Have you checked if the traces leaving from the barrel jack are wide enough for the expected current?
Adrian Godwin schrieb am Montag, 22. September 2025 um 21:02:23 UTC+2: > Also, put 100n capacitors between supply (5v or 3v3) and gnd near each and > every IC. > > > On Mon, Sep 22, 2025 at 8:00 PM Adrian Godwin <[email protected]> wrote: > >> Thanks for the pdf. Yes, the schematic wasn't usable. >> >> The first problem I've found is that SCLK and SDATA are connected to 3v3 >> and then have resistors in line. I'm pretty sure you had the right idea but >> made an error on the wiring, but if it's not obvious the resistors should >> be between 3v3 and the clk/data lines. >> >> You will likely need a pullup resistor on the light sensor., unless the >> Pi has one internally that can be enabled on analog inputs. They normally >> just measure voltages and you want to measure resistance. >> >> Overall, it's pretty good for a first try ! >> >> >> On Mon, Sep 22, 2025 at 7:48 PM Mac Doktor <[email protected]> wrote: >> >>> >>> On Sep 22, 2025, at 2:43 PM, Florian van der Dussen < >>> [email protected]> wrote: >>> >>> Current schematic: >>> >>> The schematic is too small to read. Please share a larger copy. >>> >>> >>> Terry Bowman, KA4HJH >>> "The Mac Doctor" >>> >>> https://www.astarcloseup.com >>> >>> "If only you could see what I've seen with your eyes."—Roy Batty, *Blade >>> Runner* >>> >>> -- >>> 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, visit >>> https://groups.google.com/d/msgid/neonixie-l/33D10011-0F75-49D6-81B7-8049459EDE45%40gmail.com >>> >>> <https://groups.google.com/d/msgid/neonixie-l/33D10011-0F75-49D6-81B7-8049459EDE45%40gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- 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, visit https://groups.google.com/d/msgid/neonixie-l/58c67414-cd96-4730-8aad-0d07666f4023n%40googlegroups.com.
