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 Message 21660 
 Carlos E.R. to All 
 Re: More on wifi range - Pi PICO W Oil l 
 12 Dec 25 12:19:35 
 
MSGID: <7bat0mxbob.ln2@Telcontar.valinor> 92c32a5b
REPLY: <10hgqju$2r3rh$1@dont-email.me> a2dced09
PID: PyGate 1.5.2
TID: PyGate/Linux 1.5.2
CHRS: UTF-8 4
TZUTC: 0100
REPLYADDR robin_listas@es.invalid
REPLYTO 3:633/10 UUCP
On 2025-12-12 11:26, The Natural Philosopher wrote:
> On 11/12/2025 21:06, Carlos E.R. wrote:
>> On 2025-12-10 11:24, The Natural Philosopher wrote:
>>> On 10/12/2025 10:02, c186282 wrote:
>>>> On 12/10/25 04:14, Andy Burns wrote:
>>>>> c186282 wrote:


>>> Now off to write the software that will look at it for me and warn me 
>>> of things by email.
>>> So I can get on with the next project.
>>
>> You mentioned thieves stealing fuel. You can also monitor for that. 
>> You would need a fuel flow meter on the fuel line, or a sensor telling 
>> when the furnace is working. Compare with the tank level decreasing 
>> rapidly.
>>
> 
> The problem is that the sensor I built on the tank has no power except 
> batteries: So it only wakes up occasionally and draws nanoamps in between.
> I have completed the warning software that looks for low oil levels, 
> loss of communication, a failing battery and unexpected changes in oil 
> level, BUT it cannot do that in real time as the unit is only powered up 
> for a minute or so every couple of hours.
> 
> Depending on how long the batteries last I may increase the frequency of 
> operation. But it can never be 'real time'

Ah.

What about a small solar panel and rechargeable batteries?

-- 
Cheers, Carlos.
ES??, EU??;

--- PyGate Linux v1.5.2
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