Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | Youxin Electronics |
| Product Type | Soil Moisture Sensor Module |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switch Output (0 and 1) |
| Interface | 3-Pin Connector (VCC, GND, DO) |
| Adjustable Sensitivity | Yes, via Potentiometer |
| PCB Size | 32mm x 14mm |
| Application | Smart Car, Robot, Garden Automation |
| Material | FR-4 PCB with Nickel Plated Probes |
| Package Includes | 1x Soil Moisture Detection Module |
Anonymous
Mar 26, 2026
Rating: 5/5
Great addition to sensor kit
Added this to my collection of sensors for educational workshops. Students find it easy to understand the concept of conductivity using this module. Very satisfied.
Anonymous
Mar 25, 2026
Rating: 4/5
Does the job
Simple and effective. The probes are a bit short for deep soil planting, but for surface detection on a robot chassis, they are perfect. Would recommend for beginners.
Anonymous
Mar 24, 2026
Rating: 5/5
Perfect for my Arduino robot car
This sensor works exactly as described. I integrated it into my smart car project to detect wet surfaces, and the digital output is very stable. The sensitivity adjustment pot makes calibration easy.
Anonymous
Mar 19, 2026
Rating: 5/5
Easy to connect and use
I am new to electronics, and this module was very straightforward to connect to my microcontroller. The LED indicator on the board helps visualize the status immediately.
Anonymous
Mar 07, 2026
Rating: 4/5
Good value for basic projects
Works well for simple moisture detection tasks. It's not a precision laboratory instrument, but for the price and its use in hobby robotics, it is excellent. Shipping was fast.
Anonymous
Mar 05, 2026
Rating: 5/5
Reliable detection
Bought three of these for a line-following robot that also needs to avoid puddles. All three units performed consistently. The build quality feels solid for the cost.
Q: Can this sensor measure the exact percentage of moisture in the soil?
A: No, this module provides a digital switch output (wet/dry) based on a threshold you set with the potentiometer. It does not provide an analog percentage value.
Q: Is this compatible with Raspberry Pi?
A: Yes, it is compatible. Since it operates at 3.3V-5V and gives a digital signal, you can connect the DO pin to a GPIO pin on your Raspberry Pi.
Q: Can I use this outdoors in the rain?
A: The PCB is not waterproof. While the probes are designed for soil contact, the electronic components should be protected from direct rain or submersion.
Q: How long are the probe pins?
A: The exposed probe length is approximately 20mm, which is suitable for surface-level detection or shallow insertion in small pots or robot applications.
Q: Does the package include connecting wires?
A: The package typically includes the module only. You will need to solder your own header pins or wires to connect it to your controller.
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