Strange Behavior on DS18B20 Temp sensor and Pull-up Resistor

[zeronix]

@Koepel

You don't have to repeat everything I wrote, what I wrote is already there
Did you know that you can select a text with the mouse in a message, and then click on the "Quote" text that appears ? Then you get this:

Now i know. Thanks

@Koepel

Yes, that will help. I forgot what the minimal value is.

Yeah, happened what patmax describe in previous post probably. For more sensors we need -~1k resistors.

@Koepel

I seriously doubt that.
Can you put one in boiling water ?
The counterfeit DS18B20 can go up to 70 or 80°C, the real ones have no problem at all with 100°C.
The counterfeit DS18B20 start to struggle with a long wires, the real ones not so much.

Oh yeah they are real ones, i tested with boiled water and got 99,8 in serial com on my kettle.

@Koepel

I made better drawings in kindergarten, but I think it shows the long wires with sensor along it, or a star-configuration with the Arduino board as a spider in the middle of the web:

Hmm. I understand the first one, but the second the connections seems like first. I try to find in google but can't find any comparation of this 2 types connections. now i'm curious.

Anyway thanks for kind help