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DHT22/AM2302 Digital Temperature and Humidity Sensor
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6,500RWF
In Stock
The DHT22/AM2302 Digital Temperature and Humidity Sensor is a low-cost, reliable, and accurate sensor used to measure temperature and humidity in various applications. It consists of a capacitive humidity sensor and a thermistor-based temperature sensor, and provides fast and accurate readings with high precision. It is easy to use and requires only a single digital pin for communication with a microcontroller or a single-board computer. The DHT22/AM2302 sensor is widely used in home automation, weather monitoring, HVAC systems, and other applications where temperature and humidity measurements are necessary.
Description
The DHT22/AM2302 Digital Temperature and Humidity Sensor is a popular and reliable sensor used to measure both temperature and humidity in a wide range of applications. It is a low-cost sensor that provides accurate and reliable readings and can be easily interfaced with a microcontroller or a single-board computer.
The sensor consists of a capacitive humidity sensor and a thermistor-based temperature sensor. The humidity sensor measures the amount of water vapor in the air and converts it into a capacitance value. The temperature sensor measures the ambient temperature and provides a resistance value that is used to calculate the temperature. The sensor also includes a small microcontroller that processes the readings and provides a digital output that can be read by a microcontroller or a single-board computer.
The DHT22/AM2302 sensor has a wide operating range of -40°C to 80°C for temperature measurement and 0% to 100% for humidity measurement. It has a high accuracy of ±0.5°C for temperature measurement and ±2% for humidity measurement. The sensor also has a fast response time, typically less than 2 seconds.
The sensor is easy to use and requires only a single digital pin for communication with a microcontroller or a single-board computer. The sensor is available in a small form factor and can be easily integrated into various projects. It is commonly used in home automation, weather monitoring, HVAC systems, and other applications where temperature and humidity measurements are required.
technical specifications for the DHT22/AM2302 Digital Temperature and Humidity Sensor:
- Supply Voltage: 3.3V to 5.5V DC
- Operating Range:
- Temperature: -40°C to 80°C
- Humidity: 0% to 100%
- Accuracy:
- Temperature: ±0.5°C
- Humidity: ±2%
- Resolution:
- Temperature: 0.1°C
- Humidity: 0.1%
- Response Time: less than 2 seconds
- Communication: Single-wire digital interface (using a proprietary protocol)
- Dimensions: 15.1mm x 25mm x 7.7mm
- Weight: 4g
- Mounting: Four mounting holes (2.7mm diameter)
- Operating Current: 0.3mA (measuring), 2.5uA (standby)
- Signal Transmission Distance: Up to 20 meters (depending on the wiring and environment)
- Supported Platforms: Arduino, Raspberry Pi, ESP8266, and other microcontrollers with digital input/output pins.
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