Diff: main.cpp

Revision:

1:eeb4a2a8550c

Parent:

0:c69a3d7bf65a

--- a/main.cpp	Wed Mar 11 14:52:38 2015 +0000
+++ b/main.cpp	Thu Mar 12 18:10:46 2015 +0000
@@ -1,38 +1,102 @@
 #include "mbed.h"
 #include "ID12RFID.h"
 #include "Keypad.h"
+#include "uLCD_4DGL.h"
 
 ID12RFID rfid(p14); // uart rx
 Serial pc(USBTX, USBRX);
 Keypad   keypad(p29,p24,p25,p27,p28,p30,p26);
-
+uLCD_4DGL lcd(p9, p10, p11);
 
+const int key[]= {5453460, 5469457, 1234567, 2345678};
+const int cost[]= {3,4, 5, 6};
+const char* item[]= {"milk","bread", "eggs", "juice"};
 
+int getIndex(int id);
+void clearId();
+char keypadId[7];
 
 int main()
 {
     printf("Hello World\n");
-    const int key[]= {5453460, 5469457};
-    const char* cost[]= {"$3","$4"};
-    const char* item[]= {"milk","bread"};
 
     int num;
-    int i, index=0;
+    int indexl=0;
+    int Id =4;
+    int indexKeyPad ;
+    int yValue = 2;
+    int totalCost =0;
+    lcd.baudrate(3000000);
+    lcd.background_color(0);
+    lcd.cls();
+    lcd.locate(0, 0);
+    lcd.printf("Welcome!");
+    lcd.locate(0, 15);
+    lcd.printf("Total:");
 
+    int j = 0;
     while(1) {
         if(rfid.readable()) {
             num = rfid.read();
-            for(i=0; i<2; i++) {
-                if(key[i] == num) {
-                    index = i;
-                }
+            indexl = getIndex(num);
+
+            pc.printf("id: %d, cost: %d, item: %s \n", key[indexl], cost[indexl], item[indexl]);
+            pc.printf("RFID Tag number : %d, %d\n", num, indexl);
+
+            lcd.locate(0, yValue);
+            lcd.printf("%s", item[indexl]);
+            lcd.locate(15, yValue);
+            lcd.printf("$%d", cost[indexl]);
+            totalCost = totalCost + cost[indexl];
+            lcd.locate(15, 15);
+            lcd.printf("$%d", totalCost);
+            yValue = yValue + 2;
+        }
+        
+        if(keypad.isNewAndPressed()) {
+            if(keypad.getKey() == '#') {
+                j=0;
+                lcd.color(BLACK);
+                lcd.locate(0,yValue);
+                lcd.printf("%s", keypadId);
+                lcd.color(GREEN);
+                Id = atoi (keypadId);
+                indexKeyPad = getIndex(Id);
+                pc.printf("%d, %d\n", Id, indexKeyPad);
+                lcd.locate(0, yValue);
+                lcd.printf("%s", item[indexKeyPad]);
+                lcd.locate(15, yValue);
+                lcd.printf("$%d", cost[indexKeyPad]);
+                totalCost = totalCost + cost[indexKeyPad];
+                lcd.locate(15, 15);
+                lcd.printf("$%d", totalCost);
+                yValue = yValue + 2;
+                clearId();
+
+            } else {
+                keypadId[j] = keypad.getKey();
+                lcd.locate(0, yValue);
+                lcd.printf("%s\n", keypadId);
+                j++;
             }
 
-            pc.printf("id: %d, cost: %s, item: %s \n", key[index], cost[index], item[index]);
-            pc.printf("RFID Tag number : %d\n", num);
-        }
-        if(keypad.isNewAndPressed()) {
-            pc.printf("Keypad button: %c\n", keypad.getKey());
         }
     }
 }
+int getIndex(int id)
+{
+    int i, indexl =0;
+    for(i=0; i<4; i++) {
+        if(key[i] == id) {
+            indexl = i;
+        }
+    }
+    return indexl;
+}
+
+void clearId(){
+    int k;
+    for(k=0; k<7; k++){
+        keypadId[k] = ' ';
+        }
+    }
\ No newline at end of file