1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2018/12/15 Sheet of
File: D:\资料\文章\超声波测距\超声波测距电路图\原理图.SchDocDrawn By:
22pF
C4
22pF
C5
1 2
Y1
XTAL
GND
0.1uF
C6
10K
R3
Res1
GND
VCC5V
EA/VPP
31
X1
19
X2
18
RESET
9
RD/P37
17
WR/P36
16
P32/INT0
12
P33/INT1
13
P34/T0
14
P35/T1
15
P10
1
P11
2
P12
3
P13
4
P14
5
P15
6
P16
7
P17
8
P00
39
P01
38
P02
37
P03
36
P04
35
P05
34
P06
33
P07
32
P20
21
P21
22
P22
23
P23
24
P24
25
P25
26
P26
27
P27
28
PSEN
29
ALE/PRDG
30
P31/TXD
11
P30/RXD
10
VCC
40
U1
AT89C51
VCC5V
DS1
LED1
1K
R1
Res1
GND
0.1uF
C2
GND
VCC5V
R2
RESVR
0.1uF
C3
GND
VCC5V
VCC5V
LCD_RS
GND
1
VCC
2
VO
3
RS
4
RW
5
E
6
DB0
7
DB1
8
DB2
9
DB3
10
DB4
11
DB5
12
DB6
13
DB7
14
BG+
15
BG-
16
1602
J1
LCD1602
LCD_RW
LCD_E
LCD_DB0
LCD_DB1
LCD_DB2
LCD_DB3
LCD_DB4
LCD_DB5
LCD_DB6
LCD_DB7
LCD_RS
LCD_RW
LCD_E
VCC5V
0.1uF
C1
GND
VCC5V
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
RP1
10k
VCC5V
VCC5V
LCD_DB0
LCD_DB1
LCD_DB2
LCD_DB3
LCD_DB4
LCD_DB5
LCD_DB6
LCD_DB7
1
2
3
J2
PWR2.5
0.1uF
C8
GND
C7
10uF/35V
VCC5V
更多51单片机资料请关注微信公众号：电子应用学习馆
VCC
1
trig
2
echo
3
out
4
GND
5
J3
超声波模块
VCC5V
0.1uF
C9
GND
GND
trig
echo
trig
echo
PIC101PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIC401 PIC402
COC4
PIC501 PIC502
COC5
PIC601PIC602
COC6
PIC701
PIC702
COC7
PIC801
PIC802
COC8
PIC901PIC902
COC9
PIDS101
PIDS102
CODS1
PIJ101 PIJ102 PIJ103 PIJ104 PIJ105 PIJ106 PIJ107 PIJ108 PIJ109
PIJ1010 PIJ1011 PIJ1012 PIJ1013 PIJ1014 PIJ1015 PIJ1016
COJ1
PIJ201
PIJ201APIJ201B
PIJ202
PIJ202APIJ202B
PIJ203
PIJ203APIJ203B
COJ2
PIJ301
PIJ302
PIJ303
PIJ304
PIJ305
COJ3
PIR101
PIR102
COR1
PIR201
PIR202
PIR203
COR2
PIR301
PIR302
COR3
PIRP101
PIRP102
PIRP103
PIRP104
PIRP105
PIRP106
PIRP107
PIRP108 PIRP109
PIRP1010
PIRP1011
PIRP1012
PIRP1013
PIRP1014
PIRP1015
PIRP1016
CORP1
PIU101
PIU102
PIU103
PIU104
PIU105
PIU106
PIU107
PIU108
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015
PIU1016
PIU1017
PIU1018
PIU1019
PIU1021
PIU1022
PIU1023
PIU1024
PIU1025
PIU1026
PIU1027
PIU1028
PIU1029
PIU1030
PIU1031
PIU1032
PIU1033
PIU1034
PIU1035
PIU1036
PIU1037
PIU1038
PIU1039
PIU1040
COU1
PIY101
PIY102
COY1
