Features:
The main chip is GY-213V-SHT21 (can replace HTU21D SI7021 HDC1080);
The humidity and temperature sensor is an for Arduino compatible sensor board that can carry the SHT21 digital humidity and temperature sensor from Sensirion. It has a 4-pin interface that can directly communicate with the analog pins on the for Arduino. SHT21 uses a capacitive sensor element to measure humidity, while temperature is measured by a band gap sensor. The two sensors are seamlessly coupled to the 14-bit ADC, and then the digital data is transmitted to the Arduino through the I2C protocol. Due to the small size and low power consumption of the sensor, it is suitable for any application.
In order to optimize the accuracy of temperature and humidity readings, the SHT21 sensor is placed on the top of the board to isolate it from the heating circuit. The four pins of the two sensors are ground and +5V; the other two are the clock and data pins that make up the 2-wire serial interface. The board has 5V tolerance performance and can be powered directly from the Arduino power supply.
The sensor can be placed in the soil to measure moisture and temperature, which makes it ideal for use in gardens or greenhouses.
Humidity sensors are also particularly useful in the construction of remote weather stations.
Specifications:
Power consumption: 80 uW (12 bits, 3V, 1 measurement/sec)
Relative humidity working range: 0-100%RH
Relative humidity resolution: 0.03%
Relative humidity response time: 8 seconds (tau 63%)
Operating temperature range: -40~+125C
Temperature resolution: 0.01C
4-pin: +5V, GND, clock (SCL), data (SDA)
Two-way communication through a single pin of the I2C protocol
The board is 5V tolerant, allowing the sensor to run from a 5V supply on the Arduino I/O pins
Size: 1.51.50.1cm
Application:
Used to measure humidity in homes, basements and HVAC systems.
People whose body is sensitive to humidity.
Home ventilation, heating and air conditioning systems.
Weather station forecast or check weather temperature.
Check humidity and temperature in the garden or greenhouse.
Resource:
SHT21 sensor data manual.
LibHumidity Arduino library.
Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-3mm measuring deviation due to manual measurement.
Packing list:
GY-213V-SHT21 Module*1
