This is the schematic diagram and component layout and pcb layout of pcb attendance system

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D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 9/28/2015 Sheet of
File: D:Copy..Attendance System 1 layer.SCHDOCDrawn By:
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PIC18F46K22
RB7
RC0
RC1
GND
5V
RA0
RA2
RA1
RA4
RA3
RE0
RA5
RE2
RE1
RC3
RC2
RD1
RD0
RB6
RB5
RD6
RD5
GND
RD7
RB0
5V
RB2
RB1
RB4
RB3
RD4
RC7
RD2
RC4
RD3
RC6
RC5
0.1uF
C5
GND
5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
LCD
Q1
2N2222
330R1
1KR8
RA6
5V
RD5
RD4
RD3
RD2
RD0
RD1
GND
1
2
3
4
5
6
7
8
Keypad
330R6
330R7
330R9
330R10
10K
R5
10K
R4
10K
R3
10K
R2
RA5
RE0
RE1
RE2
RA0
RA1
RA2
RA3
5V
Vin Vout
GND
7805
10uF
C1
10uF
C2
GND
1
2
PWR
D1
1N4001 5VS1 VCC
10uF
C3
10uF
C4
3.3V
Vin Vout
GND
LM1117
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
Xbee
RD7
RD6
GND
3.3V
100
R13
1
2
3
4
5 6
7
89
10
11
12 13
14
15
16
MAX232
GND
5V
10uF
C6
10uF
C8
10uF
C7
10uF
C9
GND
RC7
5V
RB1
1K
R15
VCC
Q2
IRF540
GND
1
2
OUT
1
2
IN 1K
R14
5V
GND
RB0
1
2
3
4
5
ICSP
RB6
RB7
CLR
GND
GND
1
2
3
RS232
1
2
3
UART
GND
RC6
B
A
W9
W10
W5
W6
1
2
3
PWR_1
VCC
GND
5V
A
B
W8
1
2
3
4 5
6
7
8
DS1307
12
XTAL1
32.768kHz
Battery
3V
1K
R11
1K
R12
RC3
RC4
5V
GND
W3
W4
5V
RA4
Buzzer
RA7
RA6
CLR
W2
W1
W7