PIC Project: Barcode Exam Entry

Barcode Exam Entry

Barcode Exam Entry adalah projek sebagai pengesahan kebenaran mengambil peperiksaan. Barcode CCD Camera akan membaca barcode dan mencari database pelajar atau calun peperiksaan. Sekiranya barcode terdapat dalam database, LED akan menyala warna hijau manakala jika barcode tidak terdapat dalam database, LED akan menyala warna merah.

Skematiknya adalah seperti berikut.

Schematic Barcode Exam Entry

PCB komponen layout nya adalah seperti berikut.

PCB Barcode Exam Entry

Senarai komponen projek Barcode Exam Entry seperti berikut.
No Component Label Unit
1 Barcode Reader CCD Camera RS232 1
2 Buzzer-PCB Mount Buzzer 1
3 Capacitor Ceramic 0.1uF C3 1
4 Capacitor Electrolytic 10uF C1-C2 2
5 Capacitor Electrolytic 10uF C6-C9 4
6 Cell Battery CR2032 Battery 3V 1
7 Cell Battery Holder Battery 3V 1
8 Crystal RTC 32.768kHz XTAL2 1
9 DC Jack Female DC Jack Female 1
10 Diode 1N4001 D1 1
11 IC 25LC1024 DIP 25LC1024 1
12 IC DS1307 DIP DS1307 1
13 IC MAX232 DIP MAX232 1
14 IC PIC16F1939 DIP PIC16F1939 1
15 IC Socket 16pin MAX232 1
16 IC Socket 40pin PIC16F1939 1
17 IC Socket 8pin 25LC1024 1
18 IC Socket 8pin DS1307 1
19 Keypad 4X4 Keypad 1
20 LCD 16X2 LCD 1
21 LED Red Green 5mm RG LED 1
22 PCB PCB 1
23 PCB Connector Header (Right) 4 Ways RS232 1
24 PCB Connector Housing 4 Ways RS232 1
25 PCB Stand (screw nut) PCB Stand 8
26 Resistor 0.25W 10K R3-R6 4
27 Resistor 0.25W 10K R7, R8, R10, R11 4
28 Resistor 0.25W 1K R12-R13 2
29 Resistor 0.25W 1K/4.7K R9 1
30 Resistor 0.25W 330 R1 1
31 Resistor 0.25W 330 R14-R15 2
32 Right Angle Pin Header (Male) ICSP 1
33 Slide Switch S1 1
34 Terminal Block 2 Way PWR 1
35 Terminal Pin RS232 4
36 Transistor 2N2222 Q1 1
37 Voltage Regulator 5V TO220 7805 1

Harga projek Barcode Exam Entry adalah RM1100 tidak termasuk bantuan teknikal. Di bawah adalah cara projek ini berfungsi.

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