How can I modify this code for comparing

Projects Programming
1

I want to put the (char)key in string because I want to use it for comparing. But I ended up displaying 1 character at a time and it compare 1 by 1 in condition. It is the code for barcode. Where will put the if else condition statement thanks for helping

#include <hid.h>                           //Add to Oleg Mazurov code to Bar Code Scanner
#include <hiduniversal.h>                  //Add to Oleg Mazurov code to Bar Code Scanner
#include <usbhub.h>
#include <LiquidCrystal.h>
#include <avr/pgmspace.h>
#include <Usb.h>
#include <usbhub.h>
#include <avr/pgmspace.h>
#include <hidboot.h>
 
#define DISPLAY_WIDTH 16
 
// initialize the LCD library with the numbers of the interface pins
LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
 
USB     Usb;
USBHub     Hub(&Usb);                                          //I enable this line
HIDUniversal      Hid(&Usb);                                  //Add this line so that the barcode scanner will be recognized, I use "Hid" below 
HIDBoot<HID_PROTOCOL_KEYBOARD>    Keyboard(&Usb);
 
class KbdRptParser : public KeyboardReportParser
{
        void PrintKey(uint8_t mod, uint8_t key);             // Add this line to print character in ASCII
protected:
  virtual void OnKeyDown  (uint8_t mod, uint8_t key);
  virtual void OnKeyPressed(uint8_t key);
};
 
void KbdRptParser::OnKeyDown(uint8_t mod, uint8_t key)  
{
    uint8_t c = OemToAscii(mod, key);
 
    if (c)
        OnKeyPressed(c);
}
 
/* what to do when symbol arrives */
void KbdRptParser::OnKeyPressed(uint8_t key)  
{
static uint32_t next_time = 0;      //watchdog
static uint8_t current_cursor = 0;  //tracks current cursor position  
 
    if( millis() > next_time ) {
      lcd.clear();
      current_cursor = 0;
      delay( 5 );  //LCD-specific 
      lcd.setCursor( 0,0 );
    }//if( millis() > next_time ...
 
    next_time = millis() + 200;  //reset watchdog
 
    if( current_cursor++ == ( DISPLAY_WIDTH + 1 )) {  //switch to second line if cursor outside the screen
      lcd.setCursor( 0,1 );
    }
 
    Serial.print( (char)key );      //Add char to print correct number in ASCII
    lcd.print( (char)key );          //Add char to print correct number in ASCII
    String input=(char)key;
    
    if (input=="1234567");
    {
      lcd.setCursor(0,0);
      lcd.print((char)key);
      delay(200);
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("Matched");

    }
    else
   {
      lcd.setCursor(0,0);
      lcd.print((char)key);
      delay(200);
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("Unmatched");
    }


};
 
KbdRptParser Prs;
 
void setup()
{
    Serial.begin( 115200 );
    Serial.println("Start");
 
    if (Usb.Init() == -1) {
        Serial.println("OSC did not start.");
    }
 
    delay( 200 );
 
    Hid.SetReportParser(0, (HIDReportParser*)&Prs);        //Here I change  "Keyboard" for "Hid"
    // set up the LCD's number of columns and rows: 
    lcd.begin(DISPLAY_WIDTH, 2);
    lcd.clear();
    lcd.noAutoscroll();
    lcd.print("Ready");
    delay( 200 );
}
 
void loop()
{
  Usb.Task();
}

sketch_jul07b.ino (3.33 KB)

2

Please do us all a favour and post the code here, in code tags, of course.

3

I want to put the (char)key in string

Permission granted. Go right ahead. Create an array and an index. When you have a key, add it to the string, increment the index, and store another NULL.