Yes. It has happened a couple more times. It does seem to be the wiring/devices rather than the adapter. The first time it happened today I disconnected the longest of the temperature sensors and wired that into a separate bus on the RPI3, then it happened again, so I disconnected the second sensor, so now that branch just has a HobbyBoards 8 channel I/O on it. So far it is still running OK, but I only changed it about an hour ago.

I think I remember seeing somewhere that at low level owfs tries to read and will retry a few times if there is a problem. Is there any way to see this info? It would be really useful to be able to see if it is struggling to read.

Thanks
Mick

On 15/11/13 14:54, Paul Alfille wrote:
Is there an pattern to how you lose the devices? Same branches each time?


On Fri, Nov 15, 2013 at 6:41 AM, Mick Sulley <m...@sulley.info <mailto:m...@sulley.info>> wrote:

    I am running a Raspberry Pi with Sheepwalk RPI3 and RPI3a to give me 8
    channels, of which I use 6.  Running Raspian and owfs-2.9p0

    I am loosing one of the channels after a while, typically after 20
    hours
    or so.  I have checked the voltages and all looks fine but none of the
    devices appear in Nautilus, the bus is there but looks like nothing
    plugged in to it.  The devices re-appear if I unplug and plug into
    another bus.

    My topology is less than perfect but the wiring runs are not very
    long,
    the problem run is about 2M to a box with a HobbyBoards 8channel I/O,
    then 2 DS18S20 sensor, each about 4M away in opposite directions.

    Is there any way to investigate this further?  There seems to be
    useful
    info under bus.X/interface/statistics/ but I don't know what they
    mean,
    is there any info out there that may help?

    Cheers
    Mick

    
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