STEMMA - Soil Moisture Sensor - Adafuit 4026

Index: ADA-14431 EAN: 5904422307301

The soil moisture sensor and temperature sensor from Adafruit. Its design allows you for the capacitive measurement using a single probe. It has not the bare metal, so it is not oxidized in contact with the soil. The I2C interface was built-in here so it works when connected to almost any microcontroller. It is powered with the voltage from 3 V to 5 V.

STEMMA - Soil Moisture Sensor - Adafuit 4026
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Manufacturer: Adafruit
Compatibility: Arduino Raspberry Pi

Description of the product: Adafruit Stemma - humidity sensor

The sensor used to measure the soil moisture and its temperature.Soldered and ready to connect, for example, to ArduinoorCircuitPython with the 4-pin wire through the I2C interface. The design of these sensors is based on capacitive measurement, it has not the bare metal so the probe is not oxidized when in contact with the soil anddoes not affect the current on plants.

Adafruit Soil Sensor


The sensor has a built-in measuring system of the capacitive touch measurement built into theATSAMD10 system which gives readings in the range of from about 200 (very dry) to 2000 (very wet). In addition, it shows the temperature of environment from the internal temperature sensor on the microcontroller. It does not have very high accuracy, the measurement can vary up to +/- 2°C .




VIN The module's supply voltage in the range from 3 V to 5 V
GND The ground of the system
SCL Clock line of the I2C bus pulled-up by the resistor of 10 to VIN
SDA The data line of the I2C bus pulled-up by the resistor of 10 to VIN

Specification of the humidity sensor Adafruit Stemma

  • It does not require soldering
  • Interface: I2C
  • JST 4-pin PH connector compatible with the Grove connector
  • Supply voltage: 3 V to 5 V
  • Dimensions: 76.2 mm x 14.0 mm x 7.0 mm
  • Weight: 4.0 g


The product is compatible withArduinoandRaspberry Pi

The manufacturer providesthe Arduino libraryanduser's guidefor the Raspberry Pi.


Sensor - Temperature accuracy +/- 2 °C

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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