ESP Moisture Sensor for Plants

An ESP-Powered moisture sensor for plants.

Also checkout my other project ESP gardener for automatic watering.

Installation

• Install latest Arduino IDE

• Install ESP library for Arduino

• Select the correct board in IDE

• Copy config.h.example to config.h and modify the neccessary values

• Upload and start!

Overview

Notes:

• I am currently using a moisture sensor with resistive sensitivity, because the capacitive ones need >3.3V to operate.

• The power for the soil moisture sensor is delivered through a GPIO of the ESP32 to save power when not measuring.

• With the currently used battery in a bad WiFi environment and hourly moisture updates I got through 7 months without recharging the battery.