Sorry. I got some wire shorted in my circuit that's why it wasn't working. now its working well sorry again.
On Fri, May 17, 2019 at 2:09 PM Nico Bouthoorn <n...@cuora.nl> wrote: > How do you use the ds18b20?, parasitic or it's own power. I got very > strange readings if the power pin left open on the ds18b20. > > Nico > > nihar Modi schreef: > > Hey, thanks for the reply. But meanwhile I got in new trouble. Owdir > command sometime shows all the sensors but as I add a new one it randomly > shows two or three sensors only. I am trying continuously for two days and > same problem persists. I am using 7-8 ds18b20 with ds2482-800 and powering > it through R pi 3b 3.3 volts. I am using external 4.7K pull up. Please tell > a solution. Thanks in advance. > > > > On Thu 16 May, 2019, 17:36 Jan Kandziora, <j...@gmx.de <mailto:j...@gmx.de>> > wrote: > > > > Am 16.05.19 um 11:33 schrieb modi: > > > Hi > > > I am using owfs for first time. I have to take temperature from > 10 dsb1820 > > > through ds2482-800 via r pi 3. I have followed instructions from > > > http://www.sheepwalkelectronics.co.uk/RPI2_software.php . > > > > > > It is giving correct values until I connect 5 sensors on one bus. > As soon as > > > I connect 6th one it gives 85 as output. I have tried 3 on one > bus and 3 on > > > other but same 85 output. I have tried 1.5K instead of 4.7K, no > difference. > > > I can only use 3.3 volts for ds2482-800 as it is a part of larger > system. > > > > > 85°C is the power-on value. If you get a steady 85°C readout, it > means > > your sensors power-cycle during the conversion. > > > > You don't have to put pullups to the DS2482-800's 1W pins, it does so > > internally. It also uses its strong pullup feature automatically. > > > > Check your power supply. > > > > Kind regards > > > > Jan > > > > > > _______________________________________________ > > 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 > > > > -- > 0623391101 >
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