Member #559646

Member Since: June 2, 2014

Country: United States

  • ,i have an arduino + lcd keypad and i want to put a function in a case menu but i dont know how .th function must count how many times i push a button in a period of time.i use pin 2 and 3 for buton.if somebody can help me with the cod.

  • hi everyone ,i have an arduino + lcd keypad and i want to put a function in a case menu but i dont know how .th function must count how many times i push a button in a period of time.i use pin 2 and 3 for buton.if somebody can help me with the cod.

    my menu cod is this:

    include <LiquidCrystal.h>

    // Initialize the library with the numbers of the interface pins LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

    //States for the menu. int currentMenuItem = 0; int lastState = 0;

    void setup() { //Set the characters and column numbers. lcd.begin(16, 2); //Print default title. clearPrintTitle(); }

    void loop() { //Call the main menu. mainMenu(); }

    void mainMenu() { //State = 0 every loop cycle. int state = 0; //Refresh the button pressed. int x = analogRead (0); //Set the Row 0, Col 0 position. lcd.setCursor(0,0);

    //Check analog values from LCD Keypad Shield if (x < 100) { //Right } else if (x < 200) { //Up state = 1; } else if (x < 400){ //Down state = 2; } else if (x < 600){ //Left } else if (x < 800){ //Select state = 3; }

    //If we are out of bounds on th menu then reset it. if (currentMenuItem < 0 || currentMenuItem > 4) { currentMenuItem = 0; }

    //If we have changed Index, saves re-draws. if (state != lastState) { if (state == 1) { //If Up currentMenuItem = currentMenuItem - 1; displayMenu(currentMenuItem); } else if (state == 2) { //If Down currentMenuItem = currentMenuItem + 1;
    displayMenu(currentMenuItem); } else if (state == 3) { //If Selected selectMenu(currentMenuItem); } //Save the last State to compare. lastState = state; } //Small delay delay(5); }

    //Display Menu Option based on Index. void displayMenu(int x) { switch (x) { case 1: clearPrintTitle(); lcd.print (“->TESTARE BATRANI”); break; case 2: clearPrintTitle(); lcd.print (“->TESTARE TINERI”); break; case 3: clearPrintTitle(); lcd.print (“->TESTARE COPII”); break; } }

    //Print a basic header on Row 1. void clearPrintTitle() { lcd.clear(); lcd.setCursor(0,0); lcd.print(“MENU TESTER”); lcd.setCursor(0,1); }

    //Show the selection on Screen. void selectMenu(int x) { switch (x) { case 1: clearPrintTitle(); lcd.print (“Selectat TEST BATRANI”); //Call the function that belongs to Option 1 break; case 2: clearPrintTitle(); lcd.print (“Selectat TEST TINERI”); //Call the function that belongs to Option 2 break; case 3: clearPrintTitle(); lcd.print (“Selectat TEST COPII”); //Call the function that belongs to Option 3 break; } }

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