AM2301A is a low cost, excellent performance and robust relative humidity and temperature sensor with calibrated digital signal output.
It is used in automatic temperature control applications, air conditioning, weather stations, home applications, humidity and temperature regulator.
SPECIFICATIONS AND FEATURES
Operating voltage: 3.3V – 5.5V
Temperature: -40°C to 80°C
Humidity: 0% to 99.9% ±9 %RH
Temperature accuracy: ± 3 °C
Humidity accuracy: ±3%
Packaging material: ABS
Current consumption: 1mA – 1.5mA
Sensing time: 2s
Wire length: 23cm
Dimensions: 26.6mm x 53.2mm x 13.3mm
VDD : Pin (+) Connection to power supply from 3.3V to 5.5V
GND : Pin (-) Connection to GND or Ground of the power supply
SDA : Serial data, bidirectional
DOCUMENTATION AND RESOURCES
How to connect the AM2301A with Arduino UNO?
Connect the AM2301A sensor to the Arduino UNO board, you just have to connect the SDA pin to a digital pin and feed it with the 5V provided by the Arduino board and finally connect the GND terminal to GND.
The following image shows how to make the connections between the sensor and Arduino UNO.