Schematics
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A A
Title
Number RevisionSize
C
Date: 4/26/2021 Sheet of
File: D:\2021\..\Zephyr RevE.SchDoc Drawn By:
D_P
D_N
90 ohms Digital Pair
50 ohm 2.4GHz
VLi-Ion
vbat_adc3.3V
VLi-Ion
3.3V
I2C_SDA
I2C_CLK
VLi-Ion
ANT
LED1
SML-LX0201NWD-TR
OUT0
1
OUT1
2
OUT2
3
OUT3
4
OUT4
5
OUT5
6
OUT6
7
OUT7
8
OUT8
9
OUT9
10
OUT10
11
OUT11
12
OUT12
13
OUT13
14
OUT14
15
OUT15
16
OUT16
17
OUT17
18
OUT18
19
OUT19
20
OUT20
21
OUT21
22
OUT22
23
OUT23
24
ADDR0
25
VCC
27
SDA
28
SCL
29
EN
30
IREF
31
VCAP
32
PAD
PAD
ADDR1
26
U5
LP5024RSMR
LED_DRV_EN
VLi-Ion
VLi-Ion
I2C_SDA
I2C_CLK
Vdd_IO
1
SCL/SPC
2
RSV
3
SDA/SDI
4
SDO/SA0
5
CS
6
INT_DRDY
7
GND
8
GND
9
VDD
10
U4
LPS35HWTR
C16
4.7uF/6.3V
PRESS_IRQ_1
PRESS_IRQ_2
3.3V
3.3V 3.3V
3.3V
3.3V
I2C_SDA
I2C_CLK
I2C_SDA
I2C_CLK
1
2
3
ANT1
ANT2012LL13R2400A
VLi-Ion
Haptic_PWM
C29
10uF/16V
C18
0.1uF
R9
100K
C15
4.7uF/6.3V
C17
0.1uF
R8
100K
R10 100K
D1
NSR0620P2T5G
D2
NSR0620P2T5G
D
G
S
Q1
RV2C010UNT2L
IN +
1
IN -
2
M1
MOTOR SZJK 20150708100
VCC
1
D-
2
D+
3
ID
4
GND
5
SHIELD
6
SHIELD
7
J1
USB 1051330011
C33
1uF/10V
C34
22uF/6.3V
R14
422K
R16
160K
C40
1uF/10V
C26
0.1uF
C24
1uF/10V
LED2
SML-LX0201NWD-TR
LED3
SML-LX0201NWD-TR
LED4
SML-LX0201NWD-TR
LED5
SML-LX0201NWD-TR
LED6
SML-LX0201NWD-TR
LED7
SML-LX0201NWD-TR
LED8
SML-LX0201NWD-TR
LED9
SML-LX0201NWD-TR
LED10
SML-LX0201NWD-TR
LED11
SML-LX0201NWD-TR
LED12
SML-LX0201NWD-TR
R15
68K
R4
10K
R5
10K
C14
DNP
R6
0 Ohm
C13
DNP
C30
1uF/10V
1
2
DNP
J3
1X2 HEADER
LED13
SML-LX0201NWD-TR
LED14
SML-LX0201NWD-TR
SDO/SA0
1
SDx
2
SCx
3
INT1
4
VDDIO
5
GND
6
GND
7
VDD
8
INT2
9
OCS_AUx
10
SDO_AUx
11
CS
12
SCL
13
SDA
14
U9
LSM6DSOXTR
C41
0.1uF
3.3V
ICM_MISO
ICM_INT1
ICM_MOSI
ICM_CLK
ICM_CS
C28
0.1uF
3.3V
ICM_INT2
1 2
2'1'
SW1
EVQ-P7C01P
C42 1nF
R23
100K
3.3V
BUTTON#
Vdd_IO
1
SCL/SPC
2
RSV
3
SDA/SDI
4
SDO/SA0
5
CS
6
INT_DRDY
7
GND
8
GND
9
VDD
10
U3
LPS35HWTR
C45
.01uF/25V
C43
100pF/50V
OUT
1
GND
2
EN
3
IN
4
EPAD
5
U1
NCP167BMX330TBG
PSRAM
3.3V
3.3V
3.3V
3.3V
RESET
TXD
RXD
GPIO17
GPIO17
CLK
CLK
BUTTON#
LNA_IN
GPIO10
GPIO10
GPIO7
GPIO7
GPIO11
GPIO11
GPIO8
GPIO8
VDDSDIO
VDDSDIO
USB TO SERIAL CONVERTER
5
34
Q2A
MUN5214DW1T1G
2
6 1
Q2B
MUN5214DW1T1G
3.3V
RESET
RESET
TXD
RTS
DTR
RXD
3V
#RST
9
#SUSPEND
15
CTS
18
D+
3
D-
4
DCD
24
DSR
22
DTR
23
GND
2
GPIO0/TXLED
14
GPIO1/RXLED
13
GPIO2
12
GPIO3
11
NC
10
REGIN
7
RI
1
RTS
19
RXD
20
SUSPEND
17
TXD
21
VBUS
8
VDD
6
VIO
5
VPP
16
TP
THERM
CP2104
USB/UART BRIDGE
VIO: 1.8-VDD
Op. Temp: -40~85°C
#
RS
T
#
S
U
S
P
E
N
ENE
D
CT
S
D
+
D
-
D
CD
D
S
R
D
T
R
G
N
D
G
P
IO
0
/
T
X
L
E
D
G
P
IO
1
/
RX
L
E
D
G
P
IO
2
G
P
IO
3
N
C
RE
G
IN
RI
R
T
RTR
S
RX
D
S
U
S
P
E
N
ENE
D
T
X
D
V
BU
S
V
D
D
V
IO
V
P
P
T
P
CP
2
1
0
4
U
S
B/
U
B/UB/
A
R
T
RTR
BRID
G
E
V
IO
:
1
.
8
-V
D
D
O
p
.
T
e
TeT
m
p
mpm
:
-4
0
~8
5
°
C
T
C
T
p
p
U2
CP2104
C2
0.1uF
R1
10K
DTR
RTS
CE
1
SIO3
7
GND
4
SIO0
5
SCLK
6
SIO1
2
SIO2
3
VCC
8
CE
S
IO
3
G
N
D
S
IO
0
S
CL
K
S
IO
1
S
IO
2
V
CC
U7
LY68L6400SLIT
C1
0.1uF
C4
0.1uF
C3
0.1uF
VDDA_3
46
CAP2_NC
47
CAP1_NC
48
VDDA
1
LNA_IN
2
SENSOR_CAPN
7
IO34
10
VDDA3P3_1
3
IO26
15
IO27
16
IO14
17
IO12
18
VDD3P3_RTC
19
IO13
20
IO15
21
IO2
22
SD3
29
IO16
25
VDD_SDIO_NC
26
IO5
34
IO18
35
IO23
36
VDD3P3_CPU
37
IO19
38
IO22
39
U0RXD
40
U0TXD
41
IO21
42
VDDA_2
43
XTAL_N_NC
44
XTAL_P_NC
45
CMD
30
VDDA_3P3
4
SENSOR_VP
5
SENSOR_CAPP
6
EN
9
IO35
11
IO25
14
CLK
31
SD0
32
SD1
33
SENSOR_VN
8
IO17
27
SD2
28
IO32
12
IO33
13
IO0
23
IO4
24
GNDPAD
EXP
V
D
D
A
DAD
_
3
C
A
P
APA
2
_
N
C
C
A
P
APA
1
_
N
C
V
D
D
A
L
N
LNL
A
_
IN
S
E
N
ENE
S
O
R_
CA
P
N
PNP
IO
3
4
V
D
D
A
3
P
3
_
1
I
O
2
6
I
O
2
7
I
O
1
4
I
O
1
2
V
D
D
DDD
3
P
3
_
R
T
RTR
C
I
O
1
3
I
O
1
5
I
O
2
S
D
3
IO
1
6
V
D
D
_
S
D
IO
_
N
C
IO
5
IO
1
8
IO
2
3
V
D
VDV
D
3
P
3
_
C
P
U
I
O
1
9
I
O
2
2
U
0
R
X
RXR
D
U
0
T
X
D
I
O
2
1
V
D
D
A
DAD
_
2
X
T
XTX
A
TAT
L
_
N
_
N
C
X
T
A
TAT
L
ALA
_
P
_
N
C
CM
D
V
D
D
A
_
3
P
3
S
E
N
ENE
S
O
R_
V
R_VR_
P
S
E
N
ENE
S
O
R_
CA
P
P
E
N
ENE
IO
3
5
I
O
2
5
CL
K
S
D
0
S
D
1
S
E
N
ENE
S
O
R_
V
R_VR_
N
IO
1
7
S
D
2
IO
3
2
I
O
3
3
I
O
0
I
O
4
G
N
D
P
A
PAP
D
U10
ESP32-PICO-D4
C5
10uF/6.3V
ICM_INT1
ICM_INT2
ICM_MOSI
ICM_CLK
ICM_CS
ICM_MISO
PRESS_IRQ_1
PRESS_IRQ_2
Haptic_PWM
LED_DRV_EN
vbat_adc
VBUS_nRF
D_P
D_N
I2C_SDA
I2C_CLK
GPIO0
C6
10uF/6.3V
VBUS_nRF
VBUS_nRF
C7
10uF/6.3V
R3
10K
DNP
CHARGE
SML-LX0201NWD-TR
DNP
R7
2K
D
G
S
Q3
LP0404N3T5G
STAT
1
VSS
2
VBAT
3
VDD
4
PROG
5
MCP73831/2
LIPO Charger
VDD:
Temp:
3.75-6V
-40-85°C
TP4065-4.2V-SOT25-R
U6
MCP73831T-2ACI/OT
R2 100K
VLi-Ion
Alt_Value:
D3
SD103AWS-TP
R11
10K
SENSOR_VP
R12
10K
VBUS_nRF