เซนเซอร์วัดความชื้นในดินแบบ Capacitive Soil Moisture Sensor SNP-00136

1/* Change these values based on your observations */
2#define wetSoil 277   // Define max value we consider soil 'wet'
3#define drySoil 380   // Define min value we consider soil 'dry'
4
5// Define analog input
6#define sensorPin A0
7
8void setup() {  
9  Serial.begin(9600);
10}
11
12void loop() {
13  // Read the Analog Input and print it
14  int moisture = analogRead(sensorPin);
15  Serial.print("Analog output: ");
16  Serial.println(moisture);
17  
18  // Determine status of our soil
19  if (moisture < wetSoil) {
20    Serial.println("Status: Soil is too wet");
21  } else if (moisture >= wetSoil && moisture < drySoil) {
22    Serial.println("Status: Soil moisture is perfect");
23  } else {
24    Serial.println("Status: Soil is too dry - time to water!");
25  }
26  Serial.println();
27  
28  // Take a reading every second
29  delay(1000);
30}