This project uses two Arduino Uno boards communicating via the I2C protocol. One acts as the master and the other as the slave, forming an alarm system using a PIR motion sensor, LEDs, and buzzers.

Using motion detectors and an Ardunio you can add a little extra wow to your Halloween displays this year. This article covers the circuits and the code to make that happen.

In this article, I have added three sensors with Arduino UNO and user can choose the required sensor with the help of keypad.

TK has combined a PIR with an Arduino to create a smart safety light for the house or workshop. Follow along as this gets built out into a more extensive project.

It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic switch called a relay, then plug in your fan, and you’re good to go.

Contribute to Naseer1808/Motion-Sensor-With-Voice-Alarm-Using-Arduino-Uno development by creating an account on GitHub.

Build a simple LPG gas leakage detector using Arduino and MQ-5 sensor. This beginner-friendly project features buzzer and LED alerts, circuit diagram, and complete Arduino code for home safety.

LPG is an alternative fuel used for daily use. Due to its low cost and ease of installation. This article covers an Arduino-based gas detection system that uses an Arduino UNO R3 board and gas sensors ...