[Arduino] Soil Moisture

Hi,

after tested it with raspberry i tried to do the same with Arduino Uno.

With Arduino Uno is simple obtain the value of how dry/wet is soil of your plants.

What we need is:

• Arduino Uno
• Soil Moisture sensor (check it on amazon)
• Some cables

The connection schema is this:

• 5V (Arduino) --> VCC (Sensor)
• GND (Arduino) --> GND (Sensor)
• A0 (Arduino) --> D0 (SGNL of sensor)

This is the code:

#define SensorPin A0 

float sensorValue = 0; 

void setup() { 

  Serial.begin(9600); 

} 

void loop() { 

 for (int i = 0; i <= 100; i++) 

 { 

    sensorValue = sensorValue + analogRead(SensorPin); 

    delay(1); 

 } 

 sensorValue = sensorValue/100.0; 

 if(sensorValue <= 50)

 {

    Serial.println("Water detected: " + String(sensorValue));  

 }else{

    Serial.println("Low Water level detected: " + String(sensorValue));  

 }

 

 delay(5000); 

} 

and this is the output:

Have fun!!