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A2开发板原理图

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4
GND
GND
AD1
502
AIN0
5
AIN0 6
AIN1 7
8
D3.3V NRF2401
GND
DAC1
AIN3
NTC1
GR1
1
2
1
2
1
2
LCD12864
A
VCC
AIN1
AIN2
R26
R27
10K
U15A
1
2
R31 51K
P21
R30 330R
DAC1
VCC
3
C32
104
100K
C4
104
R32
470R
R33 4.7K
LM358
VCC
502
VCC
RJ1
GND
GND
EEPROM模块
GND
VCC
GND
GND
DA1
五线四项步进电机
J3
8*8LED点阵模块
74HC595(串转并)模块
DS1302时钟模块
Led
P00
P01
P02
P03
P04
P05
P06
P07
DPe
DPf
DPg
DPh
J47
1
2
3
4
E0 VDD
E1 WE
E2 SCL
VSS SDA
VCC
8
7 GND
6 P21
5 P20
8
7
6
5
P36
P34
P35
VCC1 VCC2
SCLK X1
I/O
X2
CE
GND
VCC
1
2
3
4
C2
VCC
OE
GND
20pF
Y1
C3
32.768K
DS1302
1
2
3
J24
24C02
OE
P35
13
12
VCC
P36
10
11
P34
14
8
VCC
G
DP1
LED蓝
GND
P24
P25
P26
P27
AMS1117-3.3
2 D3.3V
OUT
4
OUT
D
1
G
IN
GND
VCC
VCC
独立按键模块
G1
G2A
G2B
15
14
13
12
11
10
9
7
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
C
GND
单片机核心
DIN5V
GND
D3.3V
1
2
3
VCC
RP7
1
2
3
4
5
6 10K
7
8
VCC
5
6
7
8
5
6
7
8
RP11
8
7
6
5
4
3
2
1
P10
P11
P12
P13
P14
P15
P16
P17
J20
10K
RP13 10K
4
3
2
1
4
3
2
1
8
7
6
5
4
3
2
1
P32
P33
P35
P36
P37
P10
P11
P12
P13
P14
P15
P16
P17
RST
P30 RXD
P31 TXD
P32
P33
P34
P35
P36
P37
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
GND 20
J29
RP15 10K
C12
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
P1.0
VCC
P1.1
P0.0
P1.2
P0.1
P1.3
P0.2
P1.4
P0.3
P1.5
P0.4
P1.6
P0.5
P1.7
P0.6
RST/VPD
P0.7
P3.0/RxD EA/Vpp
P3.1/TxDALE/PROG
P3.2/INT0
PSEN
P3.3/INT1
P2.7
P3.4/T0
P2.6
P3.5/T1
P2.5
P3.6/WR
P2.4
P3.7/RD
P2.3
XTAL2
P2.2
XTAL1
P2.1
GND
P2.0
C10
104
VCC
P00
LCD_D0
P01
LCD_D1
P02
LCD_D2
P03
LCD_D3
P04
LCD_D4
P05
LCD_D5
P06
LCD_D6
P07
LCD_D7
R7 VCC
4.7K
VCC
J22
1
2
3
4
5
6
7
8
5
6
7
8
5
6
7
8
VCC
J25
P27
P26
P25
P24
P23
P22
P21
P20
LCD_EN
LCD_RS
LCD_WR
1
2
3
4
5
6
7
8
5
6
7
8
5
6
7
8
K3
动态数码管模块
K4
P31
P30
P32
P33
GND
CPU1
K2
RP8
10K
4
3
2
1
4
3
2
1
P00
P01
P02
P03
P04
P05
P06
P07
LED8
矩阵按键模块
S1
P20
P21
P22
P23
P24
P25
P26
P27
S2
S3
Y2
12MHz
GND
GND
C13
RSTK1
33P
C14
RST
VCC
R9
10k
10uf
f
e
P17
P16
P15
P14
P13
P12
P11
P10
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
P00
P01
P02
P03
P04
P05
P06
P07
GND
VCC
2
3
4
5
6
7
8
9
19
1
3
A0
A1
A2
A3
A4
A5
A6
A7
B0
B1
B2
B3
B4
B5
B6
B7
OE VCC
DIR GND
18
17
16
15
14
13
12
11
4
3
2
1
4
3
2
1
RP3 100R
5
6
7
8
5
6
7
8
e
LED5
LED4
SMG2
COM
a
COM
a
g
d
b f
c
dp
e
g
d
b f
c
e
LED3
g
d
dp
COM
a
b
f
c
e
dp
g
d
b f
c
e
dp
LED2
LED1
COM
a
COM
a
g
d
b f
c
dp
e
g
d
COM
a
b f
c
dp
Title
Size
Number
Revision
A2
5
e
g
d
b
c
dp
D
GND
Date:
File:
4
c
LED6
COM
a
RP4 100R
VCC
20
10
74HC245
GND
2
d
dp
U4
S5
b f
g
S4
RP16 10K
紧锁座
COM
a
RP12 10K
RP14 10K
4
3
2
1
4
3
2
1
LED7
SMG1
6
RXD
TXD
K1
33P
1
6
4
5
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
8
2
4
P3
C15
104
A
B
C
9
1
3
DC5V-->3.3V电源模块
U9
P22 1
P23 2
P24 3
8
P5
GND
DIN5V 3
P32
GND
RXD-U
TXD-U
+CP1 CC1
22uf 104
U5
BEEP
Q5
b 2TY
B
470R
USB1
D5V
R18 27RDD+
R19 27R
3
2
1
74HC138
CH340G
1
2
3
4
5
74HC138译码器
VCC GND
IR1
Vdd
Vss
OUT
HS0038
VCC
R1
100R BZ1
B
c
16
15
14
13
12
11
10
9
8
7
6
5
DPd
DPc
DPb
DPa
16
15
14
13
12
D+
D-
VCC
R232
RTS#
DTR#
DCD#
RI#
DSR#
CTS#
471
P20
P21
P22
P23
18
17
LED点阵
12
CV1
103
GND
TXD
RXD
V3
UD+
UDXI
XO
D8
D6
R20
CC2
104
D5V
RQ1
D7
RP10
1 471
2
3
4
D5
8
7
6
5
ec
1
2
3
4
5
6
7
8
D4
RP9
e
U11
D3
VCC
473
R23
GND
330R
GND
1
2
3
4
D2
DPa
DPb
DPc
DPd
DPe
DPf
DPg
DPh
12
11
10
9
8
7
6
5
4
3
2
1
VCC
J12
D1
R17
102
Q3
红外接收模块
GND
I/O
VCC
D
DS18B20
GND
15
1
2
3
4
5
6
7
9
VCC
1
2
3
DIN5VS
蜂鸣器
P37
POWER1
LED模块
D5V
GND
SER
16
16
USB转TTL下载模块
DV1
QA
QB
QC
QD
QE
QF
QG
QH
QH'
SRCLR
SRCLK
GND
ULN2003D
RXD-U
TXD-U
VCC
20pF
VCC
GND
C
OE
RCLK
a
b
c
d
e
f
g
dp
9
U1
U3
6
COM
OUT1
OUT2
OUT3
OUT4
BEEP
8
GND
16
15
14
13
12
11
10
9
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
a
b
c
d
e
f
g
dp
8
IN1
IN2
IN3
IN4
IN5
IN6
IN7
U6
11
7
4
2
1
10
5
3
B
1
2
3
4
5
6
7
1
2
3
4
5
VCC
P10
P11
P12
P13
P15
VCC
OUT1
OUT2
OUT3
OUT4
GND
U14
VCC
GND
470R P17
470R P12
VCC
J52
11
7
4
2
1
10
5
3
470R
R14
R16
AUX
VBAT
GND
Y-
LCD 1602
104
R29 470R
LCD_RS
LCD_WR
LCD_EN
P00
P01
P02
P03
P04
P05
P06
P07
P32
P33
VCC
IRQ MISO
MOSI SCK
CSN
CE
VCC GND
BUSY
DIN
CS
DCLK
C29
LCD9648/LCD12864
LCD1602
GND
VCC
P2
J2
VO
LCD_RS
LCD_WR
LCD_EN
LCD_D0
LCD_D1
LCD_D2
LCD_D3
LCD_D4
LCD_D5
LCD_D6
LCD_D7
8
7
6
5
LCD1602接口
8
RP25
DOUT
PENIRQ
IOVDD
VREF
1
2
3
4
R28 470R
AIN3
AIN2
6
GND
VCC
VO
RS
RW
E
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
BG VCC
BG GND
16
15
14
13
DAC(PWM)模块
U8
ET2046
12
11
10
9
VCC
X+
Y+
X-
A
P16
P14
P11
P13
1
P34 2
P35 3
P36 4
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ADC模块
VCC
P37
NRF24L01接口
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
4
1
2019/4/15
C:\Users\..\Sheet1.SchDoc
Sheet of
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