Re: [Owfs-developers] raspberry Pi and 1-wire

I've started to wonder about other improvements in mounting / housing the Rpi http://go.je/191 I've now got samples of DS2483R's which look like a great way to provide a low component count 1-wire adaptor. Thoughts about 1-wire & RPi welcome please. Stuart

Re: [Owfs-developers] raspberry Pi and 1-wire

Dnia 18-01-2012 o 10:52:59 Sven Geggus napisał(a): >> I believe that an i2c driver chip provides a more robust solution than >> simply bit banging a GPIO pin. > > It probably does, but for the sake of simplicity I think that many people > prefer a solution without SMD components. I think the m

Re: [Owfs-developers] raspberry Pi and 1-wire

On 18/01/12 12:35, p4trykx wrote: > I like it. I was thinking about DS2482-800 myself but that voltage level > was too much for my skills ;-) > > I was thinking about using Analog Devices I2C isolator ADUM1250 > http://www.analog.com/en/interface/digital-isolators/adum1250/products/product.html >

Re: [Owfs-developers] raspberry Pi and 1-wire

Dnia 18-01-2012 o 09:25:12 Stuart Poulton napisał(a): > I've had a go at designing a RaspberryPi 1-wire breakout board, details > here > > http://go.je/18v > > Happy to take any feedback, main constraint was keeping the size smaller > than 5x5cm (allows for cheaper productio

Re: [Owfs-developers] raspberry Pi and 1-wire

On 18/01/2012 09:07, Sven Geggus wrote: > Stuart Poulton wrote: > >> Happy to take any feedback > > Why I2C? AFAIK the w1-gpio-custom Kernel driver does provide a 1-wire > Interface on any GPIO Pin which provides w1 compatible Voltage and owfs can > sit on top of this. So at best we will not need

Re: [Owfs-developers] raspberry Pi and 1-wire

Stuart Poulton wrote: > Ok, firstly GPIO's on the RPi are 3v3 not 5v so not suited to longer > distance, there is no buffering or protection present. 3.3V to 5V converters are not that much of a problöem. One could even use an Optocoupler for galvanic isolation. > I believe that an i2c driver

Re: [Owfs-developers] raspberry Pi and 1-wire

Ok, firstly GPIO's on the RPi are 3v3 not 5v so not suited to longer distance, there is no buffering or protection present. I believe that an i2c driver chip provides a more robust solution than simply bit banging a GPIO pin. Stuart On 18/01/12 09:07, Sven Geggus wrote: > Stuart Poulton wrote:

Re: [Owfs-developers] raspberry Pi and 1-wire

Not sure why you wouldn't want to have the benefits of running OWFS on the RPi itself ? On 18/01/12 09:03, Roberto Spadim wrote: > we could use rspberrypi as a ethernet-serial proxy, and execute owfs > at server side for example > > 2012/1/18 Roberto Spadim : >> why not ds2480b+? with uart or usb-

Re: [Owfs-developers] raspberry Pi and 1-wire

Because I felt that i2c offered more options, and keeps the serial port free for things that might be serial only. On 18/01/12 09:02, Roberto Spadim wrote: > why not ds2480b+? with uart or usb-uart interface? > > 2012/1/18 Stuart Poulton : >> I've had a go at designing a RaspberryPi 1-wire breakou

Re: [Owfs-developers] raspberry Pi and 1-wire

Stuart Poulton wrote: > Happy to take any feedback Why I2C? AFAIK the w1-gpio-custom Kernel driver does provide a 1-wire Interface on any GPIO Pin which provides w1 compatible Voltage and owfs can sit on top of this. So at best we will not need any external Hardware at all. I think Raspberry Pi

Re: [Owfs-developers] raspberry Pi and 1-wire

we could use rspberrypi as a ethernet-serial proxy, and execute owfs at server side for example 2012/1/18 Roberto Spadim : > why not ds2480b+? with uart or usb-uart interface? > > 2012/1/18 Stuart Poulton : >> I've had a go at designing a RaspberryPi 1-wire breakout board, details here >> >> http:

Re: [Owfs-developers] raspberry Pi and 1-wire

why not ds2480b+? with uart or usb-uart interface? 2012/1/18 Stuart Poulton : > I've had a go at designing a RaspberryPi 1-wire breakout board, details here > > http://go.je/18v > > Happy to take any feedback, main constraint was keeping the size smaller > than 5x5cm (allows fo

Re: [Owfs-developers] raspberry Pi and 1-wire

I've had a go at designing a RaspberryPi 1-wire breakout board, details here http://go.je/18v Happy to take any feedback, main constraint was keeping the size smaller than 5x5cm (allows for cheaper production of prototypes) Cheers Stuart

Re: [Owfs-developers] raspberry Pi and 1-wire

uhmmm nice 2012/1/12 Sven Geggus : > Phil White wrote: > >> Now, I have never (successfully) done any cross compilation. >> Could someone start on a HOWTO for dummies for this device - or, better >> yet, could we have an optimised, static binary available for download? > > It is almost certainly

Re: [Owfs-developers] raspberry Pi and 1-wire

Phil White wrote: > Now, I have never (successfully) done any cross compilation. > Could someone start on a HOWTO for dummies for this device - or, better > yet, could we have an optimised, static binary available for download? It is almost certainly possible to nativly compile owfs on the devic

Re: [Owfs-developers] raspberry Pi and 1-wire

download pre compiled binaries :) they work nice crosscompille is better you add a virtual machine to your x86 pc, and configura a linux distro with only gcc crosscompiller this works better and execute compillation like a 'normal' compile with just ./configure --arch option 2012/1/12 Phil Whi

Re: [Owfs-developers] raspberry Pi and 1-wire

I know this is rather premature - however... When these go on general sale, I suspect that they might be rather popular. I will be getting one, specifically for 1-wire stuff. Now, I have never (successfully) done any cross compilation. Could someone start on a HOWTO for dummies for this device -

Re: [Owfs-developers] raspberry Pi and 1-wire

Dnia 10-01-2012 o 15:48:25 Nick napisał(a): > On 05/01/2012 16:31, Pascal Baerten wrote: >> I'm also looking at this nice device for using with owfs. I certainly >> let >> you know when I got a unit... !!!They started production!!! http://www.raspberrypi.org/archives/509 Looking how many peo

Re: [Owfs-developers] raspberry Pi and 1-wire

On 05/01/2012 16:31, Pascal Baerten wrote: > I'm also looking at this nice device for using with owfs. I certainly let > you know when I got a unit... > the 3.3v is not a real issue and could be solved with some basic > components. (resistor and transistor.) > > Pascal If you've got £3,500 (yes 3.

Re: [Owfs-developers] raspberry Pi and 1-wire

I'm also looking at this nice device for using with owfs. I certainly let you know when I got a unit... the 3.3v is not a real issue and could be solved with some basic components. (resistor and transistor.) Pascal 2012/1/4 Patryk > Dnia 04-01-2012 o 20:45:41 Sven Geggus > napisał(a): > > > If

Re: [Owfs-developers] raspberry Pi and 1-wire

Dnia 04-01-2012 o 20:45:41 Sven Geggus napisał(a): > If there are GPIO pins there is probably a software only solution (no > Interface chip needed). > > AFAIK the w1 kernel driver (which is supported by owfs) already has a > GPIO Mode. Here's a post about GPIO of R-Pi http://www.raspberrypi.

Re: [Owfs-developers] raspberry Pi and 1-wire

p4trykx wrote: > Maybe someone more advanced in electronics and 1-wire could ask him about > it there? I see and option that there would be an uart port(ds2480b) or > i2c for DS2482-800 connected directly to Pi? Or am I getting it all wrong? If there are GPIO pins there is probably a softwar

Re: [Owfs-developers] raspberry Pi and 1-wire

On Fri, Dec 30, 2011 at 12:44 PM, p4trykx wrote: > I've been looking at the Raspberry Pi and I've found that they will also > offer an expansion board with more GPIOs. I wonder if there's some option > use this board as a 1-wire master or connect some Maxim/Dallas master to > it. I see that the cr