Circuit and Working Fig. 2 shows the circuit diagram of the humidifier. The system is built around an Arduino Uno (MOD1), a 5V SPDT relay module, a humidity sensor (DHT22), an ultrasonic humidifier, ...

As I've experimented and played with a lot of different sensors, I've discovered that these basic devices can be built for super cheap, and they're incredibly versatile. When you're done using an ...

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.

Three health and smart home experts monitored their air quality in different locations for several months. These are the surprising things we learned.

Mar 11, 2025 Nanostructured humidity sensor achieves 96% accuracy in identifying human behaviors through breath analysis (Nanowerk Spotlight) Each exhaled breath carries distinct signatures of human ...

Monitor temperature, humidity, and air pressure in every room with the Aqara Temperature Sensor. Optimize comfort, prevent damage, and automate your HomeKit smart home.

Xiaomi Mijia Smart Temperature and Humidity Sensor 3 Mini has launched for crowdfunding at $4, featuring a compact design, smart connectivity, and long battery life.

Nintendo says some Switch games aren't backwards compatible on Switch 2. We've got a good guess as to which ones won't work.

The CHT8320 and CHT8325 are temperature and relative humidity sensors. They both have the same interface, the CHT8325 is slightly more accurate. This library implements the most important ...