Songhe

Songhe Capacitive Soil Moisture Sensor Module – Corrosion-Resistant, 3.3–5.5V, 5-Pack for Arduino DIY

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$19.43

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Why customers choose PatioZora Garden

Overview

Songhe's capacitive soil moisture sensor module is built for Arduino DIY projects and garden monitoring. Rather than a traditional resistive probe, it uses capacitive sensing to gauge soil moisture, offering a gentler interaction with the soil and reduced wear over time. The corrosion-resistant construction helps it stay reliable in diverse soil environments, from potted herbs to outdoor flower beds.

This module includes an on-board voltage regulator, letting you power it from 3.3 to 5.5 V with ease. The 0-3.0 V analog output aligns with many ADC inputs, and the 2.54 mm pitch makes a straightforward fit with common breadboards and microcontroller shields. With Gravity interface compatibility, it can connect directly to Gravity I/O expansion shields for quick prototyping.

Capacitive sensing advantages

Capacitive sensing detects moisture by measuring dielectric changes in soil, which can be more stable across different soils and moisture levels. This approach tends to minimize corrosion at the sensing surface and provides smoother data for DIY irrigation projects.

Key specifications

  • Chip is TL555
  • Operating Voltage: 3.3-5.5 VDC
  • Output Voltage: 0-3.0 VDC
  • Pitch: 2.54 mm

Real-world use cases

Insert the sensor into soil and connect to an MCU to read moisture data in real time. Use in a home garden, balcony planter, or greenhouse to inform watering decisions, automate schedules, or log soil conditions over time.

What you get

  • 5-pack of corrosion-resistant soil moisture sensors
  • On-board voltage regulator for flexible power (3.3-5.5 V)
  • 3-pin Gravity interface for direct compatibility with Gravity shields
  • Analog 0-3.0 V output ready for ADC input

Compatibility and integration notes: The module is designed to work with Arduino and similar platforms. The combination of a robust, long-lasting body and an easy power/communication profile makes it a practical addition to DIY irrigation projects, garden monitoring, or educational kits focused on sensor data.

FAQ

Q: Is this sensor suitable for outdoor use?

A: Yes, its corrosion-resistant body helps withstand garden soil exposure.

Q: What voltage does it operate at and which microcontrollers can I use?

A: It operates from 3.3 to 5.5V and works with Arduino and other Gravity-enabled boards.