DHT Sensor - Working Principle, Components and Program Explained
Hii all, In this video I have explained in detail about the working principle of DHT sensor, its internal components and program to interface with Arduino Uno.
👉 Temperature Range
DHT11: 0°C to 50°C
DHT22: -40°C to 80°C
👉 Temperature Accuracy
DHT11: ±2°C
DHT22: ±0.5°C
👉 Humidity Range
DHT11: 20% to 80% RH
DHT22: 0% to 100% RH
👉 Humidity Accuracy
DHT11: ±5% RH
DHT22: ±2–3% RH
👉 Sampling Rate
DHT11: 1 reading per second
DHT22: 1 reading every 2 seconds
👉 Cost & Performance
DHT11: Low cost, basic performance
DHT22: Higher cost, high accuracy & reliability
Thanks for Watching!!!!