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Soil Hygrometer Humidity Detection Moisture Sensor (moisture probe hygrometer)
Description:

This is a summary of the soil moisture sensor that can be used to detect moisture, when the soil is dry, the module outputs a high level. Use this sensor to build an automatic watering system.

Specifications:

Operating voltage: 3.3V~5V.
Adjustable sensitivity (blue digital potentiometer adjustment)
Dual output mode,analog output more accurate.
A fixed bolt hole for easy installation.
Power indicator (red) and digital switching output indicator (green).
LM393 comparator chip, stable.
PCB Dimension: 3cm x 1.5cm.
Soil Probe Dimension: 6cm x 2cm.
Cable Length: 21cm.

VCC: 3.3V-5V.
GND: GND.
DO: digital output interface (0 and 1).
AO: analog output interface.

Setup with Raspberry Pi

Package Includes:

1 x Soil moisture detector module
1 x Probe
5 x Jumper Cables

R29.90  Inc VAT
Rain Detector Weather Sensor Module (Rain Detector)
Description:

The item is for use as a rain sensor, monitoring can be used for a variety of weather conditions, and converted into the number of the reference signal and the AO output.
The sensor uses FR-04 high-quality double-sided material, King Size 5.0 * 4.0CM, and with a surface of nickel plating treatment against oxidation for superior performance and longevity;
The output is in the form of digital switching outputs (0 and 1) and analog AO voltage output;Sensitivity can be adjusted via the potentiometerLED lights up when there is no rain, output is high.

Specifications:

Small board PCB size: 32mm x 14mm
Operating voltage: 3.3V-5V

How to use:

Connected to 5V power supply, the power indicator will light up.
With no water droplets, DO output is high, LED turns off.
Dropping on a drop of water, DO output is low, the indicator light switch on,Brush off the the above water droplets, has returned to output high state. . . .

Connection mode:

1, VCC: positive power supply (3-5V)
2, GND: negative one.
3, DO: TTL switching signal output
4, AO: Analog signal output

Package includes:

1 x Rain sensing board
1 x Control board
5 x 20cm Dupont Line

Resources:

Magpi example
This is a nice board to add to your weather station or irrigation automation project
R33.90  Inc VAT
Soil Moisture Sensor 12V DC Relay Control Module Automatic watering switch (automatic water relay sensor)
Description:

When the soil moisture is lower than preferred setting, the relay will automatically pull in, start the sprinkler, water pump etc. until the moister reaches the desired humidity level and automatically stop.
Product use: Through the potentiometer, adjust to the desired soil moisture level

Specifications:

Electrical parameters: Supply voltage: 12VDC
Input current: more than 100mA Relay Load Max: 10A 250V AC or 10A 30V DC

Module instruction:

1 sensors applied to the detection of soil moisture; Module
2. Blue potentiometer is used to adjust soil moisture level, clockwise adjustment and control the humidity will be bigger, counterclockwise smaller; 3. Due to module delay function, adjust the humidity value, wait about 5-8 seconds, see if the the relay state changed, the green LED lamp will also have corresponding change, until adjusted to meet the requirements.


Package Includes:

1 x Soil moisture control module
1 x Soil sensor
2 x 20cm long DuPont lines
R74.90  Inc VAT
Grove Maker Soil Moisture Sensor (Capacitive) (maker soil moisture)

Description:


Maker Soil Moisture Sensor measures soil moisture by capacitive sensing, where the presence of water in the soil will increase the probe capacitance. The output of the sensor is analog output; higher moisture levels will produce lower output voltage. Being part of the Maker Seriesthe sensor is equipped with many features to further simplify digital making for beginners and experts alike.



The Maker Soil Moisture Sensor is easy to use. It only needs a power supply, if the LED indicators alone are enough for your application. Make sure that the voltage level of the power supply is within the sensor specifications. Note that the LED indicators only indicate approximate moisture levels and might fluctuate depending on the power supply, since the sensor does not have a voltage regulator on board.




Full Tutorial: Battery Powered Maker Soil Moisture Sensor


Maker Soil Moisture Sensor can also be used with microcontrollers to build more complex projects like smart gardens and self-watering systems. The analog output voltage of the sensor is used for these applications. Furthermore, the sensor also has a disable pin for power saving applications. Sending HIGH signal to the disable pin will disable the sensor.





Full Tutorial: Self Watering Pot Featuring Maker Soil Moisture Sensor


It is important to note that this sensor can only qualitatively test the humidity of the soil and cannot measure quantitatively. Which means when the humidity of the soil rises, the value of the output decreases; conversely, when the humidity decreases, the output value becomes higher.

Features:

  • Operating Voltage: 2.5V - 7.0V.

  • Output: Analog Voltage (Higher moisture = lower voltage)

  • Grove port.

  • LED indicators for dry/moist/wet soil moisture levels.

  • Soil Limit (Maximum depth of the probe)

  • Double-sided probe (More sensitive to moisture changes)

  • Capacitive sensing probe (Corrosion resistant)

  • Disable pin (Power-saving application)

 

Example Applications:

  • Soil moisture detection

  • Automatic Plant Watering System

  • Smart/IoT Gardens



Resources:


What's in the box?

1 x Sensor
1 x 50 cm Grove cable
R99.90  Inc VAT
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