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Re: More on wifi range - Pi PICO W Oil level sensor

Date 2025-12-13 01:19 -0500
Subject Re: More on wifi range - Pi PICO W Oil level sensor
Newsgroups comp.sys.raspberry-pi, comp.os.linux.misc
References (12 earlier) <3bor0mxr8h.ln2@Telcontar.valinor> <10hgqju$2r3rh$1@dont-email.me> <mq29n8Fkbm0U1@mid.individual.net> <10hgtem$2r3rh$8@dont-email.me> <mq2dc2FktbjU2@mid.individual.net>
From c186282 <c186282@nnada.net>
Organization wokiesux
Message-ID <Gp2cnVMsbIP3mKD0nZ2dnZfqn_ednZ2d@giganews.com> (permalink)

Cross-posted to 2 groups.

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On 12/12/25 06:41, Andy Burns wrote:
> The Natural Philosopher wrote:
> 
>> Well the daemon runs under xinetd...for sheer laziness. I guess I 
>> could make it UDP.
>>
>> But I don't know what problem that would solve.
> 
> The data would arrive if a single packet got through the fog, whereas 
> with tcp at least dour packets on sequence need to make it (or get 
> retried) with UDP you could afford to spray each packet half a dozen 
> times and if one of them makes it, you're good ...

   I once made a bi-directional client/server setup,
   first Python, then 'C'. One variant was TCP, the
   other UDP. Probably could have used a config file
   or defs ... but I never got to it.

   On a clean LAN, both worked perfectly. However
   with some outdoor devices (Pi2 + wifi dongle as
   best I recall) both approaches had issues kind
   of similar to what you described.

   TCP, while "error resistant", was often VERY iffy.
   UDP - well - easier/smaller to send. You could
   scan each packet for obvious errors and, if a
   fail, could ask for it again or just let the
   pgm work around to sending that data again.

   For almost all modern apps, TCP is best by far.
   However iffy situations CAN still exist, so
   UDP you add some IQ to MIGHT be better.

   As I've said elsewhere, wifi can sometimes be
   black magic. Weird RF shadows and multipaths
   can be anywhere and it's very hard to tell
   what's perfect placement.

   Hmm ... apparently CANbus can be sent over
   wifi - but you lose some error-checking so
   there's no gain. There are various dongles
   for lower-freq data transmission too, but
   never got around to trying them. Fidelity
   might be worth losing some speed.

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Thread

More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-09 10:47 +0000
  Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-09 11:57 +0000
    Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-09 14:07 +0000
      Re: More on wifi range - Pi PICO W Oil level sensor Rich <rich@example.invalid> - 2025-12-09 19:14 +0000
        Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-09 19:17 +0000
    Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-09 21:19 -0500
      Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-10 05:18 +0000
        Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 00:27 -0500
          Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-10 05:38 +0000
            Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 02:13 -0500
              Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-10 08:12 +0000
              Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-10 08:15 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 03:56 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-10 09:14 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 09:59 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 05:02 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 10:24 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 05:53 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 11:45 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-11 22:06 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-12 10:26 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-12 10:39 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-12 11:14 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor Andy Burns <usenet@andyburns.uk> - 2025-12-12 11:41 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-12 12:10 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-13 01:19 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-12 12:19 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-12 12:10 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-12 23:42 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-13 13:30 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor Fritz Wuehler <fritz@spamexpire-202512.rodent.frell.theremailer.net> - 2025-12-14 19:23 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-15 01:55 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-15 17:49 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-16 01:50 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-16 10:43 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor rbowman <bowman@montana.com> - 2025-12-16 20:40 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-17 01:05 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-17 01:55 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-17 10:31 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-17 06:25 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-18 19:00 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-19 00:55 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-17 00:20 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-17 01:01 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor rbowman <bowman@montana.com> - 2025-12-15 23:45 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-16 23:31 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-12-16 16:35 -0800
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-17 01:38 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-17 01:20 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor rbowman <bowman@montana.com> - 2025-12-17 07:58 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-17 03:24 -0500
                Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-17 20:39 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-15 17:46 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-11 22:03 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 09:57 +0000
          Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 09:55 +0000
            Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 05:36 -0500
              Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 11:33 +0000
      Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 09:47 +0000
        Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 05:29 -0500
          Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 11:29 +0000
          Re: More on wifi range - Pi PICO W Oil level sensor Daniel James <daniel@me.invalid> - 2025-12-10 13:01 +0000
            Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-10 13:05 +0000
              Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 23:19 -0500
            Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-10 23:12 -0500
              Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-11 08:48 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-11 04:19 -0500
                Cable chasing (Was: More on wifi range - Pi PICO W Oil level sensor) Daniel James <daniel@me.invalid> - 2025-12-11 10:15 +0000
              Inside out (Was: More on wifi range - Pi PICO W Oil level sensor) Daniel James <daniel@me.invalid> - 2025-12-11 10:23 +0000
                Re: Inside out (Was: More on wifi range - Pi PICO W Oil level sensor) Lars Poulsen <lars@beagle-ears.com> - 2025-12-11 18:16 +0000
                Re: Inside out (Was: More on wifi range - Pi PICO W Oil level sensor) John R Walliker <jrwalliker@gmail.com> - 2025-12-11 18:28 +0000
                Re: Inside out (Was: More on wifi range - Pi PICO W Oil level sensor) "Carlos E.R." <robin_listas@es.invalid> - 2025-12-11 21:59 +0100
                Re: Inside out (Was: More on wifi range - Pi PICO W Oil level sensor) The Natural Philosopher <tnp@invalid.invalid> - 2025-12-12 11:21 +0000
                Re: Inside out (Was: More on wifi range - Pi PICO W Oil level sensor) "Carlos E.R." <robin_listas@es.invalid> - 2025-12-13 13:45 +0100
  Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-11 22:18 +0100
    Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-12 10:41 +0000
      Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-13 13:57 +0100
    Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-12 11:28 +0000
      Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-13 13:56 +0100
        Re: More on wifi range - Pi PICO W Oil level sensor John R Walliker <jrwalliker@gmail.com> - 2025-12-14 19:22 +0000

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