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Files

Schematic

Layout

3D View

C5
Capacitance
0.01uF
C6
Capacitance
0.01uF
C3
Capacitance
0.01uF
C4
Capacitance
22uF
C10
Capacitance
1uF
C2
Capacitance
22uF
C8
Capacitance
22uF
C1
Capacitance
0.01uF
USER
L2
Inductance
Inductance
LED_R
MCU_RST
REED
BOOT
TX
LED_R
LED_G
TX
MCU_RST
BOOT
SWDIO
RX
SDA
MCU_RST
BOOT
RX
SWCLK
LED_B
TX
LED_B
RX
+3V3
SWDIO
REED
LED_G
USER
SWCLK
SDA
SCL
SCL
LED1
SDA
BOOT
DIO
USER
SCL
BAT1
REED1
TX
RX
CLK
EN
R1
Resistance
470 Ω
C7
Capacitance
Capacitance
+3V3
VBAT
R6
Resistance
50 Ω
+3V3
+3V3
+3V3
Regular non-rechargeable AAA battery
Line 1
Line 1
L1
Not Recommended for New Designs
Inductance
2.2uH
R3
Resistance
135 Ω
PROG
C9
Capacitance
Capacitance
+3V3
R2
Resistance
100kΩ
R5
Resistance
50 Ω
R4
Resistance
50 Ω
U1
IC1
Y1

LoRa Door and Window Sensor Reference Design