Hello, both of you are right. I feel stupid for having posted this, because I have now read the DS18B20 datasheet and understood that I knew almost nothing. I didn't know that there is 2 pullup modes, one weak and one strong. And that we have to activate the strong pullup 10micro-seconds after issuing a convert command in parasite mode. My Arduino isn't doing that. My DS2482-800 does. I was comparing apples and raspberries ;-) Anyway we learn every day. Thanks for that! -- Guy
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