Customers who bought this product also bought:
- 40 Male - female 150mm Premium dupont wires Kit
- 20 female - female 150mm Premium dupont wires Kit
- Moisture sensor - Grove
- LED - Grove module
- Temperature humidity BME280 pressure sensor
- SN754410 - Compatible L293D
- 5 x push button
- Connector Strip Arduino Pack
- Driver woven fabrics - money - 20cm square
Most low-cost soil sensors are resistive type, where there are two branches and the sensor measures the conductivity between them. These work well at first, but eventually oxidize because of the exposed metal. Even if they're golden! The resistivity measurement is increasing more and more, so you must constantly recalibrate your code. In addition, resistive measurements do not always work in soft soils.
This design is superior with capacitive measurement. Capacitive measurements use only one probe, have no exposed metal and do not introduce direct current into your installations. We use the capacitive touch measurement system integrated in the ATSAMD10 chip, which will give you a reading from about 200 (very dry) to 2000 (very wet). As a bonus, we also give you the ambient temperature of the internal temperature sensor of the microcontroller, it is not a high accuracy, perhaps good at + or - 2 degrees Celsius.
So that you can use the sensor with just about any microcontroller, we have an I2C interface. Connect a 4-pin JST-PH cable (we have some in stock) to your microcontroller or single-card computer to a 3-5V, ground, I2C SDA and I2C SCL power supply, then execute our Arduino or CircuitPython code to read the capacitive measurement and temperature. No welding is required!
Note: This is only the sensor, you will also need a 4-PH JST cable to connect it! We have some options such as one with male connector pins, female connector pins and a JST-JST cable. You can use Seeed Grove cables and cards to connect - the Grove cable looks a little different but will fit very well.
Consult the complete guide for schematics, wiring, code and more:
Adafruit STEMMA Soil Sensor - I2C Capacitive Moisture Sensor
Product Dimensions: 76.2mm x 14.0mm x 7.0mm / 3.0" x 0.6" x 0.3"
Product Weight: 4.0g / 0.1oz
A sensor of temperature and humidity Si7021 avce liaison I2C-based.12,00 € Add to cart
A compatible amplifier/converter of thermocouples type K, J, N, R, S, T, E, or B.21,00 € Add to cart
Uncapteur temperature and humitidite I2C at base of Sensiron SHT31-D.16,74 € Add to cart
Pressure barometric - altitude - I2C temperature sensor.11,94 € Add to cart
A very versatile temperature, humidity, pressure and gas sensor.27,00 € Add to cart
A low cost I2C digital temperature and humidity sensor.4,74 € Add to cart
A 150mm long STEMMA cable with 4-pin female JST-PH connectors0,90 € Add to cart