Hello. I have 20 DS18B20 temperature sensors connected to my Pi. Every minute the values will be refreshed. Sometimes the value from any sensor does not show the right temperature e.g. 20°C. but 85°C. For this wrong value I have a switch. All values under 82°C are OK. If the value is other for mor…

dynamicdave 10 October 2022 09:55 4

If you have a numbers of sensors connected to the same pin on the RPi - you might find it useful to have a look at this thread...

I've never had more than 2 or 3 sensors connected to the same pin, so may not be able to help you.

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Temperature sensor functionality

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