I have separate 12 V power.
On 18.11.2016 17.01, Nigel Titley wrote: > > The issue *may* be that the relay board is overloading the power > available from the LinkUSB and causing random resets of the DS2408. It > depends on the power required to drive the relays on the Hobbyboards > board. > > Our relay board takes 160mA with all relays energised and this will > cause an overload on a LinkUSB which can only supply 50mA. If you are > powering it separately then this isn't going to be an issue, of course. > > Nigel > > > On 18/11/16 14:33, Arne Raaen wrote: >> Rele 6 - PIO.6 was NC. >> >> Rele 7 - PIO.7 was connected via about 5 m wire to a 2W LED light, >> and was turned on /off independently once a day by a shell script >> using owwrite. >> I noticed the light was on at unexpected times. >> >> All switches on the HB card was set for rele operation. No inputs >> were connected. >> >> >> Arne >> >> >> On 18.11.2016 13.17, Colin Reese wrote: >>> Maybe dumb question, but are the additional inputs floating or >>> connected? I noticed some interesting behavior on these as well when >>> in use recently. >>> >>> Colin >>> >>> >>> On Nov 18, 2016, at 1:45 AM, Arne Raaen <arn...@raaen.org >>> <mailto:arn...@raaen.org>> wrote: >>> >>>> Hi, >>>> >>>> I have a HobbyBoards relay card based on DS2408, used with LinkUSB >>>> >>>> I used a routine (unconditionally) updating PIO.0 through PIO.5 every >>>> minute. >>>> >>>> I observed that PIO.6 and PIO.7 would be activated at random intervals, >>>> typically a few times per day or less. >>>> >>>> >>>> I attempted >>>> * use all free pairs for a better ground line >>>> * plug the LinkUSB directly into the HB card >>>> * change from perl + OWNET to python + pyownet >>>> >>>> Nothing helped reliably. >>>> >>>> I than changed the code to read owserver first, and update only when >>>> needed, which reduces owserver writes from 6 per minute to a few times >>>> per day. >>>> >>>> Since then I have not seen any unwanted activation of PIO.6 and PIO.7. >>>> >>>> (Other owserver actvity is reading mainly temperature sensors, >>>> every minute) >>>> >>>> >>>> >>>> >>>> >>>> Arne >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> _______________________________________________ >>>> Owfs-developers mailing list >>>> Owfs-developers@lists.sourceforge.net >>>> <mailto:Owfs-developers@lists.sourceforge.net> >>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >>> >>> >>> ------------------------------------------------------------------------------ >>> >>> >>> _______________________________________________ >>> Owfs-developers mailing list >>> Owfs-developers@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >> >> >> >> >> ------------------------------------------------------------------------------ >> >> >> _______________________________________________ >> Owfs-developers mailing list >> Owfs-developers@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > > ------------------------------------------------------------------------------ > > > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers
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