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ESP32 CAM WiFi Module with OV3660 Camera Module 2MP
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Soil Moisture Sensor Module
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This is a Soil Moisture Sensor or Soil Humidity Sensor. With this module, you can tell when your plants need watering by how moist the soil is in your pot, garden, or yard.
Use it in a home automated watering system, hook it up to IoT, or just use it to find out when your plant needs a little care. Installing this sensor and its PCB will have you on your way to growing a green thumb!
This soil moisture sensor consists of two probes which are used to measure the volumetric content of water. The two probes allow the current to pass through the soil and then it gets the resistance value to measure the moisture value.
Also check the Automatic Plant Watering System Kit includes components such as a relay module, mini water pump, plastic battery storage case holder, jumper wires, vinyl tubing, and a soil moisture detector module.
To download the code Click Here
| Sensor Type | Soil Moisture Sensor |
| Operating Voltage (VDC | 3.3 ~ 5 |
| PCB Dimension | 3cm x 1.5cm |
| Soil Probe Dimension | 6cm x 3cm |
| Cable Length (CM) | 20 |
| Weight | 50 grams |
Soil Moisture sensor mainly uses capacitance to determine the soil's water content. This sensor works by inserting the module into the soil. The fork-shaped probe with two exposed conductors functions as a variable resistor, with resistance varying with soil moisture content.
It is very simple to use a Moisture sensor module with a Arduino. Connect the sensor module's Analog/Digital Output pin to the Microcontroller's Analog/Digital pin. Connect the VCC and GND pins to the Microcontroller's 5V and GND pins. Then, insert the probe into the soil.
A built-in potentiometer allows you to calibrate the digital output of the module (DO). You can set a threshold by turning the potentiometer's knob. The Status LED will light up and the module will output LOW when the moisture level exceeds the threshold value. When your plant is ready to be watered, insert the probe into the soil and turn the pot clockwise until the Status LED turns on, then counter-clockwise until the LED turns off to calibrate the sensor. That’s it your sensor is now calibrated and ready for use.
Soil moisture sensors aid in good irrigation management, which results in better crops, lower input costs, and increased profitability. Irrigators can use soil moisture sensors to figure out what's going on in a crop's root zone.
Soil moisture is a crucial factor in agriculture, landscaping, and gardening. The proper amount of soil moisture ensures the optimal growth and health of plants. Traditionally, farmers have relied on manual methods to measure soil moisture levels which can be time-consuming and inaccurate. This is where the benefits of using a soil moisture sensor become apparent for modern-day farmers. These sensors provide accurate real-time data on the water content in soils giving farmers precise information about irrigation needs, allowing them to make informed decisions that ultimately increase crop yield while conserving water usage. Additionally, these sensors save both time and resources by eliminating guesswork and reducing labor costs associated with traditional methods.
