How to Control Remote Devices with Arduino! Buttons and External Device Electronics Tutorial!

Arduino Microcontrollers can be used to control remote devices using an Integrated Circuit known as an Optocoupler (Optoisolator). On the input side of the optocoupler you are powering or not powering an LED, which when lit up, closes a switch on the other side of the optocoupler! This allows you to have two electrically isolated circuits with one device.

I also use a sound detection module to use audio input to trigger the button, and those pieces can be found here:
https://amzn.to/3LKbbLA
The entire Arduino beginner kit I use in my beginner tutorial series can be found here:
https://amzn.to/3Jvd38n
The code shown in this build is at the following link:
https://github.com/plemaster01/ArduinoButtonControlSoundInput

Be sure to leave a like on the video, subscribe to the channel and consider checking out my Patreon link below:
https://www.patreon.com/LeMasterTech

Drop a comment if you have any questions, want to suggest something for future videos or want to roast me for saying Octocoupler instead of Optocoupler so many times!