Measure Chemical Conditions with a Sensor Made for Embedded Projects

The Soil Moisture Sensor Analog Digital is a soil moisture sensor with analog and digital output designed for water quality work, lab projects, and environmental monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Operating voltage: 3.3V – 5V; Working voltage: 3.3V-5V; Output mode: Dual output mode (analog output).

Why you’ll love it

• Digital output, easy to adjust: Digital output, easy to adjust
• Key feature: DO port output will be high in case the module is unable to reach the set threshold.
• Controller output: Dual output mode (analog output)
• Power range: 3.3V – 5V
• Compact size: 3 x 1.5 cm
• Useful spec: Analog Output Interface

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What you can build

This sensor is a good fit for water test rigs, hydroponics monitors, lab logging, aquarium control, and environmental stations.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include calibration solutions, probe holders, and a data logger, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Wiring & usage notes

Many modules in this style expose both analog and digital pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.

What’s in the box

1 × Soil Moisture Sensor Analog Digital

Frequently Asked Questions