DHT11

DHT11 Basic Temperature and Humidity Sensor

The DHT11 is an entry-level, ultra-low-cost digital sensor for measuring basic environmental temperature and humidity. While it lacks the extreme precision of the DHT22, its ease of use, robust digital output, and ubiquitous library support make it the perfect starting point for learning environmental data logging.

• Temperature Range: 0°C to 50°C (±2°C accuracy)
• Humidity Range: 20% to 90% RH (±5% accuracy)
• Polling Rate: 1Hz (Once every second)
• Common Use Case: Indoor weather displays, basic HVAC triggering, and student IoT projects.