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Schematic

Layout

Preview

U2
U1
GPS_RX
VUSB
VBAT
3V3
SIM_RST
R7
Resistance
1KΩ
STM_RST
SWCLK
VBAT
VUSB
3V3
GPS_TX
SIM_TX
R3
Resistance
22 Ω
SIM_RX
SIM_RST
SCL
R8
Resistance
10KΩ
GPS_RX
3V3
3V3
3V3
SWCLK
3V3
SIM_TX
3V3
VBAT
VUSB
R4
Resistance
5KΩ
STM_RST
R2
Resistance
1KΩ
R6
Resistance
2KΩ
SDA
SWDIO
R5
Resistance
5KΩ
SWDIO
SDA
VBAT
SCL
R1
Resistance
1KΩ
GPS_TX
SIM_RX
P4
C3
Capacitance
4.7uF
L1
Inductance
22uH
J1
C2
Capacitance
10uF
J3
D1
C1
Capacitance
10uF
P3
C4
Capacitance
4.7uF
C5
Capacitance
1uF
U5
U3
LED2
J4
LED1
BT1
J2
U4
IC1

Pet Tracker Device