#include <Arduino.h>

void setup() {
  // Initialize serial communication at a baud rate of 115200:
  Serial.begin(115200);
  Serial.println("ESP32 Oxygen Level Calculator");
  Serial.println("Enter Oxygen Sensor reading (percentage):");
}

void loop() {
  // Check if data is available to read
  if (Serial.available() > 0) {
    // Read the incoming data as a string
    String reading = Serial.readStringUntil('\n');

    // Convert the string to a float for percentage of oxygen
    float oxygenPercentage = reading.toFloat();

    // Print the received oxygen level
    Serial.print("Received Oxygen Level: ");
    Serial.print(oxygenPercentage);
    Serial.println("%");

    // Determine the status based on oxygen percentage
    if (oxygenPercentage >= 95) {
      Serial.println("Status: High - Normal oxygen level");
    } else if (oxygenPercentage >= 85 && oxygenPercentage < 95) {
      Serial.println("Status: Medium - Caution");
    } else {
      Serial.println("Status: Low - Dangerously low");
    }

    // Prompt for next input
    Serial.println("Enter next Oxygen Sensor reading (percentage):");
  }

  delay(500); // Delay a little bit to improve stability
}