Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E.R." Newsgroups: comp.os.linux.misc Subject: Re: More on wifi range - Pi PICO W Oil level sensor Date: Tue, 16 Dec 2025 23:31:31 +0100 Lines: 34 Message-ID: <37391mxgfc.ln2@Telcontar.valinor> References: <10hbholdi3b0@dont-email.me> <3bor0mxr8h.ln2@Telcontar.valinor> <10hgqjur3rh@dont-email.me> <4795ac3fd5ad1428f38c093b2b1543ca@msgid.frell.theremailer.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net XoZ+CpzxdMlFmwgd80aSjwstBZzwAOaqHnJCENDG6Ab+w9tpoQ X-Orig-Path: Telcontar.valinor!not-for-mail Cancel-Lock: sha1:6DqlFV1b/I1nuwpyvQdwzNbrNeE= sha256:NNVg6Sp3SRH9sbnRBJKRFXEeiH27IMTIEuYoRf2SBfM= User-Agent: Mozilla Thunderbird Content-Language: es-ES, en-CA In-Reply-To: Xref: csiph.com comp.os.linux.misc:79322 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🇪🇺;