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SparkFun Humidity and Temperature Sensor Breakout (Si7021)

Product Code: 0447
Manufacturer Part Number: SEN-13763
Manufacturer: SparkFun
Availability: In Stock

$15.39CAD

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The Si7021 is a low-cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for build a weather stations or humidor control system. All you need are two lines for I²C communication, and you’ll have relative humidity readings and very accurate temperature readings as a bonus!

There are only four pins that need to be hooked up in order to start using this sensor in a project. One for VCC, one for GND, and two data lines for I²C communication. This breakout board has built-in 4.7KΩ pullup resistors for I²C communications. If you’re hooking up multiple I²C devices on the same bus, you may want to disable these resistors.

Features:

0.6" x 0.6"

Documents:

Schematic
Eagle Files
Datasheet (Si7021-A20)
GitHub (Design Files & Example Code)
GitHub (Library)

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X2 Robotics is a supplier of electronic parts and components in Canada. We carry a large selection of open source electronics such as Adafruit, Arduino, Pololu, Raspberry Pi, SparkFun and more. We ship orders to anywhere in Canada or the United States.

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