- Terminus FE1.1 USB hub board: the solution to connect four USB devicesPosted 3 months ago
- Understanding the Mechanics of 3D PrintingPosted 4 months ago
- SDS011 the Air Quality SensorPosted 5 months ago
- NIXIE STYLE LED DISPLAYPosted 9 months ago
- TOTEM: learning by experimentingPosted 9 months ago
- Google Assistant Voice Controlled Switch – NodeMCU IOT ProjePosted 9 months ago
- Water Softener Salt Level MonitorPosted 9 months ago
- Sparkly Air SensorPosted 10 months ago
- Ultra sonic distance finder with live statusPosted 10 months ago
- Windows interface to have total control over lampsPosted 10 months ago
Humidity and temperature sensor

The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings