Hi. i've already create coding for the barcode scanner to arduino and display on the serial monitor. but i want to output it to my 20x4 LCD. please take a look of my coding and what i need do to display barcode output to lcd. i also did refer to other coding like from oleg , shahrulnizam and many more but i still confuse how to do it. and most coding i refer are using 16x2 LCD.
#include <LiquidCrystal.h>
#include <hidcomposite.h>
#include <hidescriptorparser.h>
#include <hidusagestr.h>
#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 <avr/pgmspace.h>
#include <Usb.h>
#include <usbhub.h>
#include <avr/pgmspace.h>
#include <hidboot.h>
USB Usb;
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)
{
if(key!=19) Serial.print((char)key);
else Serial.println();
};
KbdRptParser Prs;
void setup()
{
Serial.begin(9600);
if(Usb.Init()==-1) Serial.println("OSC did not start.");
else Serial.println("Barcode Ready");
Hid.SetReportParser(0,(HIDReportParser*)&Prs); //Change "Keyboard" for "Hid"
}
void loop()
{
Usb.Task();
}