DHT11 Temperature and Humidity Sensor with Accurate Temperature and Humidity Monitoring Ideal for Home Automation, Weather Stations, and HVAC Systems

The DHT11 is a widely used and affordable digital temperature and humidity sensor that is commonly used in projects where monitoring environmental conditions is important. Here’s a detailed description of the DHT11 temperature and humidity sensor:

• Sensing Capabilities: The DHT11 sensor can measure ambient temperature within a specified range, usually between 0°C to 50°C (32°F to 122°F) with a typical accuracy of ±2°C (±3.6°F). It can measure relative humidity (RH) within a typical range of 20% to 80% RH with an accuracy of ±5%.
• Sensing Principle: The DHT11 sensor uses a resistive humidity measurement component and a thermistor for temperature measurement. Changes in temperature and humidity cause variations in the resistance of the sensing elements, which are then converted into digital values for temperature and humidity readings.
• Communication Interface: The DHT11 sensor communicates over a simple, single-wire digital interface, making it easy to integrate with microcontrollers. It provides a digital signal output using a specific communication protocol that enables the transfer of temperature and humidity data to the microcontroller.
• Integration and Interfacing: The DHT11 sensor is relatively easy to interface with popular microcontrollers like Arduino, Raspberry Pi, ESP8266, and others. Libraries and sample code are readily available for easy integration into projects.
• Applications: The DHT11 sensor is widely used in various applications, including weather stations, indoor climate monitoring, HVAC systems, agriculture, and other projects requiring temperature and humidity data for decision-making.