wessie <willnotwork@tesco.net> wrote:
> siwilson <siwilson@nodamnspam.hotmail.com> wrote in
> news:jg431bFs0a8U1@mid.individual.net:
>
>> On 05/06/2022 17:06, wessie wrote:
>>> siwilson <siwilson@nodamnspam.hotmail.com> wrote in
>>> news:jg3t14Fr1asU1@mid.individual.net:
>>>
>>>>
>>>> Ooh, and tyre pressure monitor. Fancy.
>>>>
>>>
>>> do these work now? The sensors have a 3v CR2032 battery in them which
>>> might be flat by now. They can be replaced but of course, they are
>>> potted in. Youtube has bodging videos.
>>
>> Dunno yet, I suspect they will need mew batteries, yes.
>>
>
> like the ABS & TCS, the sensors don't communicate with the ECU until your
> moving. Perhaps, if you are lucky, as the bike spent most of its life
> hibernating, the sensors will have gone into deep sleep mode. Turby wasn't
> moaning about a warning light in France, just the fuel gauge.

FWIW, the TPMS sensors in my 2009 model year Toyota (built in May 2010,
so over 14 years old) broadcast about once a minute whether the vehicle
is in motion or stationary.

Amazingly, they are _still_ working and according to rtl_433, the battery
indicator bit says the batteries on all 4 are still OK.

Oh, and according to the TPMS sensors in my winter snow tires, it is ~
40 °C in the attic space of my garage where they are stored.

pi@newpi:~ $ cat summer; echo " ";tail tire_logfile.txt

rtl_433 -f 315M -F json -R 110 -M Newmodel | jq --unbuffered -r '.|[.time, \
..model, .id, .temperature_C*1.8+32, .pressure_kPa/6.89476]|@tsv' | \
tee --append tire_logfile.txt| nawk -W interactive -f TPMS.nawk

2022-06-05 16:21:12 PMV-107J 056428f2 102.2 36.68873173250411
2022-06-05 16:21:26 PMV-107J 044fa8f2 102.2 35.96934483578834
2022-06-05 16:22:15 PMV-107J 056428f2 102.2 36.68873173250411
2022-06-05 16:22:29 PMV-107J 044fa8f2 102.2 35.96934483578834
2022-06-05 16:22:36 PMV-107J 03bc68f3 104 36.68873173250411
2022-06-05 16:23:17 PMV-107J 056428f2 104 36.68873173250411
2022-06-05 16:23:30 PMV-107J 06e298f3 102.2 36.32903828414622
2022-06-05 16:23:40 PMV-107J 03bc68f3 104 36.68873173250411
2022-06-05 16:24:20 PMV-107J 056428f2 102.2 36.68873173250411
2022-06-05 16:24:36 PMV-107J 044fa8f2 102.2 35.96934483578834

--
FJR1300A, GL1000, KLR650A6F, EX250J9A, Vespa Ciao

On 6/5/2022 9:06 AM, wessie wrote:
> siwilson <siwilson@nodamnspam.hotmail.com> wrote in
> news:jg3t14Fr1asU1@mid.individual.net:
>
>>
>> Ooh, and tyre pressure monitor. Fancy.
>>
>
> do these work now? The sensors have a 3v CR2032 battery in them which might
> be flat by now. They can be replaced but of course, they are potted in.
> Youtube has bodging videos.

It seemed to work OK when I picked up the bike. Told me I needed air and
went quiet after I filled them.

--
The erstwhile Thomas
FJR1300, R1200GS, ST1100 (in memoriam)

Mark Olson <olsonm@tiny.invalid> wrote:

> FWIW, the TPMS sensors in my 2009 model year Toyota (built in May 2010,

May 2008 actually.

> so over 14 years old) broadcast about once a minute whether the vehicle
> is in motion or stationary.
>
> Amazingly, they are _still_ working and according to rtl_433, the battery
> indicator bit says the batteries on all 4 are still OK.
>
> Oh, and according to the TPMS sensors in my winter snow tires, it is ~
> 40 °C in the attic space of my garage where they are stored.
>
> pi@newpi:~ $ cat summer; echo " ";tail tire_logfile.txt
>
> rtl_433 -f 315M -F json -R 110 -M Newmodel | jq --unbuffered -r '.|[.time, \
> .model, .id, .temperature_C*1.8+32, .pressure_kPa/6.89476]|@tsv' | \
> tee --append tire_logfile.txt| nawk -W interactive -f TPMS.nawk
>
> 2022-06-05 16:21:12 PMV-107J 056428f2 102.2 36.68873173250411
> 2022-06-05 16:21:26 PMV-107J 044fa8f2 102.2 35.96934483578834
> 2022-06-05 16:22:15 PMV-107J 056428f2 102.2 36.68873173250411
> 2022-06-05 16:22:29 PMV-107J 044fa8f2 102.2 35.96934483578834
> 2022-06-05 16:22:36 PMV-107J 03bc68f3 104 36.68873173250411
> 2022-06-05 16:23:17 PMV-107J 056428f2 104 36.68873173250411
> 2022-06-05 16:23:30 PMV-107J 06e298f3 102.2 36.32903828414622
> 2022-06-05 16:23:40 PMV-107J 03bc68f3 104 36.68873173250411
> 2022-06-05 16:24:20 PMV-107J 056428f2 102.2 36.68873173250411
> 2022-06-05 16:24:36 PMV-107J 044fa8f2 102.2 35.96934483578834

--
FJR1300A, GL1000, KLR650A6F, EX250J9A, Vespa Ciao