Arduino Nixie Clock v6, Руководство по эксплуатации

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Low Voltage Circuit:
Parts List:
D1 IN4001
C2 100nF
IC1 7805TV
C9 100uF
R8 2.7k
LED1 LED3MM
SV1 CONN_POWER
The Low Voltage circuit is a very traditional voltage regulator using a linear regulator. It's job is to reduce
the external voltage from the power adapter down to a known and stable 5V to drive the micro-controller.
Put the parts on the board in the marked locations in the order they appear on the list.
Notes:
•
D1 and D2 look very similar, but have different jobs to do. Be careful to get the 1N4001 and not the
UF4004.
•
D1 should be placed so that the white stripe on the body lines up with the white stripe on the
board.
•
C9 must go the right way round. The negative side is marked with a stripe.
•
The LED must go with the right polarity. The + side has a flat on it, and has the shorter lead.
•
Put IC1 so that the metal tab lines up with the white stripe on the board. The metal side faces to
the
outside of the board.
Once all the components are on the board, hook up the power, and check that the LED comes on. Check
also that the voltage is 5V between the “GND” test point and the “VCC” test point.