Re: [smartsockets] Digest Number 118
> Another way to make them more cost effective is to make boards whichI think a 4 tube board would be a great idea, and I am sure they could be
> drive more than one tube. The next easiest would be a 2-tube socket,
> with one larger microcontroller driving both tubes. Alternatively a 4-
> tube display would also be more cost effective.
sold on eBay, as clock boards and kits there go for big dollars. As a kit is
no problem at all, let people put the pins in the board for the sockets
Even better, when rewriting the code for 4 tubes, also design the board with
an extra PIC or other processor on them so the design could be used to build
clocks and other devices with some programming smarts (which people here
could sell their ideas programmed into a PIC) on the same board. It could
either take serial in, or with a jumper (maybe) let a local processor drive
the device. I would buy one for sure.
- In thinking about this some more, I am going to do some experimenting
with shift registers to see if I can run 4 tubes independently.
The reason is that the Supertex HV5522 (and similar) have 32 outputs
A 4-tube board might consist of 2 HV5522's, a microcontroller and a
switched mode HV supply. The boards would then only require a 12V
supply and the data signal.
Need to test this out, but it could possibly made for less than it
costs to make 4 individual sockets. A 2-tube version sing a single
HV5522 could be a real possibility.
I will do some testing on this to see if I can get shift registers and
a micro to work together well enough to still provide independent
control of each digit.