VCC
VCC
VCC
GND
VCC
GND
VCC
VCC
GND
GND
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RES
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(A8)
21
P2.1(A9)
22
P2.2(A10)
23
P2.3(A11)
24
P2.4(A12)
25
P2.5(A13)
26
P2.6(A14)
27
P2.7(A15)
28
PSEN
29
ALE/PROG
30
EA/VPP
31
P0.7(AD7)
32
P0.6(AD6)
33
P0.5(AD5)
34
P0.4(AD4)
35
P0.3(AD3)
36
P0.2(AD2)
37
P0.1(AD1)
38
P0.0(AD0)
39
VCC
40
U1
STC89C52
Y1
11.0592MHz
+
1 2
C1
10uf
1 2
C2
22PF
1 2
C3
22PF
VSS
1
VDD
2
VO
3
RS
4
RW
5
E
6
D0
7
D1
8
D2
9
D3
10
D4
11
D5
12
D6
13
D7
14
A
15
K
16
U2
LCD1602
VCC
GND
1 2
R3
10K
1 2
R2
2K
1 2
R1
10K
13
2
Q1
PNP三极管
+
F1
蜂鸣器
12
R7
1K
1
2
1
2
K0
按键
VCC GND
1 2
R4
4.7K
1 2
R8 1K
GND
1
DQ
2
VCC
3
U3
DS18B20
+5V
GND
VCC
11
GND
12
TXD
13
RXD
14
PEN
15
NET
16
DTR
5
S+
4
S-
3
M+
2
M-
1
RI
10
STA
9
VEX
8
VBT
6
GND
7
DTR
17
U7
SIM800C
VCC
1
OUT
2
GND
3
U6
声音传感器
12
D1
LED
+
1 2
C5
1000uf-25v
1
1
2
2
3
3
4
4
D D
C C
B B
A A
File: Drawn By:
Date: Sheet Of
Size
A4
Number Revision
Title
VCC GND
VCC
1
OUT
2
GND
3
U4 温湿度传感器
1
2
3
4
5
6
P2
睡眠模式开关
GND
CURRENT SENSING A
1
OUTPUT 1
2
OUTPUT 2
3
SUPPLY VOLTAGE VS
4
INPUT 1
5
ENABLE A
6
INPUT 2
7
GND
8
LOGIC SUPPLY VOLTAGE VSS
9
INPUT 3
10
ENABLE B
11
INPUT 4
12
OUTPUT 3
13
OUTPUT 4
14
CURRENT SENSING B
15
L298N
+5V
100nF
GND
+12V
100nF
GND
GND
1
VOUT
2
VIN
3
VOUT
4
AMS1117-5.0
+12V
C6
100nF
C7
10uF
GND
C8
100nF
C9
10uF
+5V
GND
1
VOUT
2
VIN
3
VOUT
4
AMS1117-3.3
+5V
C4
100nF
C10
10uF
GND
C11
100nF
C12
10uF
+3.3V
RS
RW
EN
B0
B1
B2
B3
B4
B5
B6
B7
P26
P30
P31
P23
P25
P27
B0
B1
B2
B3
B4
B5
B6
B7
P26
P25
P24
P23
P22
P21
P20
P37
P36
P35
P34
P33
P32
P31
P30
P17
P16
P15
P14
P13
EN
RW
RS
P27
P24
P14
P15
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