Building Arduino projects with multiple sensors can unlock powerful environmental monitoring, automation, and IoT applications. From DHT11 temperature sensors to motion, gas, and light detectors, ...

By integrating advanced sensors and optimizing the power management of the ESP32, I've created a DIY smart lock that is both ...

Today is Worldwide Pinhole Photography Day – the perfect opportunity to rediscover the origins of photography and experiment ...

A light-sensitive crystal is opening the door to a new era of “light-written” technology. Arsenic trisulfide can be reshaped ...

Fine particulate matter in the air or nanoparticles in water—a remarkable new technology developed at TU Wien makes it ...

After testing this Garmin rival, I won't use a smartwatch without a built-in flashlight again ...

If you were to point to a single device responsible for much of Hackaday’s early success, it might be the Arduino Uno. The ...

Daniel Ansorregui has developed LightInk, an open-source solar-powered E-ink watch inspired by 90s solar digital watches. It ...

Infrared sensors that detect the short-wave infrared (SWIR) region can clearly recognize objects not only during the day and ...

The ESP8266 microcontroller is a favorite among makers for creating affordable, Wi-Fi-enabled sensor projects. Pairing it with a DHT22 temperature and humidity sensor is one of the easiest ways to get ...