Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

On 30 April 2016 at 09:35, John Bass wrote: > OK, just had a read around the good old internet, and found other people with > the same issue, down to power yet again.. > > So popped another 1k in parallel thus 500ohms and now it works :-), but not > reliable :-( getting the odd 85 How long is t

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

Hello Colin, About 6 inches! I'm going to run a few more tests soon, as Jan does not seem to be able to reproduce the issue, there must be something wrong here. I will test the sensor with all three wires connected to make sure it has not gone south. John -Original Message- From: Col

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

On 1 May 2016 at 09:45, John Bass wrote: > Hello Colin, > > About 6 inches! It is probably not that the cable is too long then :) Just to check, when using in parasitic mode VDD and GND should be connected together on one wire, with DQ on the other. Colin > > I'm going to run a few more tests

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

Hello Colin, You got it, with a 1k resistor(which Jan recommended rather than a 4.7k) from VDD to DQ as the pull up.. I'm miffed as well... John -Original Message- From: Colin Law [mailto:clan...@gmail.com] Sent: 01 May 2016 10:06 To: OWFS (One-wire file system) discussion and help

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

OK.. put it back to a 3 wire connection, works fine... how very odd.. John -Original Message- From: Colin Law [mailto:clan...@gmail.com] Sent: 01 May 2016 10:06 To: OWFS (One-wire file system) discussion and help Subject: Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

On 1 May 2016 at 12:35, John Bass wrote: > Hello Colin, > > You got it, with a 1k resistor(which Jan recommended rather than a 4.7k) from > VDD to DQ as the pull up.. Not from VDD, from 3v to DQ. Colin > > I'm miffed as well... > > John > > -Original Message- > From: Colin Law [mailto:

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

Am 01.05.2016 um 13:42 schrieb John Bass: > OK.. put it back to a 3 wire connection, works fine... how very odd.. > As noted, it should work flawlessly in parasite-power mode. That's a function which is present for ten years. And it works with my Pi. DO you have an oscillocope at hand? Kind rega

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

Sorry yes, 3v rail -Original Message- From: Colin Law [mailto:clan...@gmail.com] Sent: 01 May 2016 13:59 To: OWFS (One-wire file system) discussion and help Subject: Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c On 1 May 2016 at 12:35, John Bass wrote: > Hello

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

That's going to be the next test... just need an hour... but it's sunny here in sussex, so in the garden I am :-) -Original Message- From: Jan Kandziora [mailto:j...@gmx.de] Sent: 01 May 2016 14:03 To: OWFS (One-wire file system) discussion and help Subject: Re: [Owfs-developers] Raspb

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

Am 01.05.2016 um 14:58 schrieb Colin Law: > On 1 May 2016 at 12:35, John Bass wrote: >> Hello Colin, >> >> You got it, with a 1k resistor(which Jan recommended rather than a 4.7k) >> from VDD to DQ as the pull up.. > > Not from VDD, from 3v to DQ. > Ah, Colin, you are a genius. Yes, that would

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c

That is the cct I have been using :-( Sent from my iPhone On 1 May 2016, at 14:32, Jan Kandziora mailto:j...@gmx.de> > wrote: Am 01.05.2016 um 14:58 schrieb Colin Law: > On 1 May 2016 at 12:35, John Bass > wrote: >> Hello Colin, >> >> You got it, with a 1k resistor

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c (119:11)

Date: Fri, 29 Apr 2016 22:14:03 +0200 From: Jan Kandziora j...@gmx.de ... schrieb John Bass: ... >> So Passive mode, /sys/bus/w1/DEVICE/temperature returns correct >> temperature, however owserver with owread return 85c, thus I would >> surmise that owserver is not handing passive devices correctl

Re: [Owfs-developers] Raspberry Pi Jessie owfs-3.1.p1 w1-driver = 85c (119:11)

Am 01.05.2016 um 22:12 schrieb Loren Amelang: > > If owserver uses "another transaction for activating the strong > pullup", I guess it must fail just like the w1 activation of the > pullup fails in my 2.8p15 Ubuntu distro version. Does it work by > telling w1 to set the pullup? Which in my old ver