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Find schematic issues

J3
R5
Resistance
5.1kΩ
R7
Resistance
1kΩ
R4
Resistance
5.1kΩ
R6
Resistance
1kΩ
Vin (external)
5V
IO21
5V
D -
D +
Capacitance
10uF
LED2
C3
Capacitance
10uF
LED1
D2

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