BadgerHack: Sensor Add-On Kit

Contributors: Sarah Al-Mutlaq
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The BadgerStick that you received by visiting a SparkFun booth at one of the various events we've attended can be hacked to perform a wide variety of tasks. The BadgerStick is a fully capable microcontroller that can sense the environment around it.


This tutorial will guide you through turning your BadgerStick into an environment sensing station. We'll do so by adding a temperature sensor and a soil moisture sensor.

SparkFun BadgerStick and Sensor add-on kit with plant

Plant not included

NOTE: The BadgerStick and RedStick are two different products. The BadgerStick (aka BadgerHack) originated as an event-only platform to aid SparkFun in teaching soldering and programming at events like Maker local Faires and SXSW. The RedStick evolved from that concept and is the retail version of the BadgerStick, available for sale on All of the BadgerStick tutorials and expansion kits are compatible with both the BadgerStick and the RedStick, unless otherwise stated.

Required Materials

On top of your Badgerstick/Redstick and LED array display you will need a few more parts for this project:

Suggested Reading

Before starting this tutorial, we highly recommend you work through the main BadgerHack guide first.


September 23, 2015

This tutorial shows users how to solder their SparkFun interactive badges as well as put them to use in other projects.

Additionally, if you are new to soldering or electronics, we recommend you check out the following:

When you are ready to start hacking your badge, we definitely recommend reading: