Introduction: Arduino Sound Sensor With LED

A very simple Arduino project with a sensor that detects sound and light up an LED.

Step 1: Gather Materials

Materials Needed:

Arduino Uno - x1

Male to Female Jumper wires - x3

Any Color LED - x1

USB - Arduino Port Cable - x1

Big or Small sound sensor - x1

Step 2: Assemble Circuit


AO (on sound sensor) to Analog Pin 2 on Arduino Board

+ (on sound sensor) to 5V on Arduino Board

GND (on sound sensor) to GND on Arduino Board

LED short leg to GND on Arduino Board on opposite side of wire connections. Long leg to digital pin 13 on the Arduino Board

Step 3: Write and Upload Code

Here is the code:

Plug cable into Arduino Board and upload the code

Step 4: How to Use the Project

Once you have uploaded the code to your Arduino board, if assembled correctly, a red LED should come on from the sound sensor. When you clap or make a noise the LED should come on. If this does not work, you can use a flat head screwdriver to adjust the sensitivity on top of the blue box on the sound sensor.Once this is done and you clap or make noise, the LED should light up. If you have any questions you can email me here > Thanks! Please follow me for more!

Arduino Contest 2017

Participated in the
Arduino Contest 2017