On 05/01/2013, at 00.03, Tim wrote: > > This is a fare point, 0 - 99 would be allot nicer, I wonder if I should just > bite the bullet and use an IO port expander IC on the nixie display PCB I > dont think I have enough room spare on the PCB to implement the latches > unless I can do it with one IC (do you have any that come to mind?). This > would solve all my problems in one go if I can find/make the space for it. I > will have a look to see if I can squeeze a SM package onto the PCB in the > remaining limited space. > > I do like the IN-13 but am sadly too far into the design to make use of one. > I do however have a second project on the go which is an audio spectrum > analyser using IN-9 's :o) I just wish I had more spare time on my hands to > spend more time on my many projects.
Use a PCB5874 - I2C port expander with 8 bits, use that to control the 2 74141's. You CANNOT blank the nixies with the 74141's you need to use anode transistor or disable the PSU. The PCF8574 sits on the same bus as your RTC - Easy! // Per. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
