Open-Acidification/OnePointCal.ino at master · PlasmaIntec/Open-Acidification · GitHub

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// ************************************************
// One Point Calibration
// ************************************************
void OnePointCal() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(F("Calibration mode"));
  lcd.setCursor(3, 1);
  lcd.print(F("One-point"));
  delay(5000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(F("Buffer pH:"));
  lcd.setCursor(0, 1);
  lcd.print(F("  .   "));

  Key = customKeypad.waitForKey();
  midBuffer = (Key - '0') * 10;
  lcd.setCursor(0, 1);
  lcd.print(Key);
  Serial.print(F("Tens place: "));
  Serial.println(Key);

  Key = customKeypad.waitForKey();
  midBuffer = (Key - '0') + midBuffer;
  lcd.setCursor(1, 1);
  lcd.print(Key);
  Serial.print(F("Ones place: "));
  Serial.println(Key);

  Key = customKeypad.waitForKey();
  midBuffer = ((Key - '0') * 0.1) + midBuffer;
  lcd.setCursor(3, 1);
  lcd.print(Key);
  Serial.print(F("Tenths place: "));
  Serial.println(Key);

  Key = customKeypad.waitForKey();
  midBuffer = ((Key - '0') * 0.01) + midBuffer;
  lcd.setCursor(4, 1);
  lcd.print(Key);
  Serial.print(F("Hundreths place: "));
  Serial.println(Key);

  Key = customKeypad.waitForKey();
  midBuffer = ((Key - '0') * 0.001) + midBuffer;
  lcd.setCursor(5, 1);
  lcd.print(Key);
  Serial.print(F("Thousanths place: "));
  Serial.println(Key);
  midcalstring = premidcalstring + String(midBuffer);
  Serial.print(midcalstring);


  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(F("Press '#' to cal"));
  while (Key != '#') {
    /*
         Serial1.print("R");                              //Ask for pH reading
         Serial1.print('\r');                               //add a <CR> to the end of the string

          if (Serial1.available() > 0) {                     //if we see that the Atlas Scientific product has sent a character
            char inchar = (char)Serial1.read();              //get the char we just received
            sensorstring += inchar;                           //add the char to the var called sensorstring
            if (inchar == '\r') {                             //if the incoming character is a <CR>
              sensor_string_complete = true;                  //set the flag
            }
          }


          if (sensor_string_complete == true) {               //if a string from the Atlas Scientific product has been received in its entirety
            if (isdigit(sensorstring[0])) {                   //if the first character in the string is a digit
              pH = sensorstring.toFloat();                    //convert the string to a floating point number so it can be evaluated by the Arduino
            }
            sensorstring = "";                                //clear the string
            sensor_string_complete = false;                   //reset the flag used to tell if we have received a completed string from the Atlas Scientific product
          }
    */

    unsigned long sensor_currentMillis = millis();
    if (sensor_currentMillis - sensor_previousMillis >= sensor_interval) {
      sensor_previousMillis = sensor_currentMillis;

      Get_pH();
      Get_Temperature();
      Set_Temp_Comp();
    }


    lcd.setCursor(0, 1);
    lcd.print(F("pH="));
    lcd.print(pH, 3);


    Key = customKeypad.getKey();
  }
  Key = NO_KEY;

  Serial1.print(midcalstring);                      //send that string to the Atlas Scientific product
  Serial1.print('\r');                             //add a <CR> to the end of the string

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(F("###Calibration##"));
  lcd.setCursor(0, 1);
  lcd.print(F("####Complete####"));
  delay(3000);
}