Funduino Soil Moisture Arduino Sensor เซ็นเซอร์วัดความชื้นในดิน สำหรับระบบรดน้ำต้นไม้อัตโนมัติ

• Color             : Red + Silver
• Material         : RF4
• Power Supply : 3.3V or 5V
• Working Current: Less than 20mA
• Output Voltage: 0~2.3V (2.3V when sensor completely soaked in the water)
• Supply Voltage: 5V
• Sensor Type    : Analog output
• Service Life     : 1 year approximately
• Weight            : 7.0g
• Type               : Sensor
• Use For           : Universal
• Sensor Function : Humidity
• Dimension(cm) : 6.5 x 2.0 x 0.8
• Net Weight(kg) : 0.004

int sensorPin = A0; // select the input pin for the Soil moisture sensor
int sensorValue = 0; // variable to store the value coming from the sensor

void setup() {
// declare the ledPin as an OUTPUT:
Serial.begin(9600);
}

void loop() {
// read the value from the sensor:
sensorValue = analogRead(sensorPin);
delay(500);
Serial.print("sensor = " );
Serial.println(sensorValue);

if(sensorValue <= 300)
{
Serial.println("Dry Soil");
}
else if(sensorValue > 300 && sensorValue <= 700)
{
Serial.println("Humid Soil");
}
else
{
Serial.println("in Water");
}
}