1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2022/4/29 Sheet of
File: I:\办公2022\智能风扇4.29\原理图\Sheet1.SchDocDrawn By:
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RST
9
P3.0/RXD
10
P3.1/TXD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
P3.5/T1
15
P3.6/WR
16
P3.7/RD
17
XTAL2
18
XTAL1
19
GND
20
P2.0
21
P2.1
22
P2.2
23
P2.3
24
P2.4
25
P2.5
26
P2.6
27
P2.7
28
PSEN
29
ALE/PROG
30
EA
31
P0.7
32
P0.6
33
P0.5
34
P0.4
35
P0.3
36
P0.2
37
P0.1
38
P0.0
39
VCC
40
U1
80511 2
Y1
XTAL
Vin Vout
GND
78L05
Volt Reg
30pF
C6
Cap
10uF
C5
Cap Pol1
30pF
C7
Cap
10K
R?
Res2
0.1uF
C2
Cap
100uF
C1
Cap Pol1
0.1uF
C4
Cap
100uF
C3
Cap Pol1
1
2
P1
电源接口
GND
GND
VCC
VCC
15
A
14
D7
13
D6
12
D5
11
D4
10
D3
9
D2
8
D1
7
D0
6
E
5
RW
4
RS
3
V0
2
VCC
1
GND
16
K
LCD1602
LCD1
1
2
3
4
5
6
7
8
9
RP1
RESP
S1
SW-PB
S2
SW-PB
GND
S3
SW-PB
S4
SW-PB
S5
SW-PB
S6
SW-PB
GND
P10
P11
P12
P13
P14
P15
P10
P11
P12
P13
P14
M
B1
Motor Step
VCC
1B
1
2B
2
3B
3
4C
15
2C
17
1C
18
4B
4
5B
5
6B
6
8C
11
6C
13
5C
14
7B
7
COM
10
8B
8
GND
9
7C
12
3C
16
U2
ULN2803
3
VCC
2
DQ
1
GND
30.0
U3
DS18B20
GND
VCC
P37
P37