DHT22 / AM2302 Digital Temperature and Humidity Sensor Module
- Product SKU: KG230
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Warehouse Details
Specification
Description
DHT22 / AM2302 Digital Temperature and Humidity Sensor Module
If you are wandering to build a device that detects temperature and humidity from the atmosphere, then This sensor is needed for you. you can Purchase this sensor from Robu.in at a reasonable price.The DHT22 Digital Temperature and Humidity Sensor Module AM2302 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).
It’s 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 first pin on the left to 3-5V power, the second pin to your data input pin, and the rightmost pin to the 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!
Note:
The image shown may vary from the actual product in terms of label and branding.
The color of connecting wire may vary. You may get any color while shipping.
Technical Details
- Item Type: Sensor
- Model Type: Temperature and Humidity Sensor
- Rated Voltage (V): 3 to 5.5
- Model No.: AM2302
- Humidity Range: 0-100%RH
- Operating Temperature (°C): -40~80°C
- Precision: Humidity measurement : ±2%RH, Temperature measurement: ±0.5°C
- Length (mm): 43
- Width (mm): 15
- Height (mm): 10
- Weight (g): 6
Features
- High precision
- Capacitive type
- Full range temperature compensated
- Relative humidity and temperature measurement
- Calibrated digital signal
- Outstanding long-term stability
- Extra components not needed
- Long transmission distance
- Low power consumption
- 4 pins packaged and fully interchangeable
Applications :
- Weather Monitoring - Measures temperature and humidity.
- HVAC Systems - Controls environmental conditions.
- Smart Homes - Automates based on temperature and humidity.
- Industrial Control - Regulates factory conditions.
- Agriculture - Monitors climate for crops.
- Medical Devices - Ensures optimal environmental conditions.
- Data Logging - Records environmental data for analysis.
Integration with Arduino
Sample Code
Physical Attributes
- L x W x H (mm): 43 x 15 x 10
- Weight (gm): 6
Package Includes
- 1 x DHT22 / AM2302 Digital Temperature and Humidity Sensor Module
- Connecting Cable
Customer Reviews
Lots of examples on how to make these work online. Works exactly as expected.
I used this with a Heltec WiFi kit 32 OLED board. It is accurate and works great with the DHT lib as a DHT22. Have no issues with it at all and the price was excellent.
using Adafruit this works perfectly on Raspbian
Took a little while but got it working.
Unfortunately, I don’t have a controlled environment where I can test the accuracy of the devices. But they hooked up and ran without problem. I’ve got one attached to an ESP 8266 and have seen no issues whatsoever.
Hooked it up and it started sending data immediately.
Very easy to use and program. Accuracy is better than the DHT11
worked as expected
Works well. Easy to connect to nodeMCU.
I used these to replace some DHT11 modules which were wildly inaccurate (especially for humidity). These DHT22s work much better.
