In the world of embedded systems, the DHT11 Sensor Relay Module stands out as a crucial component for many automation and control projects. This powerful combination of a temperature and humidity sensor (DHT11) and a relay module offers an easy-to-use solution for monitoring and controlling environmental conditions. Whether you’re building a smart home, an automated greenhouse, or an industrial application, understanding the functionality of the DHT11 Sensor Relay Module is essential for creating effective, low-cost solutions for controlling temperature-sensitive devices.
What is the DHT11 Sensor? The DHT11 sensor is a widely used digital sensor designed to measure the temperature and relative humidity in the surrounding environment. It provides both temperature and humidity data via a digital output, which simplifies its integration into microcontroller-based projects such as those using Arduino or Raspberry Pi. The sensor operates on a voltage range of 3.3V to 5V, making it compatible with most development platforms. The sensor’s specifications include： Temperature Range： 0°C to 50°C with an accuracy of ±2°C. Humidity Range： 20% to 80% RH with an accuracy of ±5% RH.