On Friday, February 5, 2021 at 6:26:36 AM UTC-5 Ian Sparkes wrote: > So, it started like this: I liked the Zirffa style Chinese boards - I > thought the hardware was pretty good, but the firmware was really > primitive. I was going to set about re-writing the firmware for these > boards, but them came up with the idea of simply taking the hardware > approach and using my existing firmware on it. > I have two Zirffa style boards. One for IN-12's and the other for IN-14's. I agree that while the hardware is pretty good (more details follow) the firmware is really primitive.
The IN-12 hardware is wonky in that if a digit is blanked, or the whole clock is off in night mode, there is a parasitic glow from various elements. As such, I have to leave all digits powered at all times. Also, I find it will drift a second or two over a week. Meanwhile I have an IN-14 board that I use with Rodan Gr-111Pa tubes. I replaced the anode resistors with 18K to give the tubes the needed 2mA to drive them properly. That board firmware is also primitive but I am stunned at the accuracy of the clock chip. It runs for weeks and stays on the second. No idea why that board should be so accurate. When the clock turns itself off at 10 PM, there is no parasitic glow. It is a shame the firmware on those boards is locked down. The hardware had such potential. -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/8b4c0bdb-c30c-4271-827c-eae998d94a7cn%40googlegroups.com.
