DHT11 Thermal and Humidity Sensor Board

This module combines the DHT11 sensor and other necessary components on a small PCB. The DHT11 sensor includes a resistive humidity measurement component, an NTC temperature measurement component, and a high-performance 8-bit microcontroller and provides calibrated digital signal output. It has high reliability and excellent long-term stability thanks to its special digital signal acquisition technique and temperature and humidity sensing technology.

DHT11 is a simple, ultra-low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure ambient air and outputs a digital signal on the data pin (no analog input pins required). It's pretty simple to use, but requires careful timing to capture data.

Features:

Low cost
3 - 5V power and I/O
2.5mA maximum current usage during conversion
Good for humidity values of 20-80% with 5% accuracy
Good for temperature readings of 0-50 °C ± 2 °C accuracy
Maximum 1 Hz sampling rate (every second)
Body size 15.5mm x 12mm x 5.5mm
4 pins 0.1" apart

Connection:

1. VCC: + 3.3V ~ 5V

2. Data: IO Port

3. GND: GND

Arduino Connection Diagram:

DHT11 Heat and Humidity Sensor Card

DHT11 Thermal and Humidity Sensor Board

Features:

Connection:

Arduino Connection Diagram: