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HTU21D - digital humidity and temperature sensor I2C

Index: SPF-02263

Humidity and temperature sensor powered by 3.3 V with I2C interface. Measuring range: temperature -40 to 125 °C, humidity 0-100 %RH.

HTU21D - digital humidity and temperature sensor I2C
€13.50
€10.98 tax excl.
Unavailable
Discontinued product
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Manufacturer: SparkFun

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The sale of the product has been completed. Checka newer version.

Description

Easy to use temperature and humidity sensor supplied from 3.0 V to 3.6 V. It communicates via the I2C interface. It is used, among other things, for weather stations and systems for controlling indoor conditions.

HTU21D - cyfrowy czujnik wilgotności i temperatury I2CHTU21D - cyfrowy czujnik wilgotności i temperatury I2C

For proper operation it is sufficient to connect the power supply and the I2C bus lines: SDA data and SCL clock. The board is equipped with 4.7 kΩ pull-up resistors, if other devices are connected to the I2C bus, these resistors can be switched off.

Arduino compatible product

The manufacturer has prepared auser guide andlibrary with asample program forArduino users.

The outputs are soldering fields, allowing to soldergoldpin connectors -2.54 mmraster. Thanks to them it is possible to connect the circuit withcontactboardormain module by wires. The set does not includegoldpin connectors,they can be purchased separately.

Parameters

  • Supply voltage: 3.0 to 3.6 V
  • Current consumption: up to 0.5 mA
  • Sleep mode current consumption: up to 0.14 µA
  • Module dimensions: 15 x 15 mm
  • Two 3 mm diameter mounting holes
  • Temperature
    • Measuring range: -40 to 125 °C
    • Resolution: 12 to 14 bits (max. 0.01 °C)
    • Accuracy: ± 0.3 °C
    • Response time:
      • for a resolution of 12 bits: 11 ms
      • for 14-bit resolution: 44 ms
  • Moisture:
    • Measuring range: 0 - 100 % RH
    • Resolution: 8 to 12 -bit (max ±0.04 % RH)
    • Accuracy: ±2 %RH*
    • Response time:
      • for 8-bit resolution: 2 ms
      • for 12-bit resolution: 14 ms

*RH - Relative humidity expressed as a percentage. This is the ratio of the actual humidity in the air to the maximum amount that the air can hold at a given temperature.

Package width 0.001 cm
Package height 0.001 cm
Package depth 0.001 cm
Package weight 0.001 kg

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