Project Overview This project creates a smart plant watering system that reminds you to water your plants when motion is detected nearby, or automatically waters based on soil moisture. It’s perfect for indoor plants that are easily forgotten. Difficulty: Beginner/Intermediate…

Project Overview This project creates a humane dog bark deterrent that uses ultrasonic sound to discourage excessive barking. The system activates only when motion is detected, saving battery life and preventing constant noise. When the sensor detects a dog (or…

Project Overview This project creates a self-powered PIR motion sensor that runs entirely on solar energy. It’s ideal for remote locations where running power cables or changing batteries is impractical. The system stores energy in a supercapacitor or rechargeable battery,…

Project Overview This project creates a smart night light that turns on when motion is detected and gradually dims over time. The light uses an RGB LED or LED strip and features smooth fade-out effects, making it perfect for bedrooms,…

Project Overview This project creates an occupancy counter that tracks how many people are in a room. Using two PIR sensors placed at a doorway, the system detects direction of movement (entry vs. exit) and maintains a count of current…

Project Overview This project creates a basic home security system that sends SMS alerts to your phone when motion is detected. The system uses an Arduino Uno, a PIR sensor, and a SIM800L GSM module. It’s ideal for monitoring remote…

Project Overview This project creates a smart mailbox notifier that alerts you when mail is delivered. A PIR sensor detects motion inside the mailbox when the mail carrier opens the door or inserts mail. An ESP32 sends a notification to…

Project Overview This project creates an automatic pet feeder that dispenses food when your pet approaches the feeding station. The system uses a PIR sensor to detect your pet’s presence and a servo motor to open a food hopper. You…

Project Overview This project creates an automatic staircase lighting system that turns on LED strip lights when someone approaches the stairs and turns them off after a set delay. Perfect for improving safety on stairs at night while saving energy.…