#include <stdio.h>
#include <EEPROM.h>
//#include "HX711.h"
//#include <HX711_ADC.h>

#define GAIN_128 25
#define GAIN_64 27
#define NUMBER_OF_HX711 11
#define M 100 //Anzahl Messwerte pro Messstelle

// Pinbelegungen für CLK und DAT der Sensoren
const int HX711_dout[NUMBER_OF_HX711] = {22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42};
const int HX711_sck[NUMBER_OF_HX711] = {23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43};
const int doutPin = 22;
const int sckPin = 23;


void setup() {
  Serial.begin(57600);
  for(int a = 0; a < NUMBER_OF_HX711; a++){
    pinMode(HX711_dout[a], INPUT);
    pinMode(HX711_sck[a], OUTPUT);
  }
  unsigned long readHX711(int j);
  void print_Messdaten(unsigned long tab_Messdaten_raw[][NUMBER_OF_HX711]);
  
}
void loop() {

  unsigned long tab_Messdaten_raw[M][NUMBER_OF_HX711];
  int choice;

  //while(1);
  
  /*Serial.println("Bitte wählen Sie eine Option (1-11) für die Kalibrierung, oder 0 zum Beenden:");
  Serial.println("Option 1: Messen");
  Serial.println("Option 2: Messdaten anzeigen");
  Serial.println("Option 3: tba");*/
  while (!Serial.available()) {
    // Warten, bis eine Eingabe über die serielle Schnittstelle erfolgt
  }
  choice = Serial.parseInt();
  
  switch (choice) {
    case 0:
      Serial.println();
      Serial.println("Programm wird beendet.");
      break;
    case 1:
      //tab_Messdaten_raw = ;
      for(int i = 0; i < M; i++){
      Serial.println();
      Serial.print("Messung ");
      Serial.println(i + 1);
        for(int j = 0; j < NUMBER_OF_HX711; j++){
          unsigned long raw = readHX711(j);
          //Serial.print(" |Messstelle ");
          //Serial.print(j + 1);
          //Serial.print(": ");
          //Serial.print(raw);
          tab_Messdaten_raw[i][j] = raw; 
          delay(20);
        }
    
      }
      Serial.println();
      Serial.println("Messung beendet");
      //Serial.println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
      delay(1000);
      break;
   case 2:

    print_Messdaten(tab_Messdaten_raw);
    break;

    default:
    Serial.println("Ungültige Eingabe!");
    break;
  }
}
unsigned long readHX711(int j){  
  unsigned long data = 0;
  uint8_t dout;
  
  while(digitalRead(HX711_dout[j])){}  // wait until value is available
  for (uint8_t i=0; i<GAIN_128; i++){   //highest Gain
    //delayMicroseconds(1); // uncomment for fast MCUs
    digitalWrite(HX711_sck[j], 1);
    //delayMicroseconds(1); // uncomment for fast MCUs
    digitalWrite(HX711_sck[j], 0);
    if (i < (24)){
      dout = digitalRead(HX711_dout[j]);
      data = (data << 1) | dout;
    }
  }
  data = data ^ 0x800000; // flip bit 23
  
  return data; 
}

void print_Messdaten(unsigned long tab_Messdaten_raw[][NUMBER_OF_HX711]){

  for(int i = 0; i < M; i++){ 
    Serial.println();
    Serial.print("Messung ");
    Serial.print(i +1);
      for(int j = 0; j < NUMBER_OF_HX711; j++){ 
        Serial.print(" | ");
        Serial.print(tab_Messdaten_raw[i][j]); 
    }
  
  }

}

void powerDown(){
  digitalWrite(sckPin, LOW);
  digitalWrite(sckPin, HIGH);
}
void powerUp(){
  digitalWrite(sckPin, LOW);
}