1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2021/10/14 Sheet of
File: E:\桌面映射\..\原理图.SchDoc Drawn By:
GND
1
VCC
2
SCL
3
SDA
4
U4
OLED1.3
2
1
3
5
6
4
S1
KET 8X8
2 1
3
J1
POWER
GND
VCC
GND
D3
1N4007
A0
A1
VCC
GND
GND
A0
A1
R2
1K
LED1
LED-5MM
GND
B12
1
B13
2
B14
3
B15
4
A8
5
A9/TXD1
6
A10/RXD1
7
A11
8
A12
9
A15.
10
B3.
11
B4.
12
B5.
13
B6
14
B7
15
B8
16
B9
17
5V
18
GND
19
3.3V
20
VB
21
C13
22
C14
23
C15
24
A0
25
A1
26
A2/TXD2
27
A3/RXD2
28
.A4
29
.A5
30
A6
31
A7
32
B0
33
B1
34
.B10/TXD3
35
.B11/RXD3
36
RST
37
3.3V
38
GND
39
GND
40
U3
STM32F103C8T6
VCC
GND
B11
B10
A10
A9
B4
B3
GND
1
2
JP2 GND
D1
1N4007
VCC
B3 B4
B12
B13
B14
B15
A4
SW1
R6
10K
R3
10K
R4
10K
R5
10K
SW2
SW3
SW4
GND
B12
B13
B14
B15
SW5 SW6
GND GND
R7
10K
R8
10K
VIN5-12V
1
TXD
3
GND
2
RXD
4
PEN
5
NET
6
DTR
7
U5
SIM800C
C6
104pf
GND
3.3V3.3V
3.3V
GND
GND
L1
100uH
VCC2
1
X1
2
X2
3
GND
4
CE
5
I/O
6
SCLK
7
VCC1
8
U6
DS1302
12
BT1
CR2032
BUSY
1
RX
2
TX
3
DACR
4
DACL
5
SPK1
6
SPK2
7
VCC
8
IO5
9
IO4
10
IO3
11
IO2
12
IO1
13
GND
14
DP
15
DM
16
U1
BY-8001
1
2
JP1
D2
1N4007
VCC
GND
GND
R1
10K
3.3V
3.3V
3.3V
R10
10K
GND
X1
XTAL
VCC
GND
R11
10K
R12
10K
VCC
1
RX
2
TX
3
GND
4
GND
5
SDA
6
SCL
7
VCC
8
U2
JY-61
GND
VCC
A4
B7
B8
B9
B7
B8
B9
B11
B10
A10
A9
GND
+
C4
10uf
C7
1000uf
C8
470uf
C2
1000uf
C1
470uf
C3
470uf
+
C5
10uf
GND
R9
1K
R13
1K
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