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by AndrewS
Wed Sep 03, 2014 1:41 am
Forum: Beginners
Topic: NOOBS OS selection input device
Replies: 4
Views: 933

Re: NOOBS OS selection input device

is it possible to select the OS in the NOOBS OS selection screen with anything else than keyboard/mouse? At the moment, no. But as others have already said, feel free to create a new request for it https://github.com/raspberrypi/noobs/issues (I guess https://github.com/raspberrypi/noobs/issues/128 ...
by AndrewS
Wed Sep 03, 2014 1:14 am
Forum: HATs and other add-ons
Topic: Pi B+ ID EEPROM: Multiple HATs, multiple EEPROMs?
Replies: 26
Views: 11932

Re: Pi B+ ID EEPROM: Multiple HATs, multiple EEPROMs?

technix wrote:Some HATs are stackable...
Nope. The HAT specification says they're non-stackable; you're free to design boards to be stackable, you simply can't call them HAT boards.
by AndrewS
Wed Sep 03, 2014 1:11 am
Forum: HATs and other add-ons
Topic: GPIO values at boot
Replies: 3
Views: 1172

Re: GPIO values at boot

Have a look at http://www.raspberrypi.org/documentation/configuration/pin-configuration.md and http://www.raspberrypi.org/documentation/hardware/raspberrypi/README.md and the "Pull" column of http://elinux.org/RPi_BCM2835_GPIOs the voltage is too low to fully power the LED? The Pi's pins are all dig...
by AndrewS
Wed Sep 03, 2014 1:03 am
Forum: HATs and other add-ons
Topic: USB current capacity improvement
Replies: 11
Views: 3057

Re: USB current capacity improvement

If I change the R4 resistor, that is switched by the Q4 FET, from 39K to 15K, then the current limit (when max_usb_current=1 in the config file) should go up from 1.2A to about 2A. :shock: You've seen how small R4 is on the B+, right? Maybe it'd just be easier to use a different USB modem that's be...
by AndrewS
Wed Sep 03, 2014 12:50 am
Forum: Camera board
Topic: B+ Camera is not detected (workaround available)
Replies: 83
Views: 63881

Re: B+ Camera is not detected (workaround available)

And does lsmod show that i2c_bcm2708 is loaded?
by AndrewS
Wed Sep 03, 2014 12:32 am
Forum: General discussion
Topic: Car PC on/off using GPIO
Replies: 8
Views: 2800

Re: Car PC on/off using GPIO

Reading between the lines, I think you're saying that you've got a separate CarPC powered by this ATX PSU, and you merely want the Pi to act as an 'interface' between your car's ignition signals and the ATX PSU? Because a whole ATX-capability PSU is obviously over-specced for running just the Pi (a ...
by AndrewS
Wed Sep 03, 2014 12:11 am
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 191209

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

DirkS wrote:BTW: something like the cobbler is dead-easy to solder and would actually be a good little learning project :)
Indeed... http://www.raspberrypi.org/learn-to-sol ... rrie-anne/
by AndrewS
Wed Sep 03, 2014 12:09 am
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 191209

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

mad-hatter wrote:Hello W. H. Heydt,
I really wish I could find a trustworthy source for inexpensive 8GB microSD cards--not restricted to SanDisk
http://swag.raspberrypi.org/
Just overwrite! I've got a box of them, so far very reliable (9 months).
Yup :D
SwagStoreMicroSDs.jpg
Loadsa Cards
SwagStoreMicroSDs.jpg (56.16 KiB) Viewed 4541 times
by AndrewS
Tue Sep 02, 2014 11:56 pm
Forum: General discussion
Topic: Raspberry pi Camera Module tips needed
Replies: 19
Views: 2760

Re: Raspberry pi Camera Module tips needed

You haven't yet mentioned if you've checked that all your Pis are running up-to-date firmware :roll: What do the commands 'vcgencmd version' and 'uname -a' report on each of your Pis? Using a limited sample-set of just a single Raspberry Pi (with up-to-date firmware) and a single Pi camera, but taki...
by AndrewS
Tue Sep 02, 2014 11:33 pm
Forum: Camera board
Topic: B+ Camera is not detected (workaround available)
Replies: 83
Views: 63881

Re: B+ Camera is not detected (workaround available)

It seems the recently release 3.12.26 #707 does not require running the camerafix.sh hack after reboot -- at least that's the case on my B+ Are you sure? I just checked and even with 3.12.26+ #707 I still get the same behaviour as in http://www.raspberrypi.org/forums/viewtopic.php?p=594883#p594883 ...
by AndrewS
Tue Sep 02, 2014 12:01 am
Forum: Troubleshooting
Topic: Win32 Disk Imager write to smaller SD memory card
Replies: 26
Views: 48614

Re: Win32 Disk Imager write to smaller SD memory card

What I finally tried was to use Windows Copy to copy my 32Gb back to a new file (I did this so I could experiment with the complex methods). The original filesize was 31,166,976 Kb but the copy was 19,892,224Kb. I thought this was a Copy error so I did it again. Same result. Got no idea what was go...
by AndrewS
Mon Sep 01, 2014 11:54 pm
Forum: Automation, sensing and robotics
Topic: 0V to 10V output from the RPi
Replies: 25
Views: 13437

Re: 0V to 10V output from the RPi

It's so funny, but my intention is to use a temp probe to regulate the fan speed. Less funny, but more useful. :mrgreen: Here's something similar http://raspi.tv/2014/temperature-control-with-raspio-duino-or-how-to-protect-your-pipes (except he's obviously heating things up, whereas you'll be cooli...
by AndrewS
Mon Sep 01, 2014 11:41 pm
Forum: General discussion
Topic: Camera Module (Video) In Tkinter ?????
Replies: 15
Views: 12870

Re: Camera Module (Video) In Tkinter ?????

If you're using Python with the Raspberry Pi camera, you'll find it much easier to just use http://picamera.readthedocs.org/en/release-1.7/ than to try calling the raspivid program using the subprocess module...
by AndrewS
Mon Sep 01, 2014 11:30 pm
Forum: Camera board
Topic: Circular buffer functionality
Replies: 29
Views: 16694

Re: Circular buffer functionality

Is there a way to built in elementary logic into the new buffer option to create a trigger to save the circular buffer if the video frames change significantly? A motion trigger, without using an external PIR, or audio? I would like to implement this at 90 fps/VGA video mode. It might be possible t...
by AndrewS
Mon Sep 01, 2014 11:04 pm
Forum: HATs and other add-ons
Topic: Extra SD card HAT?
Replies: 11
Views: 4194

Re: Extra SD card HAT?

I believe that this is the 3.2-only driver for the secondary SD interface that mimi123 was referring to https://github.com/raspberrypi/linux/blob/rpi-3.2.27/drivers/mmc/host/bcm2708_mci.c And just for comparison, this is the driver for the primary SD interface from the same kernel tree https://githu...
by AndrewS
Mon Sep 01, 2014 10:27 pm
Forum: HATs and other add-ons
Topic: Extra SD card HAT?
Replies: 11
Views: 4194

Re: Extra SD card HAT?

Well, actually, if we're doing 4-bit SD on the regular card, we already have the driver -- it's in the kernel. I mucked with that on an old white BeagleBone. The caveat is that we'd need two GPIO's for a card detect and write protect (the latter I think we can get away with). I'd have to research t...
by AndrewS
Mon Sep 01, 2014 10:16 pm
Forum: HATs and other add-ons
Topic: Flat ribbon display header
Replies: 6
Views: 5989

Re: Flat ribbon display header

A "flat ribbon cable" is more or less the PCB equivalent of http://www.screwfix.com/p/5a-terminal-s ... kpid=60804 ;)
by AndrewS
Mon Sep 01, 2014 10:13 pm
Forum: Compute Module
Topic: What is time schedule for the Compute Modules availability
Replies: 40
Views: 10090

Re: What is time schedule for the Compute Modules availabili

Feel free to direct any further questions you have to me regarding RS and the PI range, I am the RS inventory representitive for Raspberry Pi and all new technologies and want to help with any questions or frustrations you may have regarding RS. Hi Liam, Could you also have a look at http://www.ras...
by AndrewS
Mon Sep 01, 2014 10:11 pm
Forum: Compute Module
Topic: How to get a 2nd Camera Adapter Board?
Replies: 32
Views: 10011

Re: How to get a 2nd Camera Adapter Board?

However I suspect that there are only a small number of us interested in 2 cameras, so all it would take is either RS or Farnell to "man up" and produce a small number - probably less than a couple of hundred and the first to do so will get fame and glory and praise from the community... Yeah, sinc...
by AndrewS
Mon Sep 01, 2014 9:47 pm
Forum: General discussion
Topic: The Raspberry Pi Model B+ Q&A thread
Replies: 388
Views: 191209

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

Have had problems with the SanDisk microSD 32GB card. There's no such thing as "the" SanDisk microSD 32GB card - all manufacturers sell a dizzying variety of cards of different sizes / classes / sub-brands / prices :? Can someone recommend a card that works well with the B+? I was looking a Kingsto...
by AndrewS
Fri Aug 29, 2014 3:18 pm
Forum: HATs and other add-ons
Topic: Flat ribbon display header
Replies: 6
Views: 5989

Re: Flat ribbon display header

Details of a very early prototype here http://raspi.tv/2014/raspberry-pi-offic ... pe-preview
by AndrewS
Fri Aug 29, 2014 2:37 pm
Forum: Compute Module
Topic: How to get a 2nd Camera Adapter Board?
Replies: 32
Views: 10011

Re: How to get a 2nd Camera Adapter Board?

My email to RS finally filtered through to the right person, and I got this reply:
RS are not listing the camera adaptor boards I would suggest going directly to the Raspberry pi Foundation
by AndrewS
Fri Aug 29, 2014 2:32 pm
Forum: Compute Module
Topic: Altium or Eagle File for Compute IO
Replies: 5
Views: 5476

Re: Altium or Eagle File for Compute IO

However the CM IO Board is HUGE! DevKits always are, in order to expose all of the available features ;) So I would like to create a smaller CM IO. Is there anything in the market available already? Well there's http://www.raspberrypi.org/forums/viewtopic.php?f=98&t=80708 which is currently still b...
by AndrewS
Thu Aug 28, 2014 1:17 am
Forum: General discussion
Topic: X11,GLES,EGL,Wayland/Weston,vc4,GPU,CPU,DMA,MMU for idiots?
Replies: 17
Views: 4930

Re: X11,GLES,EGL,Wayland/Weston,vc4,GPU,CPU,DMA,MMU for idio

I'm no expert in any of the areas you're asking about, but lots of it has already been discussed at various times on the forums... (of course finding that info again may be easier said than done!) As well as laboriously looking through the source code, lots of useful info can also be found in the wi...

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