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by GadgetUK
Mon Jul 14, 2014 6:34 pm
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 210515

Re: The Raspberry Pi Model B+ Q&A thread

dom wrote: less. I measure the B having a USB port overhang of 7mm.
The B+ has a USB port overhang of 2mm (and ethernet is the same).
Great, I know it's a detail but crucial. The current drawing only has measurement to centers no connector widths or heights.
by GadgetUK
Mon Jul 14, 2014 6:15 pm
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 210515

Re: The Raspberry Pi Model B+ Q&A thread

One thing missing from the dimensions is the amount the connectors overhang the end of the PCB ?
by GadgetUK
Mon Jul 14, 2014 9:52 am
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 210515

Re: The Raspberry Pi Model B+ Q&A thread

The Geek Gurl video in your blog post announcing the B+ mentions that the built-in audio is "improved". Is this correct? That is correct, yes. Hows the i2c eeprom for board function going to be used, will there be config files for the bootloader etc? This is already under discussion here http://www...
by GadgetUK
Mon Jul 14, 2014 9:32 am
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 210515

Re: The Raspberry Pi Model B+ Q&A thread

Hows the i2c eeprom for board function going to be used, will there be config files for the bootloader etc?

This is already under discussion here http://www.raspberrypi.org/forums/viewt ... 44&t=81733
by GadgetUK
Mon Jul 14, 2014 7:20 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Pi B+ ID_SD and ID_SC
Replies: 6
Views: 20628

Re: Pi B+ ID_SD and ID_SC

Thats my understanding, but the devil will be in the detail.

I'm making the assumption that it uses the P5 i2c pins
by GadgetUK
Mon Jul 14, 2014 7:14 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Pi B+ ID_SD and ID_SC
Replies: 6
Views: 20628

Pi B+ ID_SD and ID_SC

Does anyone have more info on ID_SD and ID_SC PINS: These pins are reserved for ID EEPROM. At boot time this I2C interface will be interrogated to look for an EEPROM that identifes the attached board and allows automagic setup of the GPIOs (and optionally, Linux drivers). DO NOT USE these pins for a...
by GadgetUK
Wed Jun 27, 2012 6:13 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 169386

Re: kernel patch for Dallas 1-wire interface

Hi Am i right in thinking that the solution being discussed uses a GPIO pin direct, what is wrong with using the DS2482 I2C-to-1 wire or equivalent . Is it not possible to use the DS 2482 chip to guarantee the 1-wire timing and interface electricla standards are complied with, sorry if I have misun...
by GadgetUK
Tue Jun 19, 2012 6:24 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 169386

Re: kernel patch for Dallas 1-wire interface

As I mentioned previously in the thread
http://www.raspberrypi.org/phpBB3/viewt ... 177#p88177
You may also want to consider using one of the i2c connected 1-wire bus masters.
by GadgetUK
Sat Jun 16, 2012 3:58 pm
Forum: Automation, sensing and robotics
Topic: Owfs (1-wire) installation/compiling instructions needed
Replies: 9
Views: 25655

Re: Owfs (1-wire) installation/compiling instructions needed

Just to echo aideen's work, I've put some notes on my experiences with 1-wire on my blog

http://raspberrypi.homelabs.org.uk/category/1-wire/
by GadgetUK
Thu May 31, 2012 8:41 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 169386

Re: kernel patch for Dallas 1-wire interface

Currently I am running the sensors over about 2-metres of cable and they are working fine. Stable for all the results I have logged so far anyways. Short lengths are probably fine, the other thing to consider is with 3.3v you are close to hitting the minimum voltage for the DS18B20's due to voltage...
by GadgetUK
Thu May 31, 2012 8:58 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 169386

Re: kernel patch for Dallas 1-wire interface

Not sure how far you're intending on pushing this in terms of number of sensors / length of cable. But I'd recommend the use of a 'proper' 1-wire driver chip. What software are you using ? I've been successful in using OWFS, with an i2c 1-wire bus master see my blog post http://raspberrypi.homelabs....
by GadgetUK
Thu May 31, 2012 6:40 am
Forum: Media centres
Topic: Squeezeslave on RaspberryPi
Replies: 35
Views: 15112

Re: Squeezeslave on RaspberryPi

Thomas,

Great work, can you provide details of how you built squeezeslave ? How stable are you finding it ?
by GadgetUK
Fri May 25, 2012 7:16 am
Forum: Media centres
Topic: Squeezeslave on RaspberryPi
Replies: 35
Views: 15112

Re: Squeezeslave on RaspberryPi

If anyone is interested I'd be willing to look at a putting together an SD card with all the required software setup and ready to go.
You'd just need to add a RaspberryPi and squeezeserver.
by GadgetUK
Thu May 24, 2012 11:58 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Pi and Arduino
Replies: 24
Views: 12036

Re: Pi and Arduino

Gert, I've got the ArduinoIDE working on the Pi using a USB connection, details here http://raspberrypi.homelabs.org.uk/raspberrypi-the-arduino-development-tool/ If you have a gertboard available, I'd be willing to test to see if it works. I've got details of changes required to support 12MHz, altho...
by GadgetUK
Tue May 22, 2012 7:28 pm
Forum: Automation, sensing and robotics
Topic: ArduinoIDE
Replies: 0
Views: 1594

ArduinoIDE

Hi Folks,

I've just finished a very quick write up of what needed to get the ArduinoIDE working on your RaspberryPi

http://go.je/19b
by GadgetUK
Sun May 20, 2012 8:56 pm
Forum: Media centres
Topic: Squeezeslave on RaspberryPi
Replies: 35
Views: 15112

Re: Squeezeslave on RaspberryPi

Ok.

Still seems a little flaky on occasions.

More tests required.
by GadgetUK
Sun May 20, 2012 4:29 pm
Forum: Other projects
Topic: Linux device drivers for Rapberry Pi on-board I/O
Replies: 97
Views: 60524

Re: Linux device drivers for Rapberry Pi on-board I/O

Time for an update. bootc has completed his driver, and I can confirm it works with my test case of 3 off 1-wire i2c bus masters. root@...# time /opt/owfs/bin/owread /uncached/bus.0/28.5B8A57030000/type DS18B20 real 0m0.023s root@...# time /opt/owfs/bin/owread /uncached/bus.0/28.5B8A57030000/tempera...
by GadgetUK
Sat May 19, 2012 3:40 pm
Forum: General discussion
Topic: No crumb trail
Replies: 21
Views: 8171

No crumb trail

Hi,

Having a crumb trail would greatly ease navigation within the forum, especially once you're deep into a thread.
by GadgetUK
Sat May 19, 2012 3:37 pm
Forum: Other projects
Topic: Linux device drivers for Rapberry Pi on-board I/O
Replies: 97
Views: 60524

Re: Linux device drivers for Rapberry Pi on-board I/O

Ok.

No joy here

Code: Select all

root@berry:~# ls /dev/i2c*
ls: cannot access /dev/i2c*: No such file or directory
root@berry:~# modprobe i2c
root@berry:~# ls /dev/i2c*
/dev/i2c
root@berry:~# i2cdetect -l
Any thoughts ?
by GadgetUK
Sat May 19, 2012 8:57 am
Forum: Other projects
Topic: Linux device drivers for Rapberry Pi on-board I/O
Replies: 97
Views: 60524

Re: Linux device drivers for Rapberry Pi on-board I/O

Frank, great work looking forward to trying this out, hopefully sometime today.
by GadgetUK
Fri May 18, 2012 3:45 pm
Forum: Media centres
Topic: Squeezeslave on RaspberryPi
Replies: 35
Views: 15112

Re: Squeezeslave on RaspberryPi

Wonder if the makefile in contrib has some more refined options.

So far the prebuilt seems to be working.
by GadgetUK
Fri May 18, 2012 12:23 pm
Forum: Media centres
Topic: Squeezeslave on RaspberryPi
Replies: 35
Views: 15112

Re: Squeezeslave on RaspberryPi

If you pull the code from SVN, there is a makefile as follows

makefile.linux26-armel-alsa-display
by GadgetUK
Fri May 18, 2012 12:12 pm
Forum: Media centres
Topic: Squeezeslave on RaspberryPi
Replies: 35
Views: 15112

Re: Squeezeslave on RaspberryPi

Thats interesting Paul, I had compiled from source, but I'll give the pre-compile a go.

One difference I was using the audio out rather than HDMI.
by GadgetUK
Thu May 17, 2012 9:17 pm
Forum: Automation, sensing and robotics
Topic: 1wire using GPIO?
Replies: 8
Views: 17428

Re: 1wire using GPIO?

Far better would be to use an i2c 1-wire bus master, I've just got these working, full details in my blog post here: http://go.je/iire

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