Description

🌱 Key Features

✔ No Coding Needed – Works with analog voltmeters or relay modules
✔ Analog Output – 0–3V (dry to wet) for direct meter reading
✔ Digital Threshold – Adjustable HIGH/LOW trigger (via potentiometer)
✔ Corrosion-Resistant Probes – Long-lasting in soil
✔ Low Power – Runs on 3.3V–5V DC (battery-friendly)

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🔧 How to Use (Without Arduino/Microcontrollers)

Option 1: Analog Voltmeter Display

1. Connect:

   • VCC → 3V/5V Battery (+)

   • GND → Battery (−)

   • AO → Analog voltmeter (0–3V/5V range)

2. Read:

   • 0V = Bone dry | 1.5V = Moist | 3V = Saturated

Option 2: Trigger a Buzzer/Relay

1. Connect:

   • VCC → 5V Power

   • GND → Ground

   • DO → Relay module/buzzer

2. Adjust:

   • Turn the blue potentiometer to set the moisture threshold.

   • LED turns on when soil is too dry/wet (depends on wiring).

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📊 Technical Specs

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⚠️ Tips for Best Performance

• Insert probes 2–4cm deep near plant roots.

• Power off when not in use to prolong probe life.

• Clean probes monthly with a dry cloth.

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📦 Package Includes

• 1× Soil Moisture Sensor

• 2× Probe Electrodes