Clap to Toggle LED! | Arduino Mic Sensor Project (Sound Activated Light)

Learn how to create a sound-activated LED toggle project using Arduino and a 3-pin microphone sensor (DO pin)! This fun and interactive DIY electronics project detects loud sounds like a clap and toggles the LED ON or OFF each time a sound is detected.

Perfect for beginners who are getting started with Arduino and want to explore input sensors and digital outputs in real-time.

🔧 What You’ll Learn:

How to connect a 3-pin microphone module (KY-037/KY-038) to an Arduino

How to use the Digital OUT (DO) pin to detect sound

How to toggle an LED based on sound input

How to fine-tune the microphone sensor sensitivity

💡 Hardware Used:

Arduino Uno

Microphone sound sensor (KY-037 / KY-038)

LED

220-ohm resistor

Breadboard + Jumper wires

📥 Full Code Included in the Video!
(github.com/ElectroSpark-Pragatheesh/electro_spark_arduino/commit/c9d0b91072f6d2cffd39a6132837a209be75a6a3)

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