Dealing with water or moisture, waterproof is essentially important. The components of the Plantmate Ⓡ Capacitive Soil Moisture Sensor are over-molding, it is waterproof;
Plantmate Ⓡ Capacitive Soil Moisture Sensor has the sensor probes on both sides of the PCB, it is more sensitive and accurate;
Plantmate Ⓡ Capacitive Soil Moisture Sensor has a longer cable to contact with your Arduino board, cable itself is about 85cm with a Micro USB male end. it comes with a Micro USB female adapter to make it even easier to use. Surely that you can cut off the Micro USB male end to contact your Arduino pins directly.
Plantmate Ⓡ Capacitive Soil Moisture Sensor operates with 3.3V and it is compatible with low-voltage MCUs. To make it compatible with a Raspberry Pi, an ADC converter is required.
DEMO project link: PlantmateⓇ Capacitive Soil Moisture Sensor 3.3V
| Interface | Micro USB |
| Operating Voltage | 3.3 V DC |
| Output Voltage | 3.0 V DC |
| Cable length | 85 cm |
| Compatible | Arduino |
| Weight | 32g |
| UPC/EAN | 766133580689 |
Wire Assignments:
| Wire | Description |
| Red | 3.3V DC-input (“VCC” on Micro USB) |
| Gray & White | 0-3 V Analog signal output (” D+ & D-” on Micro USB) |
| Black | GND (“GND” on Micro USB) |
Package Content:
- 1* Plantmate Ⓡ Capacitive Soil Moisture Sensor;
- 1* Miro USB adapter;
- 1* 4 pin header.













Michel –
Building 2 raised bed garden with Plantmate moisture sensors. Among all sensors tested, Plantmate, you guys got it.
One thing, do not apply 5v on sensors, as I blew one. Other than that, great product.