Smart Plant Care! Build a Qwiic Soil Moisture Sensor System

Have you ever wanted your plants to tell you how they're feeling? Check out this Qwiic Circuit Creation!

A plant in a window with a soil moisture sensor and OLED Hooked up to it.

Have you ever wanted your plants to tell you how they're feeling? While we might be a ways away from understanding or communicating with plant consciousness, we can tell if they're thirsty or not, and with the SparkFun Soil Moisture Sensor, you can do just that! This tutorial will show you how to take soil moisture readings and then display those readings on an OLED as a happy, meh, or sad face, depending on how wet or dry the soil is.

Happy face, sad face, and a meh face on 3 different OLEDs

The required materials list for this project is very simple, and you may find that you actually have many of the parts lying around!

Required materials for the soil moisture sensor project.

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