zihatec ArduiBox MKR Series Construction Manual page 11

8.) Place and solder Diode D3 and D1
D3
(cathode)
Please Note: D1 has no polarity!
9.) Place and solder the electrolytic capacitors C1 and C2
(minus pole)
Construction manual ArduiBox MKR Rev B
C2
C1
(minus pole)
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