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Kapacitív talajnedvesség szenzor
Capacitive Analog Soil Moisture Sensor 3.3~5.5V

Cikkszám: #5713

100% magyar cég! 100% magyar raktár!

(Bruttó) Ár: 990 Ft

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Szállítása már 1490Ft-tól, akár 1 munkanap...

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Rendkívül költségkímélő talajnedvesség szenzor.
Kapacitív nedvességérzékelés, analóg kimenet.

Alkalmas kertekhez, virágokhoz, növényekhez, több bemenetű analóg eszközhöz, vagy analóg multiplexerrel akár több 100 db-is könnyen felfűzhető. Hobby, és nagy mezőgazdasági környezetekben is széles körben használják. Intelligens agrikultúra.

Applications
Garden plants
Moisture detection
Intelligent agriculture

Features
Supports Gravity 3-Pin interface
Analog output

Specification
Output Voltage: 0 ~ 3.0VDC
Operating Voltage: 3.3 ~ 5.5 VDC
Interface: PH2.0-3P
Dimension: 98mm * 23mm (3.86in x 0.905in)

Sample Code



// Simple code for Measuring Voltage from
// Capacitive soil moisture sensor
//
int soil_pin = A0; // AOUT pin on sensor

void setup() {
  Serial.begin(9600); // serial port setup
  analogReference(EXTERNAL); // set the analog reference to 3.3V
}

void loop() {
  Serial.print("Soil Moisture Sensor Voltage: ");
  Serial.print((float(analogRead(soil_pin))/1023.0)*3.3); // read sensor
  Serial.println(" V");
  delay(100); // slight delay between readings
}

Library

No external library is required to use this sensor.

Example Code


const int AirValue = 600;
const int WaterValue = 350;

int soilMoistureValue = 0;
int soilMoisturePercent = 0;

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

void loop() {
  soilMoistureValue = analogRead(A0);
  Serial.println(soilMoistureValue);

  soilMoisturePercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);

  if (soilMoisturePercent >= 100) {
    Serial.println("100 percent");
  } else if (soilMoisturePercent <= 0) {
    Serial.println("0 percent");
  } else {
    Serial.print(soilMoisturePercent);
    Serial.println(" percent");
  }

  delay(250);
}

Calibration Procedure

Measure the weight of an empty container and fill it with dry soil up to 200 ml. Record the dry soil weight. Add 10 ml of water mix thoroughly and refill to 200 ml. Record the new weight. Repeat the process until the soil becomes saturated. Spread the soil thinly to dry and record the final dry mass. These measurements are used to calibrate the sensor accurately.

Technical Details

Operating voltage 3.3 V to 5.5 V DC
Operating current 5 mA
Analog output
Three pin interface
Dimensions 98 x 23 x 4 mm
Weight 15 grams

Comparison

Capacitive soil moisture sensors provide better accuracy and longer lifespan compared to resistive sensors by avoiding probe corrosion. They measure dielectric changes in the soil rather than electrical resistance which can be affected by fertilizer and soil composition. Compared to combined soil moisture modules capacitive sensors provide only analog output but offer improved reliability and durability.