#include <ph4502c_sensor.h>

PH4502C_Sensor ph4502c(A0, A1, 7.00); //PH_Pin, TEMP_Pin, ONE POINT CALIBRATION

void setup() {
  Serial.begin(9600);

  ph4502c.init();
}

void loop() {

  float sensor1_val;

  // ONE POINT CALIBRATION
  sensor1_val = ph4502c.read_ph_level();

  // CONVERT 'ONE POINT CALIBRATION' -> 'TWO POINT CALIBRATION' with formula (y = m*x + t)
  sensor1_val =  0.3663 * sensor1_val + 4.138205;

  Serial.print(sensor1_val);
  Serial.println(" PH");

  const float BETA = 3950; // should match the Beta Coefficient of the thermistor
  int analogValue =  ph4502c.read_temp();
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  Serial.print(celsius);
  Serial.println(" °C");

  Serial.println();
  delay(2000);
}