This product measures soil mositure levels by capacitive sensing, rather than resistive sensing like other types of moisture sensor. It is made of a corrosion resistant materal giving it a long service life. Insert it into soil and impress your friends with the real-time soil moisture data!

The product includes an on-board voltage regulator which gives it an operating voltage range of 3.3 ~ 5.5V. It is compatible with low-voltage MCUs (both 3.3V and 5V logic). To make it compatible with a Raspberry Pi, an ADC converter is required.

This sensor is compatible with our 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.

 

Features:

• Supports Gravity 3-Pin Interface
• Analog Output

Applications:

• Gardening & Farming
• Moisture Detection
• Intelligent Agriculture

Specification:

• Operating Voltage: 3.3 ~ 5.5 VDC
• Output Voltage: 0 ~ 3.0VDC
• Interface: PH2.0-3P
• Dimension: 98mm * 23mm (3.86in x 0.905in)
• Weight: 15g

Documents:

Product Includes:

• Capacitive Soil Moisture Sensor x1
• Analog Sensor Cable x1