DHT11 Temperature and Humidity Sensor module

DHT11 Temperature & Humidity Sensor features a temperature & humidity sensor complex with a calibrated digital signal output. By using the exclusive digital-signal-acquisition technique and temperature & humidity sensing technology, it ensures high reliability and excellent long-term stability.

This sensor includes a resistive-type humidity measurement component and an NTC temperature measurement component, and connects to a high performance 8-bit microcontroller, offering excellent quality, fast response, anti-interference ability and cost-effectiveness.

Data sent by DHT11 consists of decimal and integral parts. A complete data transmission is 40bit, and the sensor sends higher data bit first.

Data format: 8bit integral RH data + 8bit decimal RH data + 8bit integral T data + 8bit decimal T data + 8bit check sum. If the data transmission is right, the check-sum should be the last 8bit of "8bit integral RH data + 8bit decimal RH data + 8bit integral T data + 8bit decimal T data

This module makes is easy to connect the DHT11 sensor to a microcontroller as includes the pull up resistor required to use the sensor. Only three connections are required to be made to use the sensor - VCC, GND and Output.

Features:

• Low cost, High reliability and excellent long-term stability
• Supports one-wire interface
• Input Voltage: 3~5.5V
• Measurement Range: 20-90%RH, 0-50℃
• Accuracy: Humidity ±5%RH, Temperature ±2℃
• Resolution: Humidity 1%RH, Temperature 1℃
• Pin Definition: GND,VCC,Signal

Applications:

1. Temperature and Humidity measurement
2. Local Weather station
3. Automatic climate control
4. Environment monitoring

Country of origin : China

Note: The pins are presoldered to the module.

DHT11 Sensor Module

3 Pin Female-Female Wires