Parkavi Prabhaharan
/
BarcodeScanner
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Fork of
USBHostKeyboard_HelloWorld
by 
Samuel Mokrani
Revision 7:4e0c80b26ba6, committed 2015-03-15
- Comitter:
- Parkz
- Date:
- Sun Mar 15 11:37:05 2015 +0000
- Parent:
- 6:10bb61d790cd
- Commit message:
- Scan a product from barcode scanner and display total bill amount & no. of items scanned. Just 4 products stored for reference
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Thu Mar 14 14:22:49 2013 +0000
+++ b/main.cpp Sun Mar 15 11:37:05 2015 +0000
@@ -1,12 +1,39 @@
#include "mbed.h"
#include "USBHostKeyboard.h"
-
+int price=0,items=0,temp=0;
+unsigned long long int code=0;
DigitalOut led(LED1);
-
+void update_price(int p);
void onKey(uint8_t key) {
- printf("Key: %c\r\n", key);
+ printf("%c", key);
+ if(key!=0x0A)
+ {
+ temp=key;
+ temp-=48;
+ code=temp+code*10;
+ }
+ else
+ {
+ switch(code)
+ {
+ case 42204268: update_price(200);
+ break;
+ case 8906002080021: update_price(25);
+ break;
+ case 8904043901015: update_price(17);
+ break;
+ case 8904004403756:update_price(36);
+ break;
}
-
+code=0;
+}
+}
+void update_price(int p)
+{
+ items++;
+ price+=p;
+ printf("No. of items=%d\tPrice=Rs.%d\n",items,price);
+ }
void keyboard_task(void const *) {
USBHostKeyboard keyboard;