Hi, no effect time cat /mnt/1wire/pivnica_rack/temperature && echo 1 > /mnt/1wire/simultaneous/temperature && time cat /mnt/1wire/*/temperature 25.125 real 0m1.329s user 0m0.000s sys 0m0.000s 5.87562.7519.812521.12519.562525.1251928.437544.1252019.2520.31252022.520.937523.312520.521.93750-0.0625 real 0m24.063s user 0m0.000s sys 0m0.000s
2014-10-28 15:43 GMT+01:00 Roberto Spadim <robe...@spadim.com.br>: > Check if temperature waits 2 seconds, if true, read temperature from > sensors after echo 1 > > > Em terça-feira, 28 de outubro de 2014, Coudy <co...@chovan.net> escreveu: > >> Please, >> can you be more specific ? >> When I try echo "1" > /mnt/1wire/simultaneous/temperature, cat >> /mnt/1wire/simultaneous/temperature return 0. >> >> Wiki is outdated http://owfs.org/index.php?page=temperature-measurements >> >> I have compiled from source with --enable-mt >> ./configure --disable-owftpd --disable-owhttpd --enable-usb >> --enable-debian --enable-owfs --enable-mt --prefix=/usr >> >> >> >> 2014-10-28 15:13 GMT+01:00 Roberto Spadim <robe...@spadim.com.br>: >> >>> http://sourceforge.net/p/owfs/mailman/message/19829236/ >>> >>> Em terça-feira, 28 de outubro de 2014, Roberto Spadim < >>> robe...@spadim.com.br> escreveu: >>> >>> There's a command to convert temperature of all sensors in the bus, >>>> that's the simultaneous conversion >>>> Check owfs file system there's a file just for this >>>> Check ds1820 datasheet too , that's interesting when you need speed >>>> >>>> Em terça-feira, 28 de outubro de 2014, Coudy <co...@chovan.net> >>>> escreveu: >>>> >>>>> Hi, what do you mean with "do a simultaneous conversion and read the >>>>> values after the conversion is done on all sensors." ? >>>>> Could you please add example ? >>>>> I read data with cat /mountpoint/sensor/temperature. >>>>> >>>>> If temperature sensor is powered, then reading is faster compared to >>>>> parasitic power ? >>>>> >>>>> >>>>> 2014-10-28 11:40 GMT+01:00 Jan Kandziora <j...@gmx.de>: >>>>> >>>>>> Am 27.10.2014 um 18:08 schrieb Coudy: >>>>>> > I have in Zabbix Timeout 15 seconds. I want to try restart server >>>>>> every >>>>>> > hour, then I'll post results >>>>>> > >>>>>> Sampling 19 temperature sensors one-by-one takes up to 19 seconds. >>>>>> This >>>>>> is due to the lengthy A/D conversion process. >>>>>> >>>>>> Either increase the timeout, sample 9-bit or 10-bit only, or power the >>>>>> sensors, then do a simultaneous conversion and read the values after >>>>>> the >>>>>> conversion is done on all sensors. The latter takes about 2 seconds >>>>>> for >>>>>> 20 sensors in 12-Bit mode on a DS9097. >>>>>> >>>>>> Kind regards >>>>>> >>>>>> Jan >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> _______________________________________________ >>>>>> Owfs-developers mailing list >>>>>> Owfs-developers@lists.sourceforge.net >>>>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >>>>>> >>>>> >>>>> >>>> >>>> -- >>>> Roberto Spadim >>>> SPAEmpresarial >>>> Eng. Automação e Controle >>>> >>>> >>> >>> -- >>> Roberto Spadim >>> SPAEmpresarial >>> Eng. Automação e Controle >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> Owfs-developers mailing list >>> Owfs-developers@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >>> >>> >> > > -- > Roberto Spadim > SPAEmpresarial > Eng. Automação e Controle > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > >
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