DHT21/AM2301 Capacitive Digital Temperature and Humidity Sensor

Detailed Description: AM2301 is a digital temperature and humidity sensor module made using a capacitive humidity sensor, a high precision temperature sensor and an 8 bit microcontroller. Former name of this sensor was DHT21. This module provides extremely accurate outputs as it is digitally calibrated using the coefficients stored in the microcontroller. It has a wide operating voltage range, 3.3V ~ 5.2V makes its interface easy with a wide variety of devices. AM2301 sensor module can be easily interfaced with Arduino Boards, Raspberry Pi and other microcontroller units with its single bus interface. Features: Ultra low power Fast response Relative humidity and temperature measurement Full range temperature compensation Excellent long term stability Long transmission distance High accuracy No need of extra components Excellent long term stability Calibrated digital output Pin Out PIN No. Color Name Description 1 Red VDD Power (3.3V ~ 5.2V) 2 Yellow SDA Serial Data, Dual Port 3 Black GND Ground Applications: HVAC (Heating, Ventilating and Air Conditioning) Dehumidifier Testing and inspection equipment Home appliances Data loggers Humidity regulator Weather stations