The Gravity: Analog Capacitive Corrosion-Resistant Soil Moisture Sensor is designed for accurate and long-lasting soil monitoring in gardening, agriculture, and research applications. Unlike resistive sensors, its capacitive design provides a 2–3 times longer lifespan by preventing corrosion, ensuring durability in both indoor and outdoor environments. Operating within a 3.3V–5.5V input range, the sensor outputs a stable 1.2–2.5V analog signal, making it fully compatible with Arduino, Raspberry Pi, and other low-voltage microcontrollers. Its waterproof detection area enhances reliability in humid or wet conditions, making it an excellent choice for smart irrigation, greenhouse monitoring, and IoT-based agriculture systems. With the Gravity 3-pin interface, it can be directly connected to a Gravity I/O expansion shield, simplifying integration for rapid prototyping. This sensor is the ideal solution for students, hobbyists, and professionals who require dependable soil moisture detection for plant health monitoring and automation projects. Featured By RoboticsBD.
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Gravity Analog Dissolved Oxygen Sensor Kit for Arduino-compatible projects Measures dissolved oxygen in water to assess water quality in aquaculture, environmental monitoring, and natural science Galvanic probe design with no polarization time required and low maintenance costs Signal converter board with 3.3-5.5V compatibility for Arduino, ESP32,...
This Gravity: Analog Spear Tip pH Sensor / Meter Kit can directly stab into semisolid material to measure the pH value. It can be used to measure the pH value of wet soil and various foods. The probe is equipped with a stainless-steel spear tip, allowing it to be directly stabbed into soft materials without damaging the sensor. One of its most valuable...
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Based on MAX30105 – heart rate, oximeter, smoke sensor Green, red, and infra-red LEDs Interface: I2C (address 0x57) Compatible with 3.3V and 5V logic levels.
Operating voltage: 5V DC. Detector distance: 1CM. Adjust the potentiometer, let the modules work normally. Small and easy to use module. It comes with a Buzzer for metal detection indication.The Mini Metal Detector Module arrives disassembled, requiring assembly using a soldering iron and soldering accessories. Moderate knowledge of soldering and...
Working voltage: 5.00V DC Working current: 40mA (MAX) Response time: <500ms Insulation resistance: 100MΩ (Min) Analogue output: 0~4.5V; Digital output: high/low-level signal (the corresponding threshold can be selected by adjusting the potentiometer) Operating temperature: -20℃~90℃
Wide voltage operation: 3.3~5.5V 0~2.3V analog signal output, compatible with 5V, 3.3V two control systems The excitation source is an AC signal, effectively preventing probe polarization Waterproof probe for long-term immersion in water
LDR module 4 PIN Operating voltage 3.3V-5V Signal output indicator light. LDR module 4 PIN Able to detect ambient brightness and light intensity Adjustable sensitivity (via blue digital potentiometer adjustment)
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Using high-quality dual-panel design, with power indicator and TTL signal output instructions. The switching signal having a DO (TTL) output and analog output AO. TTL output valid signal is low. The higher the voltage, the concentration of the analog output voltage is higher. A hydrogen gas detection with good sensitivity. Has a long life and reliable...
It has a relay status indicator led Power LED(Green), 8 relay status indicator LED(Red) Relay control interface by single-chip IO. Low-level suction close, high-level release. Easy to use, simple 3 line structure.Note: Relay might be different from the picture as per stock
Built-in Flash: 32Mbit Power supply: 5V WiFi protocol: IEEE 802.11 b/g/n Peripheral interface: UART/GPIO/ADC/DAC/SDIO/PWM/I2C/I2S Logic level: 3.3V A high-quality USB cable is essential for this board to ensure sufficient current supply; otherwise, your board may not be recognized by the Windows Device Manager. Please avoid using mobile phone cables and...
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Wide Input Range: Supports 6V–24V solar panels for flexible renewable setups Regulated 5V/3A Output: Provides stable power supply for embedded and IoT devices USB Type-C Input: Supports external adapter charging alongside solar input Battery Expansion Port: Compatible with optional battery holder for energy storage Built-in Protection: Offers...
Powered by ESP32 chip for faster, more stable smart control performance Supports eWeLink Remote for two-way and local device communication Magic Switch Mode allows control via app even when wall switch is off Handles up to 10A / 2400W load at 240V AC with CE, FCC, ETL certifications Built-in temperature sensor prevents overheating and ensures safe...
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Gravity: Analog capacitive soil moisture sensor with corrosion resistance
Wide operating voltage 3.3V–5.5V, compatible with Arduino & Raspberry Pi
Analog output 1.2–2.5V for easy integration with MCUs
Waterproof detection area for reliable indoor & outdoor use
Capacitive design ensures 2–3x longer lifespan than resistive sensors
Ideal for IoT projects, gardening, agriculture, and research labs
