Kapacitív talajnedvesség érzékelő, V2.0

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Kapacitív talajnedvesség érzékelő, V2.0
SOILCAP-V20 nedvesség szenzor

Cikkszám: #9896

(Bruttó) Ár: 1,590 Ft

Külső Raktáron

Szállítása 1490Ft-tól, várhatóan 3-5 munkanap...

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Talajnedvesség érzékelő modul

Az alábbi talajnedvesség érzékelő modul, kapacitív érzékelést használ a talajnedvesség pontos kimutatására. Emiatt a megoldás miatt a modul élettartama igencsak hosszú, a korrodáció csökkenése miatt!

Tápfeszültség: 3.3...5V DC

Logikai szint: 3.3, 5V
Kimenet: Analóg

Finding the Threshold Values

It is not possible to determine the actual percentage of moisture in the soil directly from the measurements taken. However, it is relatively easy to define basic ranges for what is considered “too dry,” “too wet,” and “just right.”

Simply run the sketch below and record your sensor output under three basic conditions:

When the soil is dry enough that the plant needs watering.
When the soil has been watered to its ideal moisture level for the plant.
When the soil has been heavily watered and is too wet, which is not ideal for the plant.

// Define analog input
#define sensorPin A0

void setup() {
  // Setup Serial Monitor
  Serial.begin(9600);
}

void loop() {
  // Read the Analog Input
  int value = analogRead(sensorPin);
  
  // Print the value to the serial monitor
  Serial.print("Analog output: ");
  Serial.println(value);
  
  // Wait for 1 second before the next reading
  delay(1000);
}

Upon running the sketch, you should expect readings similar to the ones listed below:

In open air: approximately 590
Dry soil that needs watering: approximately 380
Ideal soil moisture: between 277 and 380
Soil that has just been watered: approximately 277
In cup of water: approximately 273

This test may require some trial and error. Once you have the readings, you can use them as a threshold to trigger an action.

Arduino Example Code

The sketch below estimates the level of soil moisture using the following threshold values:

< 277 is too wet
277 – 380 is the target range
> 380 is too dry

/* Change these values based on your observations */
#define wetSoil 277   // Define max value we consider soil 'wet'
#define drySoil 380   // Define min value we consider soil 'dry'

// Define analog input
#define sensorPin A0

void setup() {  
  Serial.begin(9600);
}

void loop() {
  // Read the Analog Input and print it
  int moisture = analogRead(sensorPin);
  Serial.print("Analog output: ");
  Serial.println(moisture);
  
  // Determine status of our soil
  if (moisture < wetSoil) {
    Serial.println("Status: Soil is too wet");
  } else if (moisture >= wetSoil && moisture < drySoil) {
    Serial.println("Status: Soil moisture is perfect");
  } else {
    Serial.println("Status: Soil is too dry - time to water!");
  }
  Serial.println();
  
  // Take a reading every second
  delay(1000);
}