// For: https://forum.arduino.cc/t/control-multiple-leds-by-an-analog-reading-after-going-trhough-an-amplifier/1064318/
// This Wokwi project: https://wokwi.com/projects/350889349735252562

const int ledUH = 8;
const int ledH  = 9;
const int ledN  = 10;
const int ledL  = 11;
const int ledUL = 12;

const int inaPin = A0;

#define ontime 300
#define offtime 200

void setup() 
{
  // put your setup code here, to run once:
  pinMode (ledUH, OUTPUT);
  pinMode (ledH, OUTPUT);
  pinMode (ledN, OUTPUT);
  pinMode (ledL, OUTPUT);
  pinMode (ledUL, OUTPUT);
  pinMode (inaPin, INPUT);

  Serial.begin(9600);
}

void loop() 
{
  // put your main code here, to run repeatedly:

  int x = analogRead(inaPin);
  float glucoValue = float(x);        // try the sketch with a float

  Serial.print("Value is: ");
  Serial.print(glucoValue,0);
  Serial.print(", ");

  if( glucoValue <= 170.0)
  {
    Serial.println("Very low");
    digitalWrite (ledUL, HIGH);
    delay(ontime);
    digitalWrite (ledUL, LOW);
    delay(offtime);
  }
  else if( glucoValue <= 500.0)
  {
    Serial.println("Low");
    digitalWrite (ledL, HIGH);
    delay(ontime);
    digitalWrite (ledL, LOW);
    delay(offtime);
  }
  else if( glucoValue <= 690.0)
  {
    Serial.println("Normal");
    digitalWrite (ledN, HIGH);
    delay(ontime);
    digitalWrite (ledN, LOW);
    delay(offtime);
  }
  else if( glucoValue <= 860.0)
  {
    Serial.println("High");
    digitalWrite (ledH, HIGH);
    delay(ontime);
    digitalWrite (ledH, LOW);
    delay(offtime);
  }
  else
  {
    Serial.println("Very High");
    digitalWrite (ledUH, HIGH);
    delay(ontime);
    digitalWrite (ledUH, LOW);
    delay(offtime);
  }
}