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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
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
Wemos® Higrow ESP32 WiFi bluetooth Battery DHT11 Soil Temperature And Humidity Sensor Module (Wemos Higrow)
Description:
 
More details available at:https://github.com/LilyGO/higrowopen


A LG 3000mAH 18650 battery could make ESP32 run 17 hours or more.
This capacitive soil moisture sensor differs from most of the resistive sensors on the market, using capacitive sensing principle to detect soil moisture. It avoids the problem that the resistance sensor is easy to corrode and greatly prolongs its working life.
Size: 193.5mm x 29.4mm
 
Package includes:
 
1 x Wemos® Higrow ESP32 WiFi bluetooth Battery DHT11 Soil Temperature And Humidity Sensor Module
R389.90  Inc VAT
HHCC Soil Water Fertility Smart Tester Sensor (HHCC flora monitor)
This is China version, you can use it all over the world,Can switch multiple languages
The YouPin Flower Monitor could not be compatible with some Lenovo smart phone;

Product Features:

Easy and convenient to use and operate
Provide a healthy growing environment for all plants
Easily check on the condition of your plants
Can recognize different kinds of plants via smart phone
Open Bluetooth and connect smart home APP to manage your plants

Product Description:

Download the "flower care" app from the app store and connect the device. Plug & Play basically.
Brand : YouPin
Item : YouPin Flora Monitor
Wireless connections: Bluetooth 4.1 BLE
Operating voltage: 3V
Battery: CR2032 button battery (included)

Function:

Waterproof design around battery compartment;
IP5 Waterproof grade: anti spray type waterproof, any direction directly by the water jet, no harmful effects;
Nutrient testing, soil moisture detection, temperature detection, light detection;
Precise detection of light and temperature water and fertilizer;
Cloud Plant Database;
Phone Bluetooth connection.

What's in the box?

1 x HHCC flora sensor

Brian shows how he connected it to RPi4
https://brianp.de/posts/2020/plant-monitoring-xiaomi-miflora-rasperrypi-grafana/
R419.90  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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