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> 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 > https://lists.sourceforge.net/lists/listinfo/owfs-developers >
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