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Groups > comp.os.linux.misc > #78549 > unrolled thread

More on wifi range - Pi PICO W Oil level sensor

Started byThe Natural Philosopher <tnp@invalid.invalid>
First post2025-12-09 10:47 +0000
Last post2025-12-24 22:53 +0000
Articles 20 on this page of 99 — 13 participants

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Contents

  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 "Carlos E.R." <robin_listas@es.invalid> - 2025-12-19 15:16 +0100
                                                      Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-20 03:26 -0500
                                                        Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-20 13:00 +0100
                                      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
      Re: More on wifi range - Pi PICO W Oil level sensor mm0fmf <none@invalid.com> - 2025-12-24 07:58 +0000
        Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-24 12:16 +0000
          Re: More on wifi range - Pi PICO W Oil level sensor John R Walliker <jrwalliker@gmail.com> - 2025-12-24 14:04 +0000
            Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-24 14:23 +0000
              Re: More on wifi range - Pi PICO W Oil level sensor "Kerr-Mudd, John" <admin@127.0.0.1> - 2025-12-24 17:00 +0000
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-24 20:07 +0000
                  Re: More on wifi range - Pi PICO W Oil level sensor mm0fmf <none@invalid.com> - 2025-12-24 23:17 +0000
                    Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-25 03:23 +0000
                      Re: More on wifi range - Pi PICO W Oil level sensor rbowman <bowman@montana.com> - 2025-12-25 07:32 +0000
                  Re: More on wifi range - Pi PICO W Oil level sensor c186282 <c186282@nnada.net> - 2025-12-24 21:16 -0500
              Re: More on wifi range - Pi PICO W Oil level sensor "Carlos E.R." <robin_listas@es.invalid> - 2025-12-27 21:51 +0100
                Re: More on wifi range - Pi PICO W Oil level sensor The Natural Philosopher <tnp@invalid.invalid> - 2025-12-27 23:31 +0000
                  Re: More on wifi range - Pi PICO W Oil level sensor rbowman <bowman@montana.com> - 2025-12-27 23:58 +0000
            Re: More on wifi range - Pi PICO W Oil level sensor Lars Poulsen <lars@beagle-ears.com> - 2025-12-24 23:01 +0000
          Re: More on wifi range - Pi PICO W Oil level sensor rbowman <bowman@montana.com> - 2025-12-25 02:29 +0000
        Re: More on wifi range - Pi PICO W Oil level sensor Lars Poulsen <lars@beagle-ears.com> - 2025-12-24 22:53 +0000

Page 3 of 5 — ← Prev page 1 2 [3] 4 5  Next page →


#79438

From"Carlos E.R." <robin_listas@es.invalid>
Date2025-12-18 19:00 +0100
Message-ID<i3sd1mxkjh.ln2@Telcontar.valinor>
In reply to#79370
On 2025-12-17 12:25, c186282 wrote:
> On 12/17/25 05:31, The Natural Philosopher wrote:
>> On 17/12/2025 06:55, c186282 wrote:


>> Nearest neighbour is outside wifi range. 250 metres or more.
> 
>    Lucky !
> 
>    I have more nearby.
> 
>    At least ONE might be an asshole. I think they
>    injected a load of NAZI bullshit into my old
>    printer - only stopped because all the paper
>    was used up. Getting into a printer directly
>    like that is not dead newbie skills.
> 

Maybe there is a virus that does that.


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

[toc] | [prev] | [next] | [standalone]


#79464

Fromc186282 <c186282@nnada.net>
Date2025-12-19 00:55 -0500
Message-ID<DeicnTbwGb5dddn0nZ2dnZfqn_udnZ2d@giganews.com>
In reply to#79438
On 12/18/25 13:00, Carlos E.R. wrote:
> On 2025-12-17 12:25, c186282 wrote:
>> On 12/17/25 05:31, The Natural Philosopher wrote:
>>> On 17/12/2025 06:55, c186282 wrote:
> 
> 
>>> Nearest neighbour is outside wifi range. 250 metres or more.
>>
>>    Lucky !
>>
>>    I have more nearby.
>>
>>    At least ONE might be an asshole. I think they
>>    injected a load of NAZI bullshit into my old
>>    printer - only stopped because all the paper
>>    was used up. Getting into a printer directly
>>    like that is not dead newbie skills.
>>
> 
> Maybe there is a virus that does that.

   Nah ... it was some "helpful" connectivity protocol
   HOPEFULLY from yesteryear. The printer would ID and
   let anybody anywhere dump stuff into it directly
   via wifi.

   Was never sure I managed to turn that off entirely,
   so I had to keep the printer turned off instead.

   I do SUSPECT who the perp was ... fortunately he
   grew up and switched over to loud hot-rods instead :-)

[toc] | [prev] | [next] | [standalone]


#79487

From"Carlos E.R." <robin_listas@es.invalid>
Date2025-12-19 15:16 +0100
Message-ID<pb3g1mxl5u.ln2@Telcontar.valinor>
In reply to#79464
On 2025-12-19 06:55, c186282 wrote:
> On 12/18/25 13:00, Carlos E.R. wrote:
>> On 2025-12-17 12:25, c186282 wrote:
>>> On 12/17/25 05:31, The Natural Philosopher wrote:
>>>> On 17/12/2025 06:55, c186282 wrote:
>>
>>
>>>> Nearest neighbour is outside wifi range. 250 metres or more.
>>>
>>>    Lucky !
>>>
>>>    I have more nearby.
>>>
>>>    At least ONE might be an asshole. I think they
>>>    injected a load of NAZI bullshit into my old
>>>    printer - only stopped because all the paper
>>>    was used up. Getting into a printer directly
>>>    like that is not dead newbie skills.
>>>
>>
>> Maybe there is a virus that does that.
> 
>    Nah ... it was some "helpful" connectivity protocol
>    HOPEFULLY from yesteryear. The printer would ID and
>    let anybody anywhere dump stuff into it directly
>    via wifi.
> 
>    Was never sure I managed to turn that off entirely,
>    so I had to keep the printer turned off instead.
> 
>    I do SUSPECT who the perp was ... fortunately he
>    grew up and switched over to loud hot-rods instead :-)

The router should block attempts to connect to internal printers from 
outside.


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

[toc] | [prev] | [next] | [standalone]


#79550

Fromc186282 <c186282@nnada.net>
Date2025-12-20 03:26 -0500
Message-ID<1l-dndZ71dlVwNv0nZ2dnZfqn_udnZ2d@giganews.com>
In reply to#79487
On 12/19/25 09:16, Carlos E.R. wrote:
> On 2025-12-19 06:55, c186282 wrote:
>> On 12/18/25 13:00, Carlos E.R. wrote:
>>> On 2025-12-17 12:25, c186282 wrote:
>>>> On 12/17/25 05:31, The Natural Philosopher wrote:
>>>>> On 17/12/2025 06:55, c186282 wrote:
>>>
>>>
>>>>> Nearest neighbour is outside wifi range. 250 metres or more.
>>>>
>>>>    Lucky !
>>>>
>>>>    I have more nearby.
>>>>
>>>>    At least ONE might be an asshole. I think they
>>>>    injected a load of NAZI bullshit into my old
>>>>    printer - only stopped because all the paper
>>>>    was used up. Getting into a printer directly
>>>>    like that is not dead newbie skills.
>>>>
>>>
>>> Maybe there is a virus that does that.
>>
>>    Nah ... it was some "helpful" connectivity protocol
>>    HOPEFULLY from yesteryear. The printer would ID and
>>    let anybody anywhere dump stuff into it directly
>>    via wifi.
>>
>>    Was never sure I managed to turn that off entirely,
>>    so I had to keep the printer turned off instead.
>>
>>    I do SUSPECT who the perp was ... fortunately he
>>    grew up and switched over to loud hot-rods instead :-)
> 
> The router should block attempts to connect to internal printers from 
> outside.


   Oh NO NO NO ! THIS protocol was made for "convenience"
   and works (hopefully WORKED) entirely within the printer.
   The IDEA was to make it hyper-simple for people in an
   office to connect direct to the printer, even by wifi.
   Didn't matter if the router/main-PC was on or not.

   If I can find the manual I'll report the exact protocol.

   The printer is now on the JUNK pile ... leaks blue
   toner to the max. NOT worth trying to fix. Got
   a new color-laser all-purpose unit - do NOT
   enable anything 'net' however. Use thumb-drives
   to xfer stuff.

   Hmmm ... gotta look up local JUNK services to take
   it, and a bunch of other old stuff, AWAY. My
   damned house has 3+ generations of STUFF inherited
   inside it, the junk piles are getting large ....
   have a VIC-20 buried under there somewhere, Sinclair
   ZX-81, Apple II, bits of a DEC-based H-11, even
   one of those Radio-Shack "original laptops" meant
   for news reporters (with actual Bill Gates code
   inside it). Never mind all the crap from Weird Aunts.
   Wow ........

   No, not gonna bother with e-Bay - don't like it.
   Money paradigm is a bit iffy for my tastes plus
   I'd actually have to pack/box stuff and take it
   to UPS or FedEx or whatever .........

   Can't even LIFT the H-11 dual 8" disk unit
   anymore ......

[toc] | [prev] | [next] | [standalone]


#79569

From"Carlos E.R." <robin_listas@es.invalid>
Date2025-12-20 13:00 +0100
Message-ID<tnfi1mx0kr.ln2@Telcontar.valinor>
In reply to#79550
On 2025-12-20 09:26, c186282 wrote:
> On 12/19/25 09:16, Carlos E.R. wrote:
>> On 2025-12-19 06:55, c186282 wrote:
>>> On 12/18/25 13:00, Carlos E.R. wrote:
>>>> On 2025-12-17 12:25, c186282 wrote:
>>>>> On 12/17/25 05:31, The Natural Philosopher wrote:
>>>>>> On 17/12/2025 06:55, c186282 wrote:
>>>>
>>>>
>>>>>> Nearest neighbour is outside wifi range. 250 metres or more.
>>>>>
>>>>>    Lucky !
>>>>>
>>>>>    I have more nearby.
>>>>>
>>>>>    At least ONE might be an asshole. I think they
>>>>>    injected a load of NAZI bullshit into my old
>>>>>    printer - only stopped because all the paper
>>>>>    was used up. Getting into a printer directly
>>>>>    like that is not dead newbie skills.
>>>>>
>>>>
>>>> Maybe there is a virus that does that.
>>>
>>>    Nah ... it was some "helpful" connectivity protocol
>>>    HOPEFULLY from yesteryear. The printer would ID and
>>>    let anybody anywhere dump stuff into it directly
>>>    via wifi.
>>>
>>>    Was never sure I managed to turn that off entirely,
>>>    so I had to keep the printer turned off instead.
>>>
>>>    I do SUSPECT who the perp was ... fortunately he
>>>    grew up and switched over to loud hot-rods instead :-)
>>
>> The router should block attempts to connect to internal printers from 
>> outside.
> 
> 
>    Oh NO NO NO ! THIS protocol was made for "convenience"
>    and works (hopefully WORKED) entirely within the printer.
>    The IDEA was to make it hyper-simple for people in an
>    office to connect direct to the printer, even by wifi.
>    Didn't matter if the router/main-PC was on or not.

Ah, I think I recall reading about this. Something "direct"?


> 
>    If I can find the manual I'll report the exact protocol.
> 
>    The printer is now on the JUNK pile ... leaks blue
>    toner to the max. NOT worth trying to fix. Got
>    a new color-laser all-purpose unit - do NOT
>    enable anything 'net' however. Use thumb-drives
>    to xfer stuff.
> 
>    Hmmm ... gotta look up local JUNK services to take
>    it, and a bunch of other old stuff, AWAY. My
>    damned house has 3+ generations of STUFF inherited
>    inside it, the junk piles are getting large ....
>    have a VIC-20 buried under there somewhere, Sinclair
>    ZX-81, Apple II, bits of a DEC-based H-11, even
>    one of those Radio-Shack "original laptops" meant
>    for news reporters (with actual Bill Gates code
>    inside it). Never mind all the crap from Weird Aunts.
>    Wow ........

Sounds familiar.

> 
>    No, not gonna bother with e-Bay - don't like it.
>    Money paradigm is a bit iffy for my tastes plus
>    I'd actually have to pack/box stuff and take it
>    to UPS or FedEx or whatever .........
> 
>    Can't even LIFT the H-11 dual 8" disk unit
>    anymore ......
> 


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

[toc] | [prev] | [next] | [standalone]


#79352

Fromc186282 <c186282@nnada.net>
Date2025-12-17 00:20 -0500
Message-ID<W1Odnb3blucxoN_0nZ2dnZfqn_ednZ2d@giganews.com>
In reply to#79276
On 12/16/25 05:43, The Natural Philosopher wrote:
> On 16/12/2025 06:50, c186282 wrote:
>> On 12/15/25 12:49, The Natural Philosopher wrote:
>>> On 15/12/2025 06:55, c186282 wrote:
>>>> In his app, does he even NEED "real time" ?
>>>>    "Close Enough" may be Good Enough perhaps.
>>>
>>> No,m I get a report every two hours
>>
>>    So seven milliseconds is CRITICAL obviously  :-)
>>
> LOL
> 
> 
>>> I did design my own PCBs
>>
>>    I've done a number from scratch ... photo-masks,
>>    evil chemicals, the whole bit.
>>
> It was cheaper to send the files to china than buy the kit..
> 
> https://dirtypcbs.com
> 
> Back in about 10 days at silly prices.

   Must have been a bit later ... no China-Fab
   when I was doing it - or, at least, you had
   to order 100 or 1000 units.

   Besides, Do It Yourself meant you could do
   prototypes, find the issues, tweak - THEN
   make the final boards. Anything using high
   frequencies can't be prototyped using mere
   experimenters plug boards, you HAVE to see
   how the positions of the traces, shields,
   affect thing on a real board. Parasitic
   capacitance can be a serious issue, unexpected
   induction/signal-jumping also.

>>    SOME use XYZ mini-routers to literally machine-out
>>    copper from boards. Ugly, but DOES work for many
>>    applications.
>>
> Ah. Mr Usagi.

   Hey, worked ...

> Some use 3D printers to deposit low melting point solder as well

   That's new ... SHOULD be good for a number of
   things however.

   IF 3-D printing can produce <= millimeter traces
   on a fiberglass board these days in one pass then
   that's the proverbial cat's meow for 'home'
   board design.

> We use what we have to hand. I use cCorel draw. There is an online 
> facility that turns that into the right format for PCB manufaturers.

   That'll work. There are also some more dedicated
   PCB design apps - some free, some very NOT free.
   Never had great luck/love for the free ones you
   can get for Linux alas ...

>>> I have a nano timer that reboots the board every 2 hours and then the 
>>> pi shuts itself off again.
>>
>>    I have a few PIs that just use crontab to
>>    reboot once/twice/thrice a day. Working on
>>    cleaning up the app that clutters/slows
>>    them down. Found some of the problems.
>>
> Yes. That reminds me, I need to put the watchdog in some of my daemons too
> But in the case of the oil sensor clienbt this is physical 'shut off all 
> power and stay down for two hours' Draws about 50nA in that period
> 
> 
>>    Now STARTING a Pi from scratch a few times
>>    a day, THEN you need an external timer device.
>>
>>    Microcontrollers, most have low-power libraries
>>    that 99.99% shut 'em down until there's an interrupt,
>>    perhaps from a time chip. PIs however - they're
>>    natural power hogs ... NOT good for battery/solar
>>    operation.
>>
> Looked at all that. Not good enough. I was going to build a CMOS timer 
> then I stumbled across the TP1550 chip.
> 
> liitle 'breakout' boards were dirt cheap
> 
> 
>>    I used a lot of Ard 2560s for solar field devices.
>>    They have low-power libs and reduce to seriously
>>    low current draw. DID slice the traces out of
>>    the cheapo time chip on the board and used
>>    "ChronoDots" instead. Interrupt, and it all
>>    comes back to life.
>>
>>    Oh, where an oSillyScope is a good thing ... had
>>    an odd issue where the board would reset for no
>>    obvious reason. Turned out I'd attached the time
>>    chip to a current-limited line ALSO shared by an
>>    external device. The device didn't use much power
>>    EXCEPT for maybe a sub-millisecond when it powered
>>    up. Probably caps charging. FOUND that deadly
>>    voltage dip with a scope, little else would have.
>>    Had kept looking for a software problem, but ...
>>
> I used my sillyscope to see why the *!%$£ things was oscillating under 
> power.
> 
> turned out to need serious capacitance on the output to stop the wrong 
> sort of feedback triggering it
> 
> 

[toc] | [prev] | [next] | [standalone]


#79353

Fromc186282 <c186282@nnada.net>
Date2025-12-17 01:01 -0500
Message-ID<CcCcnbgCnYbd2t_0nZ2dnZfqn_SdnZ2d@giganews.com>
In reply to#79276
On 12/16/25 05:43, The Natural Philosopher wrote:
> On 16/12/2025 06:50, c186282 wrote:
>> On 12/15/25 12:49, The Natural Philosopher wrote:
>>> On 15/12/2025 06:55, c186282 wrote:
>>>> In his app, does he even NEED "real time" ?
>>>>    "Close Enough" may be Good Enough perhaps.
>>>
>>> No,m I get a report every two hours
>>
>>    So seven milliseconds is CRITICAL obviously  :-)
>>
> LOL
> 
> 
>>> I did design my own PCBs
>>
>>    I've done a number from scratch ... photo-masks,
>>    evil chemicals, the whole bit.
>>
> It was cheaper to send the files to china than buy the kit..
> 
> https://dirtypcbs.com
> 
> Back in about 10 days at silly prices.
> 
>>    SOME use XYZ mini-routers to literally machine-out
>>    copper from boards. Ugly, but DOES work for many
>>    applications.
>>
> Ah. Mr Usagi.
> 
> Some use 3D printers to deposit low melting point solder as well
> 
> We use what we have to hand. I use cCorel draw. There is an online 
> facility that turns that into the right format for PCB manufaturers.
> 
>>> I have a nano timer that reboots the board every 2 hours and then the 
>>> pi shuts itself off again.
>>
>>    I have a few PIs that just use crontab to
>>    reboot once/twice/thrice a day. Working on
>>    cleaning up the app that clutters/slows
>>    them down. Found some of the problems.
>>
> Yes. That reminds me, I need to put the watchdog in some of my daemons too
> But in the case of the oil sensor clienbt this is physical 'shut off all 
> power and stay down for two hours' Draws about 50nA in that period


   PIs *are* a problem. As said, power hogs.

   Many microcontroller-based units let you shut
   down most every bit of hardware on the board
   and put the processor into a super-efficient
   idle mode awaiting an interrupt. Not so with
   the PIs, they're closer to "traditional
   computers".

   DO have some watchdog routines for a few of my PI
   programs, running as little daemons. The easiest
   approach has been to have the pgm touch a file
   every x-seconds/minutes. If the watchdog finds
   a too-old date then do something drastic. These
   watchdogs can literally be half a dozen lines
   of Python, depending on the IQ needed. Stupid,
   simple, EFFECTIVE.


> 
>>    Now STARTING a Pi from scratch a few times
>>    a day, THEN you need an external timer device.
>>
>>    Microcontrollers, most have low-power libraries
>>    that 99.99% shut 'em down until there's an interrupt,
>>    perhaps from a time chip. PIs however - they're
>>    natural power hogs ... NOT good for battery/solar
>>    operation.
>>
> Looked at all that. Not good enough. I was going to build a CMOS timer 
> then I stumbled across the TP1550 chip.
> 
> liitle 'breakout' boards were dirt cheap


   Lots of 'time'-type chips, and they'll be a LOT more
   accurate than any home-built circuit.

   The DS-3231 chips are just great, very well temperature
   compensated, accurate as hell long-term. Some say the
   newer MAX-31328 time chips are even a bit better.

   I did lots of 'field devices/dataloggers' for awhile
   and accurate date stamps were very important. Also
   the chips DO have 'alarm' functions you can set just
   before yer board shuts down ... 'wake me up in 30
   minutes' or similar. A naked wake-me-up chip with
   just a few extra transistors could indeed be used
   to wake up a PI or even something bigger. Look
   into 'solid-state relays', hell, you could turn
   on a whole house/factory :-)


>>    I used a lot of Ard 2560s for solar field devices.
>>    They have low-power libs and reduce to seriously
>>    low current draw. DID slice the traces out of
>>    the cheapo time chip on the board and used
>>    "ChronoDots" instead. Interrupt, and it all
>>    comes back to life.
>>
>>    Oh, where an oSillyScope is a good thing ... had
>>    an odd issue where the board would reset for no
>>    obvious reason. Turned out I'd attached the time
>>    chip to a current-limited line ALSO shared by an
>>    external device. The device didn't use much power
>>    EXCEPT for maybe a sub-millisecond when it powered
>>    up. Probably caps charging. FOUND that deadly
>>    voltage dip with a scope, little else would have.
>>    Had kept looking for a software problem, but ...
>>
> I used my sillyscope to see why the *!%$£ things was oscillating under 
> power.
> 
> turned out to need serious capacitance on the output to stop the wrong 
> sort of feedback triggering it

   Capacitance will getcha - or SAVE ya !!!

   Oh, dealing with sensor inputs in electrically
   noisy environs ... if possible try optoisolators.
   The LEDs require CURRENT, not just voltage spikes,
   to light up. Made some automotive/ag devices,
   some had 'pony' motors that gave off noise like
   mad. Optos were the salvation. They don't work
   with high frequencies, but for devices that mostly
   send 'pulses', low-baud serial and such ...

   Higher freqs ... unintended HF/RF coupling between
   components/stages creeps in.

   Nothing is as easy as it first seems  :-)

[toc] | [prev] | [next] | [standalone]


#79238

Fromrbowman <bowman@montana.com>
Date2025-12-15 23:45 +0000
Message-ID<mqbksdF70clU3@mid.individual.net>
In reply to#79138
On Mon, 15 Dec 2025 01:55:41 -0500, c186282 wrote:

> On 12/14/25 13:23, Fritz Wuehler wrote:
>> The Natural Philosopher <...@invalid.invalid> [TNP]:
>> TNP> Depending on how long the batteries last I may increase the TNP>
>> frequency of operation.  But it can never be 'real time'
>> 
>> Have you considered using a couple of old 12V car/motorcycle batteries
>> (one at a time) instead?
> 
>    Those are BIG (and heavy and need special recharge).
>    At least they don't detonate like Li-Ion batts.

Depends on your definition of big. The V-Strom's battery is 6"x3.5"x5"h 
and is easily recharged with a $40 battery tender. The DR650's is even 
smaller but it's still in the bike so I can't measure it.

[toc] | [prev] | [next] | [standalone]


#79322

From"Carlos E.R." <robin_listas@es.invalid>
Date2025-12-16 23:31 +0100
Message-ID<37391mxgfc.ln2@Telcontar.valinor>
In reply to#79138
On 2025-12-15 07:55, c186282 wrote:
> On 12/14/25 13:23, Fritz Wuehler wrote:
>> The Natural Philosopher <...@invalid.invalid> [TNP]:
>> TNP> Depending on how long the batteries last I may increase the
>> TNP> frequency of operation.  But it can never be 'real time'
>>
>> Have you considered using a couple of old 12V car/motorcycle batteries
>> (one at a time) instead?
> 
>    Those are BIG (and heavy and need special recharge).
>    At least they don't detonate like Li-Ion batts.
> 
>    Had a weather station that used up batteries too fast.
>    Wanted to convert it to solar charge with a small lead
>    battery - 6v. Well, first you needed a 9-12v solar
>    panel, easy enough, but then a converter to get that
>    into the range a dedicated lead/acid charger could
>    cope with AND the charger could NOT cause the circuit
>    to see any more than 6v regardless of sun levels.
>    Turned into a MESS.
> 
>    Solution ... 9v little solar, a resistor bridge to
>    drop to about 6.5v and a 10w zener to suck up any
>    over-voltage across the device power leads. The batt
>    just got a small harmless 'trickle charge' which was
>    enough to deal. Less tech = MORE in this case.

Doesn't anybody sell, ready to use, solar panel plus battery and 
controller, ready to use?


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

[toc] | [prev] | [next] | [standalone]


#79329

FromBobbie Sellers <bliss-sf4ever@dslextreme.com>
Date2025-12-16 16:35 -0800
Message-ID<10hstsq$35db0$1@dont-email.me>
In reply to#79322

On 12/16/25 14:31, Carlos E.R. wrote:
> On 2025-12-15 07:55, c186282 wrote:
>> On 12/14/25 13:23, Fritz Wuehler wrote:
>>> The Natural Philosopher <...@invalid.invalid> [TNP]:
>>> TNP> Depending on how long the batteries last I may increase the
>>> TNP> frequency of operation.  But it can never be 'real time'
>>>
>>> Have you considered using a couple of old 12V car/motorcycle batteries
>>> (one at a time) instead?
>>
>>    Those are BIG (and heavy and need special recharge).
>>    At least they don't detonate like Li-Ion batts.
>>
>>    Had a weather station that used up batteries too fast.
>>    Wanted to convert it to solar charge with a small lead
>>    battery - 6v. Well, first you needed a 9-12v solar
>>    panel, easy enough, but then a converter to get that
>>    into the range a dedicated lead/acid charger could
>>    cope with AND the charger could NOT cause the circuit
>>    to see any more than 6v regardless of sun levels.
>>    Turned into a MESS.
>>
>>    Solution ... 9v little solar, a resistor bridge to
>>    drop to about 6.5v and a 10w zener to suck up any
>>    over-voltage across the device power leads. The batt
>>    just got a small harmless 'trickle charge' which was
>>    enough to deal. Less tech = MORE in this case.
> 
> Doesn't anybody sell, ready to use, solar panel plus battery and 
> controller, ready to use?
> 
	Via DuckDuckGo using your terms above.

<https://www.amazon.com/Renogy-200-Watt-Monocrystalline-Controller/dp/B07RFQVB9M>

	bliss

[toc] | [prev] | [next] | [standalone]


#79356

Fromc186282 <c186282@nnada.net>
Date2025-12-17 01:38 -0500
Message-ID<CcCcnboCnYZS0t_0nZ2dnZfqn_SdnZ2d@giganews.com>
In reply to#79329
On 12/16/25 19:35, Bobbie Sellers wrote:
> 
> 
> On 12/16/25 14:31, Carlos E.R. wrote:
>> On 2025-12-15 07:55, c186282 wrote:
>>> On 12/14/25 13:23, Fritz Wuehler wrote:
>>>> The Natural Philosopher <...@invalid.invalid> [TNP]:
>>>> TNP> Depending on how long the batteries last I may increase the
>>>> TNP> frequency of operation.  But it can never be 'real time'
>>>>
>>>> Have you considered using a couple of old 12V car/motorcycle batteries
>>>> (one at a time) instead?
>>>
>>>    Those are BIG (and heavy and need special recharge).
>>>    At least they don't detonate like Li-Ion batts.
>>>
>>>    Had a weather station that used up batteries too fast.
>>>    Wanted to convert it to solar charge with a small lead
>>>    battery - 6v. Well, first you needed a 9-12v solar
>>>    panel, easy enough, but then a converter to get that
>>>    into the range a dedicated lead/acid charger could
>>>    cope with AND the charger could NOT cause the circuit
>>>    to see any more than 6v regardless of sun levels.
>>>    Turned into a MESS.
>>>
>>>    Solution ... 9v little solar, a resistor bridge to
>>>    drop to about 6.5v and a 10w zener to suck up any
>>>    over-voltage across the device power leads. The batt
>>>    just got a small harmless 'trickle charge' which was
>>>    enough to deal. Less tech = MORE in this case.
>>
>> Doesn't anybody sell, ready to use, solar panel plus battery and 
>> controller, ready to use?
>>
>      Via DuckDuckGo using your terms above.
> 
> <https://www.amazon.com/Renogy-200-Watt-Monocrystalline-Controller/dp/ 
> B07RFQVB9M>

   That's a panel with integrated 12v charge regulator.
   You still have to buy the batteries. Likely some
   restrictions on those.

   Not a bad thing however - if you want to pay $227 USD.

   Now *I* didn't need 200 watts, more like TWO watts.
   That's still mostly "do it yourself" territory.

[toc] | [prev] | [next] | [standalone]


#79354

Fromc186282 <c186282@nnada.net>
Date2025-12-17 01:20 -0500
Message-ID<CcCcnbsCnYYD1t_0nZ2dnZfqn_QAAAAA@giganews.com>
In reply to#79322
On 12/16/25 17:31, Carlos E.R. wrote:
> On 2025-12-15 07:55, c186282 wrote:
>> On 12/14/25 13:23, Fritz Wuehler wrote:
>>> The Natural Philosopher <...@invalid.invalid> [TNP]:
>>> TNP> Depending on how long the batteries last I may increase the
>>> TNP> frequency of operation.  But it can never be 'real time'
>>>
>>> Have you considered using a couple of old 12V car/motorcycle batteries
>>> (one at a time) instead?
>>
>>    Those are BIG (and heavy and need special recharge).
>>    At least they don't detonate like Li-Ion batts.
>>
>>    Had a weather station that used up batteries too fast.
>>    Wanted to convert it to solar charge with a small lead
>>    battery - 6v. Well, first you needed a 9-12v solar
>>    panel, easy enough, but then a converter to get that
>>    into the range a dedicated lead/acid charger could
>>    cope with AND the charger could NOT cause the circuit
>>    to see any more than 6v regardless of sun levels.
>>    Turned into a MESS.
>>
>>    Solution ... 9v little solar, a resistor bridge to
>>    drop to about 6.5v and a 10w zener to suck up any
>>    over-voltage across the device power leads. The batt
>>    just got a small harmless 'trickle charge' which was
>>    enough to deal. Less tech = MORE in this case.
> 
> Doesn't anybody sell, ready to use, solar panel plus battery and 
> controller, ready to use?

   Umm ... haven't SEEN any - but that doesn't mean they
   don't exist.

   The prob is 'application' - HOW would you use the thing ?
   This could complicate any commercial offerings.

   There ARE some odd things like 'emergency radios'
   which combine a solar panel and battery charger
   and voltage regulator. They're mostly not very
   expensive. Crack 'em open .....

   AND you can play tunes  :-)

   Oh, 'solar-rechargers/power-banks' for phones and
   such, many are reported to be very UNSAFE, prone
   to fires. Little/no regulation or safety features.
   Sorry, $19.95 won't buy you everything ....

[toc] | [prev] | [next] | [standalone]


#79362

Fromrbowman <bowman@montana.com>
Date2025-12-17 07:58 +0000
Message-ID<mqf651Fp0j4U4@mid.individual.net>
In reply to#79354
On Wed, 17 Dec 2025 01:20:14 -0500, c186282 wrote:

>    Oh, 'solar-rechargers/power-banks' for phones and such, many are
>    reported to be very UNSAFE, prone to fires. Little/no regulation or
>    safety features.
>    Sorry, $19.95 won't buy you everything ....

They're probably improved but a friend had a solar device to recharge 
NiCad AAs. It worked, if you had 4 days to spare in southern Arizona.

[toc] | [prev] | [next] | [standalone]


#79365

Fromc186282 <c186282@nnada.net>
Date2025-12-17 03:24 -0500
Message-ID<CcCcnbQCnYYw9d_0nZ2dnZfqn_SdnZ2d@giganews.com>
In reply to#79362
On 12/17/25 02:58, rbowman wrote:
> On Wed, 17 Dec 2025 01:20:14 -0500, c186282 wrote:
> 
>>     Oh, 'solar-rechargers/power-banks' for phones and such, many are
>>     reported to be very UNSAFE, prone to fires. Little/no regulation or
>>     safety features.
>>     Sorry, $19.95 won't buy you everything ....
> 
> They're probably improved but a friend had a solar device to recharge
> NiCad AAs. It worked, if you had 4 days to spare in southern Arizona.

   The slow charging was probably a GOOD THING, relatively
   speaking ... would not cook/explode the batteries.

   NiMH batteries are even worse than NiCad ... you literally
   have to monitor how HOT they get. When the temperature
   suddenly goes up, they're fully charged.

   LiPo ... slower IS better, 95% IS better than trying
   for 100%. The damned things LOVE to explode. I've
   seen tech stories that like HALF the LiPo batts in
   the USA are factory REJECTS.

   HAD one explode in my office once ... it hadn't been
   recharged for months. Barely BRUSHED it with my arm
   and it went off. Big crimson flames, massive noxious
   smoke, small burn on my arm. I just *really* don't
   trust the things. Have some big LiPo batts for large
   drills and such ... I charge 'em and then KEEP THEM
   IN THE OVEN (which I never use for cooking). If they
   explode, perfect heat-proof place.

   Hmmm ... when I retired, a fellow made a 'character'
   reference - upon seeing me just calmly watching the
   battery spurt huge flames. Hey, nothing to DO about
   it after all ... !  :-)

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#79393

From"Carlos E.R." <robin_listas@es.invalid>
Date2025-12-17 20:39 +0100
Message-ID<ehdb1mx47g.ln2@Telcontar.valinor>
In reply to#79138
On 2025-12-16 23:31, Carlos E.R. wrote:
> On 2025-12-15 07:55, c186282 wrote:
>> On 12/14/25 13:23, Fritz Wuehler wrote:
>>> The Natural Philosopher <...@invalid.invalid> [TNP]:
>>> TNP> Depending on how long the batteries last I may increase the
>>> TNP> frequency of operation.  But it can never be 'real time'
>>>
>>> Have you considered using a couple of old 12V car/motorcycle batteries
>>> (one at a time) instead?
>>
>>    Those are BIG (and heavy and need special recharge).
>>    At least they don't detonate like Li-Ion batts.
>>
>>    Had a weather station that used up batteries too fast.
>>    Wanted to convert it to solar charge with a small lead
>>    battery - 6v. Well, first you needed a 9-12v solar
>>    panel, easy enough, but then a converter to get that
>>    into the range a dedicated lead/acid charger could
>>    cope with AND the charger could NOT cause the circuit
>>    to see any more than 6v regardless of sun levels.
>>    Turned into a MESS.
>>
>>    Solution ... 9v little solar, a resistor bridge to
>>    drop to about 6.5v and a 10w zener to suck up any
>>    over-voltage across the device power leads. The batt
>>    just got a small harmless 'trickle charge' which was
>>    enough to deal. Less tech = MORE in this case.
> 
> Doesn't anybody sell, ready to use, solar panel plus battery and 
> controller, ready to use?

I was thinking of something like in this advert:

<https://photos.app.goo.gl/HmmTvmem7vVhDJzX7>

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

[toc] | [prev] | [next] | [standalone]


#79161

FromThe Natural Philosopher <tnp@invalid.invalid>
Date2025-12-15 17:46 +0000
Message-ID<10hphgq$22juh$2@dont-email.me>
In reply to#79087
On 14/12/2025 18:23, Fritz Wuehler wrote:
> The Natural Philosopher <...@invalid.invalid> [TNP]:
> TNP> Depending on how long the batteries last I may increase the
> TNP> frequency of operation.  But it can never be 'real time'
> 
> Have you considered using a couple of old 12V car/motorcycle batteries
> (one at a time) instead?
> 
I considered almost everything.

In the end with the nano timer I estimate about a years supply on 3 x AA.

Good enough, especially as it should email me if the battery gets low.

Or if no signal arrives at all

-- 
A lie can travel halfway around the world while the truth is putting on 
its shoes.

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#78833

From"Carlos E.R." <robin_listas@es.invalid>
Date2025-12-11 22:03 +0100
Message-ID<95or0mxr8h.ln2@Telcontar.valinor>
In reply to#78646
On 2025-12-10 11:02, c186282 wrote:
> 
>    I've had to skip subject threading because of all
>    the new postings ... just datetime sorting now.

That's the fault of your client software. Thunderbird threads correctly 
even if the subject changes. I don't know what you are using :-?

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

[toc] | [prev] | [next] | [standalone]


#78644

FromThe Natural Philosopher <tnp@invalid.invalid>
Date2025-12-10 09:57 +0000
Message-ID<10hbg71$1di3b$3@dont-email.me>
In reply to#78638
On 10/12/2025 08:15, Andy Burns wrote:
> c186282 wrote:
> 
>> judging by the problem you claimed, your
>>    easy fix is an extender.
> 
> I didn't say there was a problem, just that you can notice signal levels 
> go up and down depending on the presence or absence of a big red truck.

Just about anything messes 2.4GHz. I have no idea what modulation schema 
wifi uses but it's probably not able to handle *changing* multipath.

Making the wifi itself into a motion detector...



-- 
  “A leader is best When people barely know he exists. Of a good leader, 
who talks little,When his work is done, his aim fulfilled,They will say, 
“We did this ourselves.”

― Lao Tzu, Tao Te Ching

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#78643

FromThe Natural Philosopher <tnp@invalid.invalid>
Date2025-12-10 09:55 +0000
Message-ID<10hbg1l$1di3b$2@dont-email.me>
In reply to#78631
On 10/12/2025 05:27, c186282 wrote:
   nastiness.
> 
>    Easiest ... add one wifi extender, log into
>    the camera, see whether you get more bars
>    with the main or the extender.
> 

Actually something that might be of interest...

# iwlist wlan0 scanning | grep -e Cell -e Channel -e Quality -e Encrypt 
-e ESSID

Shows all stations visible to a ZeroW  ... run it as root...

          Cell 01 - Address: 00:1D:AA:79:78:40
                     Channel:7
                     Frequency:2.442 GHz (Channel 7)
                     Quality=44/70  Signal level=-66 dBm
                     Encryption key:on
                     ESSID:"Wifi1"
           Cell 02 - Address: 30:46:9A:A2:89:F6
                     Channel:13
                     Frequency:2.472 GHz (Channel 13)
                     Quality=51/70  Signal level=-59 dBm
                     Encryption key:on
                     ESSID:"wifi2"
           Cell 03 - Address: 74:4D:28:4A:21:86
                     Channel:3
                     Frequency:2.422 GHz (Channel 3)
                     Quality=35/70  Signal level=-75 dBm
                     Encryption key:on
                     ESSID:"wifi3"
etc etc.


-- 
"First, find out who are the people you can not criticise. They are your 
oppressors."
      - George Orwell

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#78652

Fromc186282 <c186282@nnada.net>
Date2025-12-10 05:36 -0500
Message-ID<JzCdnUcVx_m40KT0nZ2dnZfqn_GdnZ2d@giganews.com>
In reply to#78643
On 12/10/25 04:55, The Natural Philosopher wrote:
> On 10/12/2025 05:27, c186282 wrote:
>    nastiness.
>>
>>    Easiest ... add one wifi extender, log into
>>    the camera, see whether you get more bars
>>    with the main or the extender.
>>
> 
> Actually something that might be of interest...
> 
> # iwlist wlan0 scanning | grep -e Cell -e Channel -e Quality -e Encrypt 
> -e ESSID
> 
> Shows all stations visible to a ZeroW  ... run it as root...
> 
>           Cell 01 - Address: 00:1D:AA:79:78:40
>                      Channel:7
>                      Frequency:2.442 GHz (Channel 7)
>                      Quality=44/70  Signal level=-66 dBm
>                      Encryption key:on
>                      ESSID:"Wifi1"
>            Cell 02 - Address: 30:46:9A:A2:89:F6
>                      Channel:13
>                      Frequency:2.472 GHz (Channel 13)
>                      Quality=51/70  Signal level=-59 dBm
>                      Encryption key:on
>                      ESSID:"wifi2"
>            Cell 03 - Address: 74:4D:28:4A:21:86
>                      Channel:3
>                      Frequency:2.422 GHz (Channel 3)
>                      Quality=35/70  Signal level=-75 dBm
>                      Encryption key:on
>                      ESSID:"wifi3"
> etc etc.

   Interesting.

   DOES show a number of "cells" ... but not the ESSID of
   my extender for some reason.

   In theory, this sort of data could be used by a
   relatively simple daemon to switch back and
   forth to the 'best' signal. The old CL stuff
   is fine ... but can sometimes be replaced by
   half a dozen lines of more-comprehensible Python.



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