1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Title
Number RevisionSize
A3
Date: 12/07/2022 Sheet of
File: C:\Users\..\MCU.SchDoc Drawn By:
TEMP
1
RPOG
2
GND
3
VCC
4
CE
8
CHRG
6
STDBY
7
BAT
5
U5
TP4056
+5V
C31
10uF/25V
R35
10K
C29
10uF/25V
R36
1K
VCC
GND
B1
VBUS
B4
CC
B5
D+
B6
D-
B7
RFU1
B8
GND
A1
VBUS
A4
CC
A5
D+
A6
D-
A7
RFU1
A8
B12B9 A9A12
A1 A4 B4B1
P10
TYPE-C
D-
D+
R41
5.1K
R38
5.1K
C32
10uF/25V
+5V
R37
10K
D1
RED
US2_RXD
US2_TXD
PC14
PC15
CLK_SEL
PWDN/RESET
START
SPI1_SCLK
SPI1_MOSI
SPI1_NSS
SPI1_MISO
ADC_DRDY
1
2
3
4
5
6
SWD1
Header 6
SWDIO
SWCLK
NRST
UD+
1
UD-
2
GND
3
R T S#
4
VCC
5
TXD
6
RXD
7
V3
8
U6
CH340N
C34
100nF
D+
D-
RXD
TXD
US1_TXD
US1_RXD
+5V
SWO
DGND
DGND
DGND
DGND
DGND
DGND
1
2
3
P9
Header 3
1 3
2
K1
SW-1P2T-2.0
34
1
R
G
2
L D1
C36
1uF/50V
VCC
C37
1uF/50V
DGND
VDD
VIN
1
GND
2
EN
3
VOUT
5
NC
4
U8
LD50X
DGND
C33
10uF/25V
C30
100nF
DGND
1
2
3
4
5
6
7
8
9
10
11
12
P11
Header 12
DGND
DGND
DGND
V-
S1
S2
D
VDD
VSS
U7
DW06D
R40
1K
R39
100R
BT1
14500 3.7V Li-ion
C35
100nF/50V
GND
DGND
1
VDD
2
DGND
3
VDD
4
DGND
5
SWO
6
DGND
7
SWCLK
8
NRST
9
SWDIO
10
US2_TXD
11
US1_TXD
12
US2_RXD
13
US1_RXD
14
DGND
15
DVDD_EN
16
XTAL_EN
17
AVDD_EN
18
DOUT
19
GPIO1
20
CS
21
GPIO2
22
DIN
23
START
24
SCLK
25
PWDN/RST
26
DRDY
28
CLK_SEL
27
U9
STM32G070RBTX (X4621FVS-2x07-C43D65*2)
VDD
VDD
CLK_SEL
PWDN/RESET
START
XTAL_EN
SPI1_SCLK
SPI1_MOSI
SPI1_NSS
SPI1_MISO
ADC_DRDY
PC14
PC15
C38
10uF/25V
R42 499R
R43 499R
R44 499R
R45 499R
US1_TXD
US1_RXD
US2_RXD
US2_TXD
PC12
PC10
US2_TXD
1
US2_RXD
2
NC
3
NC
4
NC
5
NC
6
VDD
7
GND
8
U10
FIDC2706(08JQ-BT)
C39
10uF/25V
VDDDGND
DGND
DGND
D
S
G
T1
NCE3416
R60
1K
C63
10nF
C62
100nF/50V
VDD
1
2
3
4
5
6
7
8
9
10
11
12
P24
Header 12
DGND