TUTORIAL: How to Setup & Code A Relay - Arduino, ESP32 & ESP8266 (Part 1) Quick + Simple!

In this small series, I explain a little bit about relays, show you how to properly set up and code a relay with a microcontroller. It's not as simple as just wiring it up - you need to add two additional components.

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• #howto_style
• #arduino
• #esp32
• #esp8266
• #relay
• #songle
• #5v
• #switch