SKU:SOIL-MOISTURE-LM393
Soil Moisture Sensor Module LM393 — Analog & Digital Output
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Rs.120.00
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Rs.120.00
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Soil Moisture Sensor Module LM393 — Analog & Digital Output
The LM393 Soil Moisture Sensor is an essential component for any smart agriculture or automated irrigation project. Insert the probe into soil and instantly read moisture levels via analog voltage or a simple digital threshold output. Whether you're building an automatic plant watering system or a smart garden controller with Arduino or ESP32, this sensor delivers reliable, real-time soil data.
Technical Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 3.3V – 5V DC |
| Output Type | Analog (AO) + Digital (DO) |
| Comparator IC | LM393 |
| Adjustable Threshold | Yes (via onboard potentiometer) |
| Digital Output | Active Low when soil is dry |
| Indicator LEDs | Power LED + Digital output LED |
| Probe Material | Nickel-plated copper |
| Operating Temperature | 10°C – 30°C |
Pinout
| Pin | Name | Description |
|---|---|---|
| VCC | Power | 3.3V or 5V Supply |
| GND | Ground | Ground |
| DO | Digital Output | HIGH = wet, LOW = dry (threshold adjustable) |
| AO | Analog Output | Voltage proportional to moisture level |
Key Features
- Dual output: analog for precise readings, digital for simple threshold detection
- Adjustable sensitivity via onboard potentiometer
- Power and status indicator LEDs for easy debugging
- Compatible with Arduino, ESP32, STM32, PIC, NodeMCU
- Nickel-plated probes for improved corrosion resistance
Applications
- Automatic plant watering and irrigation systems
- Smart garden and greenhouse monitoring
- Agricultural IoT projects
- Soil health monitoring stations
- Home automation with ESP32 or Arduino