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

Pet Tracker Device 9dEx