Re: [Owfs-developers] DS2482-800: problem with long wire and DS18B20

2014-04-06 Thread Michael Markstaller
Well, during seven years of usage/testing, I found the DS248x I2C-busmasters to be the weakest available, especially with long wires.. Therefore I can only recommend to not use them outside a breadboard, a DS2490/9490 (and many others) do perform much better; Thats also the reason why I really do

Re: [Owfs-developers] DS2482-800: problem with long wire and DS18B20

2014-04-06 Thread Jan Sennesael
>Are you powering this HC-SR04 through the bus? If yes, how much current does it draw? This current has to flow back through the GND wire and >may lift the GND level on the far end on long, thin GND wires an substantial amount, creating communication problems. > >Kind regards > > Jan The HC-

Re: [Owfs-developers] DS2482-800: problem with long wire and DS18B20

2014-04-05 Thread Jan Kandziora
Am 02.04.2014 21:00, schrieb Jan Sennesael: > > The UTP is approximately 45m long, cat 5e. I am using wire nr 1/2 for > gnd/+5V and 4/5 for 1wire/gnd (hobbyboard pinout). The sensor worked without > problems on the tree setup (with a diy usb master), nothing else has > changed. > > The other pair