   adjust2(voltage2);
   Serial.println(voltage2);
   
+  int sensorValue3 = analogRead(A7);
+  // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):
+  float voltage3 = sensorValue3 * (5.0 / 1023.0);
+  adjust3(voltage3);
+  
 }
 
 void adjust1(float v){

    showRed2();
  }else if (v > 1.01 && v < 2.0) {
    showGreen2();
  } else {
    turnOff();
  }

  shift.writeRegisters();
}

void showRed3(){
  shift.setRegisterPin(green3, LOW);   
  shift.setRegisterPin(red3, HIGH);  
  shift.writeRegisters();
}

void showGreen3(){
  shift.setRegisterPin(green3, HIGH);   
  shift.setRegisterPin(red3, LOW);   
  shift.writeRegisters();
}

void turnOff(){
  shift.clearRegisters();
  shift.writeRegisters();  
