Bonnie Eisenman bio photo

Bonnie Eisenman

Software engineer, author, knitter, Esperantist. Member of NYC Resistor and author of Learning React Native.

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The “Internet of Dirt” is a quick little Arduino project that monitors the relative humidity of your soil and texts you when your plant needs watering. It combines a corrosion-resistant capacitive soil sensor, a WiFi-enabled Adafruit Feather HUZZAH ESP8266 board, Adafruit IO, and IFTTT.

A Coca-Cola can has been cut in half. Inside is a plant, and a soil sensor, with a jumble of wires connected to a breadboard.

Maya Kutz and I co-designed this project for a class we ran at NYC Resistor. You can view the tutorial on Instructables.

A Fritzing circuit diagram demonstrating how to connect the soil sensor to the Adafruit Feather HUZZAH.

A screenshot from IFTTT. It reads, If data on feed is less than or equal to 5, then send a notification.