Arduino Nixie Clock v6, Руководство по эксплуатации

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“TICK LED” Circuit:
Parts List:
RTC RTC
SV4 CONN_RTC
R19 1k
Q6 2N7000
TICK LED LED 5mm
SV6 CONN_LED
SV2 CONN_FRONT
This step will check that the Micro-controller can talk to the RTC module, and that the time counting is
working properly.
Notes:
•
Q6 should be orientated with the flat side as shown on the board. Some FETs come with the leds in
a row rather than in a triange. If this is the case, bend the middle lead slightly so that it fits the
holes in the board (see hint).
•
The RTC module has two sets of contacts on it. You can use either the side with the pins on it or
wire up the other side with flying wires. If you use the side with pins, you should carefully remove
the two unused pins (see hint).
•
The LED must go with the right polarity. The + side has a flat on it, and has the shorter lead (see
hint).
The LED should be wired up with the longer lead to pin 4 of the CONN_FRONT (SV2) connector and the
shorter lead to pin 4 of the CONN_LED (SV3) connector.
Once you have populated the components, power on. The TICK LED should flash on and off slowly (on for 1
second, off for one second).
Hint: Trimming the extra pins on the RTC module
ONLY if you want to mount the RTC
module directly onto the main board (you
can also do it via flying leads), trim off the
pins “32K” and “SQW” using a pair of
precision side cutters.
If you want to mount using flying leads,
you can skip this step.
Hint: 2N7000 mounting
To mount the 2N7000 FET, bend the
middle lead back slightly. It will then fit in
the PCB without problems.
RTC Module with pins removed
2N7000