TXD
SDA
SCL
B+
A0
B-
RXD
R6
Resistance
10kΩ
R14
Resistance
1kΩ
R4
Resistance
470 Ω
R7
Resistance
10kΩ
R5
Resistance
470 Ω
R15
Resistance
100 Ω
R16
Resistance
180kΩ
C8
Capacitance
.1uF
Flash
C5
Capacitance
10uF
LED2
U5
LED1
C1
Capacitance
0.1uF
U3
C6
Capacitance
10uF
J1
D2
SW1
U4
D1
R9
Resistance
1kΩ
R13
Resistance
1.2kΩ
R10
Resistance
1kΩ
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