Instability when connected with several real slaves

[kbfifi]

Instability when connected with several real slaves

[kbfifi]

Thank you for a great library. Very well done. Nice architecture!
I like to chime into this discussion. I think I have a slighly different issue but related to your comment. In short I created a DS1992 device based on this library. Works well with a dedicted master and only my Arduino Uno connected to pin 2 with the 1-wire bus master. Howeber when I moved my project to the target enviroment with several slaves I see that it disturbed the bus and almost all slaves disappear when using owdir.

Some questions related to this discussion:

1. So you mentioned that an analog pin should be used. Would that provide extra high impedance? To be clear my project is always powered on so no power snooping issue here.
2. You also mentioned a resistor in series What value?
3. I read something about presence signal not being send by this library? Can that be the issue here?

Thanks in advance!

[kbfifi]

Got everything working. To answer my own questions:

1. Yes analog pins have much higher impedance compared to digital inputs. However when the arduino pro mini is not powered it it still draws substantial power from the 1-wire bus. Not an issue in my case
2. Did not work for me. Tried several values (500, 1k, 2k)
3. Apeared not to be isuue

The real issue was a faulty power supply :-( Cost me 2 Arduino pro minis. Enfin all works now. I'm happy. The bus contains 6 real 18B20's 2 DS1992's based OnwireSlave project and 1 DS1992 based on this project