project.
17 Use Raspberry Pi GPIO pins with SenseHat attached
Shows how to reach the Raspberry Pi GPIO pins with a Sense HAT fitted by swapping its header for a stacking header; recommended in Raspberry Pi help threads.
18 What are the input voltage thresholds for the Raspberry Pi's GPIO pins?
Measures the input voltage thresholds of Raspberry Pi GPIO pins; often cited for the roughly 1.2 V switching point, though it tests an older Pi model.
