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