Arduino nixie v41, Руководство по эксплуатации

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Connecting the tubes
When all the components are installed, you are now ready to install the tubes. Either you can wire then by
hand or you have a board to put them on. I prefer hand wiring, because I think it has a more “retro” feel.
The anodes are arranged like this:
Anode “1” Hours 10s
Anode “2” Hours
Anode “3” Minutes 10s
Anode “4” Minutes
Anode “5” Seconds 10s
Anode “6” Seconds
Anode “1” is the one next to the tiny “o” printed on the board next to the connector.
The cathodes are arranged like this:
Cathode “0” Digit 0
Cathode “1” Digit 1
Cathode “2” Digit 2
Cathode “3” Digit 3
Cathode “4” Digit 4
Cathode “5” Digit 5
Cathode “6” Digit 6
Cathode “7” Digit 7
Cathode “8” Digit 8
Cathode “9” Digit 9
Cathode “0” is next to the tiny “o” printed on the board next to the connector.
Side note: There are some tricks in the software to make the wiring and the PCB easy and logical. We use a
translation table in the software, and cross some of the standard channels to make the PCB more logical.
You can also see this on the “digit control” section of the schematic. This means that we are not using the
74141 “0” output to drive digit “0”, but instead we are using digit “2” of the 74141 to drive digit “0”.
In the code (available on GitHub), we see this:
// Used for special mappings of the 74141 -> digit (wiring aid)
// allows the board wiring to be much simpler<
int decodeDigit[16] = {2,3,7,6,4,5,1,0,9,8,10,10,10,10,10,10};
When we come in with a “0”, we decode this to “2” (the 0 th element of the array), and in fact, it is the “2”
output that is activated, but the wiring brings the “2” output to the “0” connection.
The cathodes to the tubes (the digits for each tube) need to be wired in parallel, “daisy chaining” them, so
that the run to the same digit of each tube.
The anodes run exactly one tube each.