#include <light_CD74HC4067.h>




const int signal_pin = A0; // Pin A0 - Connected to Sig pin of CD74HC4067
const int s0Pin = 12; // S0 pin
const int s1Pin = 11; // S1 pin
const int s2Pin = 10; // S2 pin
const int s3Pin = 9;  // S3 pin

// set pins for multiplexer
CD74HC4067 mux(s0Pin,s1Pin,s2Pin,s3Pin);  // create a new CD74HC4067 object with its four select lines


void setup() {
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);

  mux.channel(0); // Select channel 0
  pinMode(signal_pin, OUTPUT);
  digitalWrite(signal_pin, LOW); // Turn off relay

  Serial.begin(9600); // open the serial port at 9600 bps:
}


void loop() {
  mux.channel(15);
  delay(10);
  pinMode(signal_pin, INPUT);
  delay(10);
	int soilSensorPinValue = analogRead(signal_pin);
  Serial.println("moisture: " + String(soilSensorPinValue));


  mux.channel(0); // Select channel 0
  pinMode(signal_pin, OUTPUT); // Set as output for controlling relay


  if(soilSensorPinValue > 600){
    digitalWrite(signal_pin, HIGH); // Turn on relay
  }
  else{
    digitalWrite(signal_pin, LOW); // Turn off relay
  }
  delay(1000);
}