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SparkFun Humidity and Temperature Sensor Breakout - Si7021

3 years ago 455
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  • BOM
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Description

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Description: 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.

Note: Full drops of water can damage the sensor. We recommend wrapping the board in Teflon/irrigation tape for extreme conditions where water droplets may find their way onto the sensor.

Dimensions: 0.6" x 0.6"

For more detail and Documents, Please visit: http://www.sparkfun.com/products/13763

Documents

SparkFun_Si7021_Breakout

BOM

ID Name Designator Footprint Quantity
1 SOLDERJUMPER_2WAY SJ1 SJ_3_PASTE123 1
2 M04 JP1 1X04 1
3 SI7021 U1 SI7021 1
4 0.1uF C2 0603-CAP 1
5 4.7k R1,R2 3-0603 2

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