AM2302 Sensor
Information
The AM2302 is a wired version of the DHT22, in a large plastic body. It 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 can be up to 2 seconds old.
Simply connect the red 3-5V power, the yellow wire to your data input pin and the black wire to ground. Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin.
There is a 5.1K resistor inside the sensor connecting VCC and DATA so you do not need any additional pull-up resistors
remark: From experience, this sensor is not very stable after a few days.
Setup
In order to use the AM2302 Sensor use the following settings:
Mandatory
- Hardware
- AM2302 Sensor
- Types
humidity, temperature
- Address
- Enter the physical pin number on which the device is connected
Ex:27This sensor does support (power management)
Other settings can be found at the sensor setup information