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NOTES.md

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Notes

  1. Controller weirdness when handling of PINs greater than 999999

    • Between 1000000 and 1048576 PIN is set to 0
    • Seems to just drop the most signicant nibble when the PIN >= 1048577
    • 999999 => 0x0F423F (stored as 0x000000)
    • 1000000 => 0x0F4240 (stored as 0x000000)
    • 1000001 => 0x0F4241 (stored as 0x000000)
    • 1048576 => 0x100000 (stored as 0x000000)
    • 1048577 => 0x100001 (stored as 0x000001)
    • 1999999 => 0x1E847F (stored as 0x0E847F)
    • probably just short-circuited byte-by-byte (nibble-by-nibble ?) equals
    • or maybe just masks out the most significant nibble ?

  2. https://blog.cloudflare.com/everything-you-ever-wanted-to-know-about-udp-sockets-but-were-afraid-to-ask-part-1

  3. https://stackoverflow.com/questions/54360408/docker-container-udp-communication-with-other-hosts