Practical Electronics & Circuits 101 – Switches & Relays

The 11th video in the series Practical Electronics & Circuits 101, where I explain the basics of the theory behind circuits with a focus on using this knowledge for actual projects. This episode focuses on switches and relays. Subscribe and stay tuned for more lessons and projects. Electronics 101 Playlist: https://youtube.com/playlist?list=PLlLR7EXXYZ0YcMaDjlh_1T-_dr_zAZpFM Transistor Video: https://youtu.be/I6arUTJ045w Raspberry Pi Playlist: https://www.youtube.com/playlist?list=PLlLR7EXXYZ0bZl0azi5-OelwdpHxFYX5G Python GPIO Guide: https://phazertech.com/tutorials/rpi-gpio.html Relay module boards on Amazon: 1 channel: https://amzn.to/3TJF02r 2 channel: https://amzn.to/4d681w4 4 channel: https://amzn.to/3Zdgk5T 8 channel: https://amzn.to/3ZdgoCF 16 channel: https://amzn.to/4cZmLwo SPST toggle switches: https://amzn.to/47kTzPx DPDT toggle switches: https://amzn.to/4egap4k These are affiliate links where I earn a small commission for purchases at no extra cost to you. This is the easiest way to help the channel, thank you! Amazon: https://amzn.to/484HUnU Website: https://phazertech.com/ Donations Buy me a coffee: https://www.buymeacoffee.com/phazertech Chapters: 00:00 Intro 01:05 Simple SPST & SPDT switches 04:24 DPDT switches and adding more poles 06:26 Switch power ratings 07:16 Overview of relays 08:58 Relays vs transistors when used as a switch 12:51 Coil voltage & how to use a relay 16:47 Simple example controlling a relay with a Raspberry Pi 24:07 Outro