1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2022/6/12 Sheet of
File: E:\电路城（51单片机）\..\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
30pF
C2
Cap
10uF
C1
Cap Pol1
30pF
C3
Cap
10K
R1
Res2
GND
VCC
1
2
3
4
5
6
7
8
9
RP1
RESP
S1
SW-PB
Q1
PNP
LS1
Speaker
VCC
GND
10K
R3
Res2
S2
SW-PB
S3
SW-PB
S4
SW-PB
S5
SW-PB
P30
P31
P32
P33
P34
P35
P36
P37
P10
P11
P12
P13
P14
P15
P16
P17
Vin Vout
GND
7805
Volt Reg
0.1uF
C5
Cap
100uF
C4
Cap Pol1
0.1uF
C7
Cap
100uF
C6
Cap Pol1
1
2
P1
电源接口
GND
VCC
GND
P10
P11
P12
P13
VSUP
1
BASE
2
AVDD
3
VFB
4
AGND
5
VBG
6
INA-
7
INA+
8
INB-
9
INB+
10
DVDD
16
RATE
15
X1
14
X0
13
PD_SCK
11
DOUT
12
U2
HX711
Q2
PNP
GND
VCC
20K
R4
Res2
8.2K
R5
Res2
GND
1uF
C8
Cap
P36
P37
GND
1
2
P2
传感器接口
S6
SW-PB
S7
SW-PB
S8
SW-PB
S9
SW-PB
GND
P14
P15
P16
P17
S10
SW-PB
S11
SW-PB
GND
P34
P35
A
B
C
D
E
F
G
DP
1
2
3
4
5
6
DS1
PI780501
PI780502
PI780503
CO
PIC101
PIC102
PIC201
PIC202
PIC301
PIC302
PIC401
PIC402 PIC501
PIC502 PIC601
PIC602 PIC701
PIC702
PIC801
PIC802
PILCD10A
PILCD10D0 PILCD10D1
PILCD10D2
PILCD10D3 PILCD10D4 PILCD10D5 PILCD10D6
PILCD10D7
PILCD10E
PILCD10GND
PILCD10K
PILCD10RS
PILCD10RWPILCD10V0
PILCD10VCC
PILS101
PILS102
PIP101
PIP102
PIP201
PIP202
PIQ101
PIQ102
PIQ103
PIQ201
PIQ202
PIQ203
PIR101
PIR102
PIR201
PIR202
PIR203
PIR301
PIR302
PIR401
PIR402
PIR501
PIR502
PIRP101
PIRP102
PIRP103
PIRP104
PIRP105
PIRP106
PIRP107
PIRP108
PIRP109
PIS101
PIS102
PIS201 PIS202
PIS201 PIS202
PIS301 PIS302
PIS301 PIS302
PIS401 PIS402
PIS401 PIS402
PIS401 PIS402
PIS501 PIS502
PIS501 PIS502
PIS501 PIS502
PIU101
PIU102
PIU103
PIU104
PIU105
PIU106
PIU107
PIU108
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015
PIU1016
PIU1017
PIU1018
PIU1019
PIU1020
PIU1021
PIU1022
PIU1023
PIU1024
PIU1025
PIU1026
PIU1027
PIU1028
PIU1029
PIU1030
PIU1031
PIU1032
PIU1033
PIU1034
PIU1035
PIU1036
PIU1037
PIU1038
PIU1039
PIU1040
PIU201
PIU202
PIU203
PIU204
PIU205
PIU206
PIU207
PIU208
PIU209
PIU2010
PIU2011
PIU2012
PIU2013
PIU2014
PIU2015
PIU2016
PIY101
PIY102
PI780502
PIC201
PIC301
PIC402 PIC501 PIC602 PIC701
PIC801
PILCD10GND
PILCD10K
PILS102
PIP101
PIR101
PIR501
PIS201
PIS301
PIS401
PIS501
PIU1020
PIU205
PIU209
PIU2014
PIU2015
PI780501
PIC401 PIC502
PIP102
PIC102
PIR102
PIS101
PIU109
PIC202
PIU1018
PIY101
PIC302
PIU1019
PIY102
PIC802
PIU206
PILCD10D0
PIRP102
PIU1039
PILCD10D1
PIRP103
PIU1038
PILCD10D2
PIRP104
PIU1037
PILCD10D3
PIRP105
PIU1036
PILCD10D4
PIRP106
PIU1035
PILCD10D5
PIRP107
PIU1034
PILCD10D6
PIRP108
PIU1033
PILCD10D7
PIRP109
PIU1032
PILCD10E
PIU1023
PILCD10RS
PIU1021
PILCD10RW
PIU1022
PILCD10V0
PIR203
PILS101
PIQ101
PIP201
PIU208
PIP202
PIU207
PIQ102
PIR301
PIQ202
PIU202
PIQ203
PIR402
PIU203
PIR302
PIU1027
PIR401
PIR502
PIU204
PIU1024
PIU1025
PIU1026
PIU1028
PIU1029
PIU1030
PIU2010
PIU2013
PIS202
PIU101
NL
PIS302
PIU102
NL
PIS402
PIU103
NL
PIS502
PIU104
NL
PIS202
PIU105
NL
PIS302
PIU106
NL
PIS402
PIU107
NL
PIS502
PIU108
NL
PIU1010
NL
PIU1011
NL
PIU1012
NL
PIU1013
NL
PIS402
PIU1014
NL
PIU1015
NL
PIU1016
PIU2012
NL
PIU1017
PIU2011
NL
PI780503
PIC101
PIC601 PIC702
PILCD10A
PILCD10VCC
PIQ103
PIQ201
PIR201
PIR202
PIRP101
PIS102
PIU1031
PIU1040
PIU201
PIU2016
