The shield also has numerous optional ports on which other sensors can

be connected. Those optional devices will be discussed briefly in this

tutorial, but examples showing how to use those external peripherals will be

included in another tutorial, linked at the end of this one.

To follow along with this tutorial, you will need the following.

SparkFun Photon Weather Shield

DEV-13674

The SparkFun Photon Weather Shield is an easy-to-use add-on boar…

Particle Photon (Headers)

WRL-13774

Particle's IoT (Internet of Things) hardware development board, the P…

USB microB Cable - 6 Foot

CAB-10215

USB 2.0 type A to micro USB 5-pin. This is a new, smaller connector f…

Suggested Reading

The following are suggestions for other resources to read before getting

started with your Photon Weather Shield.

• If you have never worked with the Photon or the Core before, we

highly recommend visiting the getting started documentation

available on the Particle site.

• We have also written a Photon Development Guide that goes over

three different methods for developing code for the Photon.

Check out the Hookup Guides for each of the sensors located on the shield

for more information specific to that sensor.

Si7021 Humidity and Temperature Sensor

Hookup Guide

MAY 5 , 201 6

The Si7021 humidity and temperature sensor is an easy to use, digital, low-

cost sensor to aid you in all your environment sensing needs.

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