The DHT11 Sensor Relay Module is a remarkable device that combines temperature and humidity sensing capabilities with relay control functionality, making it an invaluable tool for various automation applications. This module is particularly favored by hobbyists and professionals alike for its ease of use and affordability.
Understanding the DHT11 Sensor At the heart of this module is the DHT11 sensor, a well-regarded digital sensor that measures both ambient temperature and relative humidity. The DHT11 has a specific operational range of 0 to 50 degrees Celsius for temperature readings (with an accuracy of ±2 degrees) and 20% to 90% for humidity (with an accuracy of ±5%). This makes it suitable for many everyday applications that do not require high precision, such as home automation and simple weather stations. The DHT11 communicates via a single wire protocol, which simplifies its integration with microcontrollers like Arduino and Raspberry Pi. This sensor is commonly chosen for projects where low cost and straightforward application are critical, making it ideal for beginners in electronics and programming.