> I'm planning on building and possibly selling a micro nixie controller board. > The idea is to create the smallest possible Nixie controller board that can > drive 6 Nixies (3x2 multiplexing). > > I am posting this to see if the feature set of the board makes sense, or if I > am missing anything.
Looks fairly well thought out to me, I just have a few thoughts: The 0-80 screw holes are pretty tiny, even if takes more room, perhaps 2-56 might be more reasonable. I noticed the connectors are 2mm pitch, but the hole positions are given in inches. Just an observation - if it were my board, the connectors would be 0.1" pitch but the holes would be hard millimeter positions. Of course, you could go with metric screws too - M1 would be similar size to the 0-80, or M2 would be larger (similar to 1-64). I'm a fan of bipolar neon colons, so the glow hops back and forth between electrodes every second or half second - that takes a couple of extra transistors. What do the switch inputs return to, +5 or ground? Is there an on-board pullup or pulldown? Will they need to be debounced? What sort of input is expected for temperature? Just 10mV/degree C or somesuch? A dedicated high voltage shutdown input might be nice. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/BD5614A1-B55E-41AE-8EF8-97324A408B3F%40mac.com?hl=en-GB. For more options, visit https://groups.google.com/groups/opt_out.
