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
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