DHT11 (Temperature Humidity Sensor Board)

Parameters:

• Supply voltage: 3 V to 5.5 V
• Average current consumption: 0.2 mA
• It does not require additional external components
• Temperature
  • Measuring range: 0 – 50 °C
  • Resolution: 8-bit (1 °C)
  • Accuracy: 1 °C
  • Response time: 6 – 15 seconds (usually 10 seconds)
• Humidity:
  • Measuring range: 20 – 90% RH
  • Resolution: 8-bit (±1 % RH*)
  • Accuracy ±4 RH* (at 25 °C)
  • Measuring range: 6 – 30 sec

*RH– relative humidity is expressed in percentages. It is the ratio of actual humidity in the air to the maximum number that air can keep at a given temperature.

Description

The module includes a popular sensor for measuring temperature and humidity. On the board are also, required for proper operation of the system: a resistor and a capacitor to filter the supply voltage. The sensor can be controlled using a microcontroller or any commissioning set, for example, Arduino

Pins are popular gold pin connectors (2.54 mm pitch) for connecting the sensor via wires or directly attach to the breadboard. The set includes three colorful wires.

Connection example

The system contains passive components necessary for the proper operation of the sensor. The module is sufficient to connect via wires, to any microcontroller or commissioning set:

• VCC ( + ) – supply voltage from the range: of 3 V to 5.5 V
• GND ( – ) – the ground of the system
• OUT – digital output connected to the input of the microcontroller