Overview Take the guesswork out of watering your plants!This Arduino Soil Moisture Sensor Module detects soil humidity levels in real time, allowing you to automate your plant watering system. Ideal for DIY enthusiasts and smart gardening projects, it works perfectly with Arduino, Raspberry Pi, and other microcontroller platforms. Key Benefits Build a Smart Watering System: Automatically control pumps or relays based on soil moisture levels — no more over or under-watering. Dual Output Design: Provides both Digital Output (DO) for threshold-based alerts and Analog Output (AO) for accurate sensor readings. Wide Compatibility: Works seamlessly with Arduino, microcontrollers, and 3.3V–5V development boards. Adjustable Sensitivity: On-board potentiometer lets you fine-tune the detection threshold for different soil types. Visual Indicators: Red Power LED and Green Output LED provide instant status feedback. Technical Features & Specifications Feature Description Detection Type Measures soil moisture level (High = Wet, Low = Dry) Outputs Digital (DO) & Analog (AO) Compatibility Arduino, Microcontrollers, Smart Car/Home Systems Chipset LM393 Comparator for stable performance Sensitivity Adjustable via blue potentiometer knob Indicators Power LED (Red), Output LED (Green) Operating Voltage 3.3V – 5V DC PCB Size Approx. 3.0 cm × 1.6 cm Pinout (4-Wire Interface) Pin Function VCC Power Supply (3.3V–5V) GND Ground DO Digital Output – Connect to MCU digital pin for ON/OFF control AO Analog Output – Connect to MCU ADC pin for variable moisture readings Perfect For Arduino and Raspberry Pi projects DIY automatic watering systems Smart gardening and irrigation setups Educational STEM and electronics experiments Why Choose This Module? This compact and reliable soil moisture sensor makes your DIY smart garden project effortless. Whether you’re building an automated irrigation system or experimenting with IoT plant care, this module ensures precision, consistency, and easy integration — all at an affordable price.
