DHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound that has been calibrated digital signal output of the temperature and humidity sensors. Application of dedicated digital modules collection technology and temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability. The sensor includes capacitive sensor wet components and high-precision temperature measurement devices and is connected to a high-performance 8-bit microcontroller. The product has excellent quality, fast response, strong anti-jamming capability, and cost-effectiveness. Standard single-bus interface, system integration quick and easy. Its small size, low power consumption, and signal transmission distance of up to 20 meters make it the best choice of all kinds of applications and even the most demanding applications. DHT22 has higher precision and can replace the expensive imported SHT10 temperature and humidity sensor. It can measure the environment's temperature and humidity to meet high demand. The product has high reliability and good stability. If it's used and combined with a special sensor Arduino expansion board, it will be easily implemented the interactive effect related to the temperature and humidity perception. Note: DHT22 digital temperature and humidity sensor is designed for analog sensor interfaces. The analog port will be used as the digital which will not occupy the original digital port of the Arduino. The lines of the sensor can transform the analog function to digital that can be used on the digital port. DHT22 temperature sensor tutorial: ESP32 Arduino: Getting temperature from a DHT22 sensor ESP32 Arduino: DHT22 Minimum Sampling Period ESP32 Arduino: Getting humidity measurements from a DHT22 sensor ESP8266 Arduino Tutorial: Getting temperature and humidity with a DHT22 sensor Type Selection of Temperature Sensors Name Gravity: I2C Non-contact IR Temperature Sensor For Arduino Gravity: Analog LM35 Temperature Sensor For Arduino Gravity: Waterproof DS18B20 Sensor Kit Gravity: DS18B20 Temperature Sensor Gravity: Analog High Temperature Sensor SKU SEN0226 DFR0023 KIT0021 DFR0024 SEN0198 Operating Voltage 3.3V/5V 3.3V/5V 3.0V~5.5V 3.3V~5V 3.3V~5.5V Operating Current 2.7μA 2.7μA
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