
The Story
This sensor measures soil moisture levels by capacitive sensing, rather than resistive sensing like traditional moisture sensors. It is made of a corrosion-resistant material giving it long service life. Insert it into the soil and keep an eye on your plants with real-time soil moisture data!
The sensor includes an on-board voltage regulator which gives it an operating voltage range of 3.3-5.5V making it compatible with low-voltage development boards (both 3.3V and 5V logic). To make it compatible with a Raspberry Pi, an ADC converter is required.
This sensor is compatible with the DFRobot 3-pin Gravity interface, which means it can be directly connected to the Gravity I/O Expansion Shield.
The following image shows an example project - a device that notifies you when a plant needs to be watered:

Connection Example - Arduino
Features
- Corrosion resistant
- Supports Gravity 3-Pin Interface
- Analog Output
Specifications
- Operating Voltage: 3.3 ~ 5.5 VDC
- Output Voltage: 1.2 ~ 2.5V
- Interface: PH2.0-3P
- Dimension: 98mm x 23mm
- Weight: 15g
Resources
- Product Wiki
Package Contents
- 1x Capacitive Soil Moisture Sensor
- 1x Analog Sensor Cable

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
This sensor measures soil moisture levels by capacitive sensing, rather than resistive sensing like traditional moisture sensors. It is made of a corrosion-resistant material giving it long service life. Insert it into the soil and keep an eye on your plants with real-time soil moisture data!
The sensor includes an on-board voltage regulator which gives it an operating voltage range of 3.3-5.5V making it compatible with low-voltage development boards (both 3.3V and 5V logic). To make it compatible with a Raspberry Pi, an ADC converter is required.
This sensor is compatible with the DFRobot 3-pin Gravity interface, which means it can be directly connected to the Gravity I/O Expansion Shield.
The following image shows an example project - a device that notifies you when a plant needs to be watered:

Connection Example - Arduino
Features
- Corrosion resistant
- Supports Gravity 3-Pin Interface
- Analog Output
Specifications
- Operating Voltage: 3.3 ~ 5.5 VDC
- Output Voltage: 1.2 ~ 2.5V
- Interface: PH2.0-3P
- Dimension: 98mm x 23mm
- Weight: 15g
Resources
- Product Wiki
Package Contents
- 1x Capacitive Soil Moisture Sensor
- 1x Analog Sensor Cable























