50 lines
2.0 KiB
Markdown
50 lines
2.0 KiB
Markdown
nixie_tubes mod by Vanessa Ezekowitz
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This mod provides a set of classic Nixie tubes, and a set of alphanumeric
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15-segment tubes similar to Burroughs B-7971, controlled by Mesecons'
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Digilines mod.
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Simply place a tube, right-click it, and set a channel.
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Then send a character or one of several control words to that channel from a
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Mesecons Lua Controller and the tube will try to display it.
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The classic tubes are numeric with colon and period symbols, and hence will
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respond to the literal numbers 0-9, and the words "colon", "period", and
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"off". Any other symbol or word is ignored.
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The alphanumeric tubes respond to characters from the standard 7-bit ASCII
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character set, along with these messages:
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* "off", "colon" and "period" act the same as on the numeric tubes. Note that
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neither a colon nor a period actually look all that great on a 15-segment
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display, so use a classic tube for those, if you can.
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* "del" or character code 127 displays an all-on square, but without segment
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#15 (the bottom, chevron-shaped one).
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* "allon" or character code 128 will display an all-on square, with segment
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#15 lit also.
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* "cursor" or character code 129 will display just segment 15.
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Any unrecognized word or symbol outside the 32-129 range is ignored.
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The Decatron tubes respond to 0-9 and "off", same as the others, along with
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the following actions:
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* "inc" will increment the tube's current number value.
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If the value overflows from 9 back to 0, the tube will generate a "carry"
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message.
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* "dec" will decrement the current value.
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If the value wraps from 0 back to 9, the tube will send out a "borrow"
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message.
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* "get" will query the current state of the tube, responding with a single
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digit 0-9 or the word "off".
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Tubes emit a small amount of light when displaying something.
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Nixies can only be mounted on the floor, while Decatrons can be mounted on a
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wall (or a ceiling if so desired).
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A Decatron has a small grey spot on its internal insulator to mark the "0"
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position.
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