This DIY gas leakage detector is designed for educational and basic monitoring purposes. For critical safety applications, ...

An Arduino project implementing a security alarm system featuring PIN code access via a 4x4 keypad, status updates on a 16x2 LCD, motion detection using an HC-SR04 ultrasonic sensor, and ...

Step-by-step guide on designing and programming a custom I2C slave sensor device using Arduino. Trump overpowers Musk's ...

How to guide your school security customers beyond marketing buzzwords and toward solutions that are scalable, realistic, and ...

LoRa now supports mesh networking thanks to Meshtastic, an open-source platform enabling secure, low-power, long-range ...

A speaker is a transducer and like many transducers, it will work — to some extent — in either direction. A servo motor manages the deadbolt. An Arduino runs the whole thing.

Input is via a rotary encoder, hooked up to the Arduino Uno inside. This project really wins because the finish looks so amazing. The safe is constructed out of 3mm MDF, which is lasercut to shape ...

As the first metal-oxide gas sensor featuring multiple sensing elements on one chip, the SGP30 provides more detailed information about the air quality. Download all the source files and open examples ...