Soil Moisture Detector
Sensors · Board: ESP8266 · Day 28 of 100
An ESP8266 reads a soil sensor and reports dry or wet conditions. The sensing core of every smart-garden project.
How it works
Two probes in the soil form a variable resistor whose value changes with water content. The ESP8266 reads it as an analog voltage and classifies the result as dry or wet against a threshold you calibrate for your own soil. It is the sensing core every automated garden builds on.
What you'll learn
- Resistive soil sensing
- Wet/dry calibration
- Probe corrosion awareness
- Threshold classification
Full project: code, wiring diagram & Wokwi simulation
The complete build guide lives in the original repo. Ours is a summary — the real thing is one click away.
Open full project on GitHub ↗Summary by SkillShop. Project by Kritish Mohapatra — code and diagrams belong to the original repo.
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