DHT21 Digital-output relative humidity & temperature sensor/module,connect with single-bus-line Sensor AM2301
Digital Temperature & Humidity Sensor
This temperature & Humidity sensor is a wired version of the DHT21, 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.
- DHT21 is the former name, new name is AM2301
- 4-pin package
- Ultra-low power
- No additional components
- Excellent long-term stability
- All calibration, digital output
- Completely interchangeable
- Long distance signal transmission
- Relative humidity and temperature measurement
Specifications:
- Type: AM2301
- Accuracy resolution: 0.1
- Measurement range: 0-100%RH
- Temperature measurement range: -40℃ ~ +80℃
- Humidity measurement precision: ±3%RH
- Temperature measurement precision: ±0.5℃
- Monobus digital output
- 20cm-cable
- Dimensions: 2.32 in x 1.02 in x 0.55 in (5.9 cm x 2.6 cm x 1.4 cm)
Connection:
This Sensor has 3 wires, connect these wires to your Arduino/Crowduino Project as following:
Sensor | Arduino/Crowduino |
---|---|
Red | +5V |
Black | GND |
Yellow | Digital I/O |
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