Introduction
Gravity: Capacitive Soil Moisture Sensor is ideal for environmental science courses and indoor gardening applications. Operating within a voltage range of 3.3 to 5.5V, this sensor provides an analog output of 1.2 to 2.5V, making it compatible with low-voltage MCUs, including both 3.3V and 5V logic systems, allowing for easy integration with popular platforms such as Arduino and Raspberry Pi. It features a waterproof detection area, effectively measuring soil moisture levels while resisting corrosion for reliable performance in outdoor and controlled environments. The capacitive design offers 2-3 times the lifespan of resistive sensors, ensuring long-term durability and dependable monitoring.
This detector is compatible with our 3-pin "Gravity" interface, which means it can be directly connected to the Gravity I/O Expansion Shield.
For more detailed insights on selecting the most suitable sensor, refer to the guide on [How to Select the Best Soil Moisture Sensors for Agriculture and Research Lab].
The following image shows an example project - a device that notifies you when a plant needs to be watered.
Analog Soil Moisture Sensor Projects:Analog Soil Moisture Sensor Project 1: IOT Plant Moisture NotifierGet a text or call if your plant is getting too dry, along with a nice LCD display giving information regarding your plant's health.
Hardware Components:
- Particle Photon
- Soil Moisture Sensor For Arduino
- I2C 16x2 Arduino LCD Display Module
- RGB Diffused Common Cathode
- Micro USB Connector
- Uxcell Perf Board 4x6cm
Particle Photon Project 2: Annoying Soil Moisture Sensor with Photon and IFTTT Project
Never forget to water your plants again with this super annoying project. It combines visual, auditory, and textual cues that will prevent you from doing anything else until you provide your plant with much-needed hydration. A piezo buzzer constantly blares a shrill note, while a super-bright LED annoys your peripheral vision. In addition, this project will send constant texts to your phone reminding you that your plant needs to be watered. Sounds like fun, right?
Hardware Components:
- Digital Buzzer For Arduino
- Bright LED Module
- Analog Capacitive Soil Moisture Sensor
- Particle Photon
- Micro USB Cable
- 400 Tie Point Interlocking Solderless Breadboard
- Arduino Jumper Cables (M/M) (65 Pack)
Project 3: OBLOQ-IoT Module +Micro:bit IoT Flower Watering
Hardware Components:
- Gravity: UART OBLOQ – IOT Module (Microsoft Azure)
- Micro:Mate - A Mini Expansion Board for micro:bit (Gravity Compatible)
- Micro:bit - an Educational & Creative Tool for Kids
- 9g Metal Gear Micro Servo (1.8Kg)
- One bottle and part of tube
- Gravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant
Features
- Supports Gravity 3-Pin Interface
- Analog Output
Applications
- Gardening & Farming
- Moisture Detection
- Intelligent Agriculture
Specification
- Operating Voltage: 3.3 ~ 5.5 VDC
- Output Voltage: 1.2 ~ 2.5V
- Interface: PH2.0-3P
- Dimension: 98mm * 23mm (3.86in x 0.905in)
- Weight: 15g
Shipping List
- Capacitive Soil Moisture Sensor x1
- Analog Sensor Cable x1