IN OUT
GND
IC2
PB7(XTAL2/TOSC2)
PC6(RESET)
PD7(AIN1)
PD6(AIN0)
PD5(T1)
PD4(XCK/T0)
PD3(INT1)
PD2(INT0)
PD1(TXD)
PD0(RXD)
PB4(MISO)
PB5(SCK)
PB3(MOSI/OC2)
PB2(OC1B)
PB1(OC1A)
PB0(ICP)
PC0(ADC0)
PC1(ADC1)
PC2(ADC2)
PC3(ADC3)
PC4(ADC4/SDA)
PC5(ADC5/SCL)
AREF
PB6(XTAL1/TOSC1)
ATmega8/88/168/328
23
24
25
26
27
28
14
15
16
17
18
19
4
3
2
5
6
11
12
13
1
10
21
9
GND
8
VCC
7
AVCC
AGND
20
22
27k
33k
9V
22p
8MHz
100n
100n100n
Ubat
9
LCD 2x16
1
2
16
15
D7
D6
D5
3
14
4
5
13
12
6
7
11
10
8
D4
D3
D2
D1
D0
E
R/W
RS
VEE
GND
+5V
Ubat
2k2
33−270
BC547
10k
TP2
TP3
TP1
Test
LED1
R10
T3
BC557C
C1
T2
BC547
R1
680
R3
680
R5
680
R2
470k
R4
470k
R6
470k
C2
10n
T1
R7
3k3
R11
R13
10k
3
5
1
MISO
SCK
RESET
2
4
6
VCC
MOSI
GND
ISP
Reset
Reset
22p
1n
R9
100k
100n
10k
27k
R8
R14
C4
C6
R16
2.5V
LT1004
R12
3k3
R15
C5
10u
C9
C3
C10 10u
VCC
VCC
VCC
VCC
VCC
VCC
VCC
