Arduino UNO High Precision Counting Scale

1#include "HX711.h"
2#include"math.h"
3#include <EEPROMex.h>
4#include  <EEPROMVar.h>
5#include <LiquidCrystal.h>  
6#define BUTTON 7 
7#define LED  13 
8#define TAREBUTTON 10
9#define buzzer 8
10// HX711.DOUT - pin #A2
11//  HX711.PD_SCK - pin #A3
12LiquidCrystal lcd(12, 11, 5, 4, 3, 2); 
13
14HX711 scale(A2,  A3); // parameter "gain" is ommited; the default value 128 is used by the library
15
16long  somma1=0;
17float I=0;
18int a;
19float b;
20float calibval1;
21float calibval2;
22float  media2=0;
23float media1=0;
24long somma2=0;
25float pmax= 900;
26int val=0;
27int  val1=0; //valore del pulsante di tara
28float t =0;
29float g=0;
30void setup()  {
31  scale.set_scale();
32  scale.tare();
33  pinMode (buzzer, OUTPUT);
34  tone(buzzer,440,1000);
35  delay(500);
36  noTone(buzzer);
37  delay(200);
38  tone (buzzer,330,1000);
39  delay(1000);
40  noTone(buzzer);
41Serial.begin  (9600);
42  lcd.begin(16, 2); 
43  lcd.print ("Fede Bil");
44  lcd.setCursor(  0,1);
45  lcd.print ("ver.1.0 :)");
46   for (int positionCounter = 0; positionCounter  < 6; positionCounter++) {
47    // scroll one position left:
48    lcd.scrollDisplayRight();
49    // wait a bit:
50    delay(450);} 
51     for (int positionCounter = 0; positionCounter  < 6; positionCounter++) {
52    // scroll one position left:
53    lcd.scrollDisplayLeft();
54    // wait a bit:
55    delay(450);}
56  delay(3000);
57  lcd.clear ();
58  lcd.print ("Press Button 2");
59  lcd.setCursor(0,1);
60  lcd.print("to calibrate");
61  delay(1500);
62 pinMode(LED, OUTPUT); 
63 pinMode (TAREBUTTON,OUTPUT); //IMPOSTA  IL PULSANTE DI TARA
64 pinMode(BUTTON, INPUT);     // imposta il pin digitale come  input 
65val=digitalRead (BUTTON);
66if (val==HIGH){
67  tone(buzzer,1047,1000);
68digitalWrite(LED,  HIGH);
69calibrazione();}
70else {
71  tone(buzzer,660,500);
72Serial.println  (EEPROM.readFloat(10)); // restituisce il valore float memorizzato all'indirizzo  indicato Ricarica calibval1
73calibval2= (EEPROM.readFloat(10));
74Serial.print  ("calibval2=");
75Serial.println (calibval2);
76scale.set_scale (calibval2);
77}}
78
79void  loop() {
80 
81pippo:  I= (scale.get_units(10));
82Serial.println(I);
83if (I  < 1 &&I>0)
84{ val1= digitalRead (TAREBUTTON);
85if (val1==HIGH){
86  tone(buzzer,622,1000);
87  lcd.clear();
88  lcd.print ("Tara");
89  delay (1000);
90  t= scale.get_units(10);
91  g=round(t);
92  scale.tare();}
93  lcd.clear();
94  lcd.print("d=0,5g");
95  //lcd.setCursor(9,0);
96 lcd.setCursor(0,1);
97  lcd.print("0.00");
98  lcd.setCursor(9,0);
99  lcd.print ("d=0.2g");
100  lcd.setCursor (9,1);
101  lcd.print(I);
102  delay(500);
103  Serial.println ("0.00");
104   val=digitalRead (BUTTON);
105  if (val==HIGH){
106  tone(buzzer,1047,500);
107digitalWrite(LED, HIGH);
108menu();}
109else {
110}
111  goto pippo;
112} 
113val1= digitalRead (TAREBUTTON);
114if (val1==HIGH){
115  tone(buzzer,622,1000);
116  lcd.clear();
117  lcd.print ("Tara");
118  delay (1000);
119  t =scale.get_units(10);
120   g=round(t);
121  scale.tare();
122 val=digitalRead (BUTTON); 
123  if (val==HIGH){
124  tone(buzzer,1047,500);
125digitalWrite(LED, HIGH);
126menu();}
127else {
128}}
129  int c= (I*10);
130  int e = (I*10);
131 // e=round (c);
132 int peso_div = (e+1)-((e+1)%2);
133int  peso_div_5 = (c+2)-((c+2)%5);
134  float f = (peso_div);
135  float peso2 = (f/10);
136   float d = (peso_div_5);
137  float pesofin=(d/10);
138   if (pesofin > pmax)
139   {tone(buzzer,1047,2000);
140     lcd.clear();
141   lcd.print ("Overload");
142    goto pippo;}
143   lcd.clear();
144   lcd.setCursor (0,0);
145    lcd.print  ("d=0,5g");
146    lcd.setCursor(0, 1); 
147    lcd.print (pesofin);
148    lcd.setCursor(9,0);
149    lcd.print ("d=0.2g");
150    lcd.setCursor (9,1);
151    lcd.print (peso2);
152    delay(150);
153    val=digitalRead (BUTTON);
154if (val==HIGH){
155  tone(buzzer,1047,500);
156digitalWrite(LED,  HIGH);
157lcd.clear();
158menu();}
159else {
160}
161}
162