Soil Moisture

Adafruit Soil Moisture Sensor Notes for IoT Projects

March 13, 2024

Notes on using the Adafruit STEMMA soil moisture sensor after unreliable results from cheap capacitive sensors in an ESP32 garden project.

Soil Moisture Sensors for IoT Garden Projects

February 15, 2024

Notes on choosing soil moisture sensors for IoT garden projects, including resistive vs. capacitive sensors, common reliability problems, protection methods, calibration, and a practical recommendation for future builds.

Self-Watering Garden: An IoT Architecture Case Study

May 25, 2022

A case study for a proof-of-concept self-watering garden system that uses soil moisture telemetry, an edge gateway, MQTT, REST APIs, and a dashboard to coordinate irrigation decisions.