======Code Final======

Code final avec le débit volumique pour le moteur, le pavé numérique et l'écran LCD

<code=cpp>
#include <LiquidCrystal.h>
#include <Keypad.h>
  
int x; 
#define BAUD (9600)
 
LiquidCrystal lcd(7, 8, 9, 10, 11 , 12);
const byte ROWS = 4; 
const byte COLS = 4; 
char keys[ROWS][COLS] = {
  {'1','2','3','+'},
  {'4','5','6','-'},
  {'7','8','9','*'},
  {'X','0','=','/'},
};
byte rowPins[ROWS] = {53,51,49,47}; //connect to row pinouts 
byte colPins[COLS] = {45,43,41,39}; //connect to column pinouts
Keypad myKeypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
 
//variables declaration
boolean valOnePresent = false;
boolean next = false;
boolean final = false;
boolean calcul_termine = false;
String num1, num2;
int ans = 200;
int temps = 0;
int direction = 0;
char op;
 
void setup(){
  pinMode(6,OUTPUT); // Enable
  pinMode(5,OUTPUT); // Step
  pinMode(4,OUTPUT); // Dir
  digitalWrite(6, HIGH); // Set Enable low & eliminate the motor’s initial vibration noise
  lcd.begin(16,2);
  lcd.setCursor(0,0);
  lcd.print("Debit Volumique");
  delay(2000);
  lcd.clear(); //clears the LCD screen and positions the cursor in the upper-left corner. 
  Serial.begin(BAUD); 
}    
 
void loop(){
 char key = myKeypad.getKey(); 
  if ((calcul_termine == false) && key != NO_KEY && (key=='1'||key=='2'||key=='3'||key=='4'||key=='5'||key=='6'||key=='7'||key=='8'||key=='9'||key=='0')){
    if (valOnePresent != true){
      num1 = num1 + key;
      int numLength = num1.length();
      lcd.setCursor(15 - numLength, 0); //to adjust one whitespace for operator
      lcd.print(num1);
    }
    else {
      num2 = num2 + key;
      int numLength = num2.length();
      lcd.setCursor(15 - numLength, 1);
      lcd.print(num2);
      final = true;
    }
  }
  else if ((calcul_termine == false) && (valOnePresent == false) && (key != NO_KEY) && (key == '/' || key == '*' || key == '-' || key == '+')){
    if (valOnePresent == false){
      valOnePresent = true;
      op = key;
      lcd.setCursor(15,0); //operator on right corner
      lcd.print(op);
    }
  } 
if ((calcul_termine == false) && (final == true) && (key != NO_KEY) && (key == '=')) {
  if (op == '+'){
 
      ans = num1.toInt()*425  ;
      //1ml = 425steps
      temps = num2.toInt();
    }    
      lcd.clear();
      lcd.setCursor(15,0);
      lcd.autoscroll();
      lcd.print(ans);
      lcd.noAutoscroll();
      calcul_termine = true;
      valOnePresent = false;
      final = false;
} 
if (calcul_termine) {
    delay(2000);
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Direction");
    key = NO_KEY;
    while ( key == NO_KEY) {
    key = myKeypad.getKey();
    }
    if (key == '+') { 
    direction = 1;
    }
    else if (key == '-') {
      direction = 2;  
    }
}
if ((key != NO_KEY) && (key == 'X')){
    lcd.clear();
    valOnePresent = false;
    final = false;
    num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';
  } 
if (direction == 1){
     lcd.clear();
    lcd.print("Direction +ve");
      digitalWrite(6,LOW); // Set Enable low
        digitalWrite(4,HIGH); // Set Dir high
        for(int x = 0; x < ans; x++) // Loop ans times
      {
          digitalWrite(5,HIGH); // Output high
          delay(temps);
          digitalWrite(5,LOW); // Output low
          delay(temps);
        }
        delay(1000); // pause one second
     direction = 0; 
     calcul_termine = false;
     lcd.clear();   
     num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';  
    digitalWrite(6,HIGH); // Set Enable low
    }
else if (direction == 2){
     lcd.clear();
    lcd.print("Direction -ve"); 
      digitalWrite(6,LOW); // Set Enable low
        digitalWrite(4,LOW);  // Set Dir low
        for(int x = 0; x < ans; x++) // Loop ans times
      {
          digitalWrite(5,HIGH); // Output high
          delay(temps); 
          digitalWrite(5,LOW); // Output low
          delay(temps); 
        }
        delay(1000); // pause one second
        direction = 0;
        calcul_termine = false;
        lcd.clear();
        num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';
        digitalWrite(6,HIGH); // Set Enable low
 
    }               
}
</code>

Code Final sans débit
<code=cpp>
#include <LiquidCrystal.h>
#include <Keypad.h>
 
 
int x; 
#define BAUD (9600)
 
 
 
 
 
LiquidCrystal lcd(7, 8, 9, 10, 11 , 12);
const byte ROWS = 4; 
const byte COLS = 4; 
char keys[ROWS][COLS] = {
  {'1','2','3','+'},
  {'4','5','6','-'},
  {'7','8','9','*'},
  {'X','0','=','/'},
};
byte rowPins[ROWS] = {53,51,49,47}; //connect to row pinouts 
byte colPins[COLS] = {45,43,41,39}; //connect to column pinouts
Keypad myKeypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
 
 
//variables declaration
boolean valOnePresent = false;
boolean next = false;
boolean final = false;
boolean calcul_termine = false;
String num1, num2;
int ans = 200;
int direction = 0;
char op;
 
void setup(){
  pinMode(6,OUTPUT); // Enable
  pinMode(5,OUTPUT); // Step
  pinMode(4,OUTPUT); // Dir
  digitalWrite(6, HIGH); // Set Enable low
  lcd.begin(16,2);
  lcd.setCursor(0,0);
  lcd.print("Debit Volumique");
  delay(2000);
  lcd.clear(); //clears the LCD screen and positions the cursor in the upper-left corner. 
 
  Serial.begin(BAUD);
  
 
 
}    
 
void loop(){
 char key = myKeypad.getKey();
 
  if ((calcul_termine == false) && key != NO_KEY && (key=='1'||key=='2'||key=='3'||key=='4'||key=='5'||key=='6'||key=='7'||key=='8'||key=='9'||key=='0')){
    if (valOnePresent != true){
      num1 = num1 + key;
      int numLength = num1.length();
      lcd.setCursor(15 - numLength, 0); //to adjust one whitespace for operator
      lcd.print(num1);
    }
    else {
      num2 = num2 + key;
      int numLength = num2.length();
      lcd.setCursor(15 - numLength, 1);
      lcd.print(num2);
      final = true;
    }
  }
  else if ((calcul_termine == false) && (valOnePresent == false) && (key != NO_KEY) && (key == '/' || key == '*' || key == '-' || key == '+')){
    if (valOnePresent == false){
      valOnePresent = true;
      op = key;
      lcd.setCursor(15,0); //operator on right corner
      lcd.print(op);
    }
  }
 
if ((calcul_termine == false) && (final == true) && (key != NO_KEY) && (key == '=')) {
  if (op == '+'){
 
      ans = num1.toInt()*425  ;
      //1ml = 468pas et Dvmoteur = 0,2ml/s
    }    
      lcd.clear();
      lcd.setCursor(15,0);
      lcd.autoscroll();
      lcd.print(ans);
      lcd.noAutoscroll();
      calcul_termine = true;
      valOnePresent = false;
      final = false;
 
}
 
if (calcul_termine) {
    //lcd.print(Saisir la direction:
    delay(2000);
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Direction");
    key = NO_KEY;
    while ( key == NO_KEY) {
    key = myKeypad.getKey();
    }
    if (key == '+') { 
    direction = 1;
 
    }
    else if (key == '-') {
      direction = 2;  
    }
}
if ((key != NO_KEY) && (key == 'X')){
    lcd.clear();
    valOnePresent = false;
    final = false;
    num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';
  }
 
if (direction == 1){
     lcd.clear();
    lcd.print("Direction +ve");
 
      digitalWrite(6,LOW); // Set Enable low
        digitalWrite(4,HIGH); // Set Dir high
        for(int x = 0; x < ans; x++) // Loop 200 times
      {
 
          digitalWrite(5,HIGH); // Output high
          delay(1); // Wait
          digitalWrite(5,LOW); // Output low
          delay(1); // Wait
        }
        delay(1000); // pause one second
     direction = 0; 
     calcul_termine = false;
     lcd.clear();   
     num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';  
    digitalWrite(6,HIGH); // Set Enable low
    }
 
else if (direction == 2){
     lcd.clear();
    lcd.print("Direction -ve"); 
 
      digitalWrite(6,LOW); // Set Enable low
        digitalWrite(4,LOW); // Set Dir hig
        for(int x = 0; x < ans; x++) // Loop 200 times
      {
 
          digitalWrite(5,HIGH); // Output high
          delay(1); // Wait
          digitalWrite(5,LOW); // Output low
          delay(1); // Wait
        }
        delay(1000); // pause one second
        direction = 0;
        calcul_termine = false;
        lcd.clear();
        num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';
        //lcd.setCursor(0,0);  
        digitalWrite(6,HIGH); // Set Enable low
 
    }               
}
</code>


Calculette avec Moteur
<code=cpp>
#include <LiquidCrystal.h>
#include <Keypad.h>


int x; 
#define BAUD (9600)



 
 
LiquidCrystal lcd(7, 8, 9, 10, 11 , 12);
const byte ROWS = 4; 
const byte COLS = 4; 
char keys[ROWS][COLS] = {
  {'1','2','3','+'},
  {'4','5','6','-'},
  {'7','8','9','*'},
  {'X','0','=','/'},
};
byte rowPins[ROWS] = {53,51,49,47}; //connect to row pinouts 
byte colPins[COLS] = {45,43,41,39}; //connect to column pinouts
Keypad myKeypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
 
 
//variables declaration
boolean valOnePresent = false;
boolean next = false;
boolean final = false;
boolean calcul_termine = false;
String num1, num2;
int ans = 200;
int direction = 0;
char op;
 
void setup(){
  lcd.begin(16,2);
  lcd.setCursor(0,0);
  lcd.print("Debit Volumique");
  delay(2000);
  lcd.clear(); //clears the LCD screen and positions the cursor in the upper-left corner. 

Serial.begin(BAUD);
  pinMode(6,OUTPUT); // Enable
  pinMode(5,OUTPUT); // Step
  pinMode(4,OUTPUT); // Dir
  digitalWrite(6,LOW); // Set Enable low



}    
 
void loop(){
 char key = myKeypad.getKey();
 
  if ((calcul_termine == false) && key != NO_KEY && (key=='1'||key=='2'||key=='3'||key=='4'||key=='5'||key=='6'||key=='7'||key=='8'||key=='9'||key=='0')){
    if (valOnePresent != true){
      num1 = num1 + key;
      int numLength = num1.length();
      lcd.setCursor(15 - numLength, 0); //to adjust one whitespace for operator
      lcd.print(num1);
    }
    else {
      num2 = num2 + key;
      int numLength = num2.length();
      lcd.setCursor(15 - numLength, 1);
      lcd.print(num2);
      final = true;
    }
  }
  else if ((calcul_termine == false) && (valOnePresent == false) && (key != NO_KEY) && (key == '/' || key == '*' || key == '-' || key == '+')){
    if (valOnePresent == false){
      valOnePresent = true;
      op = key;
      lcd.setCursor(15,0); //operator on right corner
      lcd.print(op);
    }
  }
  
if ((calcul_termine == false) && (final == true) && (key != NO_KEY) && (key == '=')) {
  if (op == '+'){
     
      ans = num1.toInt() + num2.toInt();
    }
    else if (op == '-'){
      ans = num1.toInt() - num2.toInt();
    }
    else if (op == '*'){
      ans = num1.toInt() * num2.toInt();
    }
    else if (op == '/'){
      ans = num1.toInt() / num2.toInt();
    }    
      lcd.clear();
      lcd.setCursor(15,0);
      lcd.autoscroll();
      lcd.print(ans);
      lcd.noAutoscroll();
      calcul_termine = true;
      valOnePresent = false;
      final = false;
      
}

if (calcul_termine) {
    //lcd.print(Saisir la direction:
    delay(5000);
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("direction");
    key = NO_KEY;
    while ( key == NO_KEY) {
    key = myKeypad.getKey();
    }
    if (key == '+') { 
    direction = 1;
    
    }
    else if (key == '-') {
      direction = 2;  
    }
}
if ((key != NO_KEY) && (key == 'X')){
    lcd.clear();
    valOnePresent = false;
    final = false;
    num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';
  }

if (direction == 1){
     lcd.clear();
    lcd.print("direction pos");
      
      digitalWrite(6,LOW); // Set Enable low
        digitalWrite(4,HIGH); // Set Dir high
        for(int x = 0; x < ans; x++) // Loop 200 times
      {
        
          digitalWrite(5,HIGH); // Output high
          delay(10); // Wait
          digitalWrite(5,LOW); // Output low
          delay(10); // Wait
        }
        delay(1000); // pause one second
     direction = 0; 
     calcul_termine = false;
     lcd.clear();   
     num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';  
    }

else if (direction == 2){
     lcd.clear();
    lcd.print("direction neg"); 
      
      digitalWrite(6,LOW); // Set Enable low
        digitalWrite(4,LOW); // Set Dir hig
        for(int x = 0; x < ans; x++) // Loop 200 times
      {
        
          digitalWrite(5,HIGH); // Output high
          delay(10); // Wait
          digitalWrite(5,LOW); // Output low
          delay(10); // Wait
        }
        delay(1000); // pause one second
        direction = 0;
        calcul_termine = false;
        lcd.clear();
        num1 = "";
    num2 = "";
    ans = 0;
    op = ' ';
        //lcd.setCursor(0,0);  
            
    }               
}
</code>

[[http://www.instructables.com/id/Drive-a-Stepper-Motor-with-an-Arduino-and-a-A4988-/?ALLSTEPS|Vérification d'Ampère]]