Arduino Projects

This is a repository of short Arduino projects I made for practice.

Table of Contents

• Clap On Clap Off Project
  • Summary
  • Parts List
  • Circuit Diagram
  • 3D Model and Housing
  • Challenges and Learnings
  • Potential Improvements

Clap On Clap Off Project

Summary

• The code can be found here: clap_on_clap_off.ino

• The goal of this project was to replace my family's old Clapper device that had always been used to control Christmas tree lights. The old clapper was failing so I decided to make a new one.

• The Arduino waits for 2 successive claps before toggling the relay, which in turn toggles the power strip outlets and the devices connected to it.

• This project also required developing a 3d model to print and house the electronics as well as soldering to rewire the power strip.

Parts List

• Arduino Nano
• power strip
• relay (SONGLE SRD-5VDC-SL-C)
• microphone sensor (MAX4466)
• 3D printed enclosure
• wiring

Circuit Diagram

3D Model and Housing

File Locations: solidworks, stl

The electronics housing connects to the bottom of the power strip and neatly hides all the electronics.

Images:

Results

Challenges and Learnings

• Adjusting the sensor gain, sensitivity values, and requiring multiple claps to prevent false positives negatives
• Wiring higher voltage circuits

Potential Improvements

• Adding sensitivity control inputs for users
• Adding other forms of control besides audible cues