Precision Digital Temperature & Humidity Sensor Module (DHT22) sc16luu almost always used to detect

almost always used to detect whether a human has moved in or out of the sensors range

Working temperature:   -40°C to +85°C

Input common-mode voltage range includes ground

Aout: analog output   Vcc: 5V

Project: Wireless Product Tracking using barcode scanner and Arduino

Precision Digital Temperature & Humidity Sensor Module (DHT22) sc16luu almost always used to detectThis is DHT22 is a 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). Compared to the DHT11, this sensor is more precise, more accurate and works in a bigger range of temperature humidity. Features 3 to 5V power and I O. 2. 5mA max current use during conversion (while requesting data). Good for 0