For the general driving of shift registers - take a look at the Arduino ShiftOut function (https://www.arduino.cc/reference/en/language/functions/advanced-io/shiftout/) - this shifts out 8 bits at a time - you can modify the code in the ShiftOut function to work with 16,32,64 bits etc. You just need the three pins that you have already identified. A step up from that is to use SPI transfer - which works like shiftout but instead - the processor handles the transfer. Please check the suitability of this device for nixes - the spec seems to suggest that it will sink or drive 1mA and I believe that the ZM1080 has a 2mA cathode current. I usually use HV5522 or HV5622 which handle the current and are easy to drive via ShiftOut or SPI.transfer commands. They also support a blanking signal which can be used to vary tube brightness. - RIchard
On Thursday, 3 November 2022 at 21:45:03 UTC scipa...@gmail.com wrote: > Hi, as my final Masters Degree thesis in Microelectronics I decided to > create portable/small form-factor nixie tube clock using ZM1082T. Whole > project is circled around modern connectivity, so I am using USB type-c for > programing and powering plus Wi-Fi connectivity and all that. So simply > put, I designed my own PCB, which is thing I do and it's fine, but besides > some pinout and footprint miss-steps, everything about that is fine, all my > features (temp, buzzer, RGB Neopixel backlight, Wi-Fi, USB-C powering and > programing, protections, RTC) are working flawlessly. My problem is, I am > not a programmer, and all the features mentioned above were tested using > example libraries and that's fine for having something from which I can > kick-off and create final whole code, but with HV528 it's different story. > In this whole Group there is not much about using push-pull configuration > HV chips from microchip (which, believe me, if I could, I wouldn't have > chosen this chip, but chip shortage, availability, money, my country > shipping, etc..... that's why and this is what I got). With poor datasheet > details from microchip, POL and BP pins are for me quite a mystery and when > creating schematic and PCB I left BP open and POL with LE, CLK, DIN were > connected to ESP (on SPI pins, POL and LE to GPIO). which should be fine > based on my reasearch, but for the love of god, I can't seem to figure out > to test it, and control it. Only thing I could manage was that all cathodes > were glowing :D. But basically I am too lazy and time limited to create > some code "now" to test it. I was hoping for some libraries and examples or > some simple shift registers examples, which could be transferred to this, > but no luck. > > So if anyone, is interested in this "problem" and shows some interest, I > am willing to show more, fotos, schematics, but for now, I don't want to > post anything (our school algorithms would thing I copied from here and I > would be flagged for plagiarism, stupid, I know, but no point in risking > it...). So thanks everyone for any comment. > Looking forward to interesting conversations. > > PS: probably to catch your interest, here are some unrendered 3D models > from Altium. > -- 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 neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/d268f344-ee32-4fb1-80b6-6e8c2bac405en%40googlegroups.com.
