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by kaos
Mon Mar 07, 2016 12:43 pm
Forum: Advanced users
Topic: Documentation bugs: RPi2&3 GPIO electrical specs
Replies: 133
Views: 17670

Re: Documentation bugs: RPi2&3 GPIO electrical specs

I would like to second this request, and am indeed glad that it is being looked into. Yes, we can, as witnessed by the horde of circuits published, get things working with the GPIO. But Graham is perfectly correct that it currently involves considerable guesswork and premature optimization for thing...
by kaos
Wed Aug 26, 2015 6:14 pm
Forum: Off topic discussion
Topic: "Remote Access SFTP" document link to malware
Replies: 26
Views: 4035

Re: "Remote Access SFTP" document link to malware

I had some trouble confirming this. When I use chrome, no matter what I do, I always get the clean download. However, using internet explorer (do people actually do that?) does indeed use the sourceforge malware installer. At least one or two individuals, I'm reliably informed :o As for myself, I w...
by kaos
Wed Aug 26, 2015 8:57 am
Forum: Off topic discussion
Topic: "Remote Access SFTP" document link to malware
Replies: 26
Views: 4035

Re: "Remote Access SFTP" document link to malware

Yep, that is the clean installer. The first (and recommended) link in this page, https://filezilla-project.org/download.php?type=client , will download something called "FileZilla_3.exe", which is a bundle installer. That page is where you are taken if you click on the "Download FileZilla client" bu...
by kaos
Tue Aug 25, 2015 9:06 pm
Forum: Off topic discussion
Topic: "Remote Access SFTP" document link to malware
Replies: 26
Views: 4035

Re: "Remote Access SFTP" document link to malware

Thank you, I'll give it a try.

--
Best regards,
Kári
by kaos
Tue Aug 25, 2015 8:37 pm
Forum: Off topic discussion
Topic: "Remote Access SFTP" document link to malware
Replies: 26
Views: 4035

Re: "Remote Access SFTP" document link to malware

The links do go to SourceForge, but if you click the nice friendly "Download FileZilla Client" button, and on the next page, the equally nice and prominent "Windows 64-bit, Filezilla 3.13 etc. (Recommended)" link you will get a crapware bundle ! So this particular pile of crap is courtesy of Filezil...
by kaos
Fri Apr 03, 2015 10:55 am
Forum: General discussion
Topic: What happened to my Pi?
Replies: 37
Views: 3934

Re: What happened to my Pi?

As pointed out above, this is the USB hub and ethernet chip, so overclocking shouldn't affect it. I'm wondering more about an errant power spike on either USB or ethernet connections. I hope nobody has been running around with an etherkiller at your place? Or, more prosaically, a failed power suppy,...
by kaos
Thu Aug 21, 2014 8:59 am
Forum: General discussion
Topic: regarding power supply...
Replies: 10
Views: 1685

Re: regarding power supply...

I will admit that I have some preference for the NewIT and Adafruit units because they don't have a fixed cable and therefore are not limited to devices with microUSB power connectors. Actually, I think the foundation made the right decision by choosing a supply with a fixed cable, the reason being...
by kaos
Tue May 27, 2014 9:20 am
Forum: Camera board
Topic: powering the pi and camera
Replies: 6
Views: 1608

Re: powering the pi and camera

How do you power the pi and camera? Do you just use the power to micro usb, or do you go right to gpio pins? I went with the gpio for my camera setup, mostly for convenience. If you do, remember to use a fuse or other overcurrent protection, as you will be bypassing Raspi's own self-resetting fuse,...
by kaos
Sun May 11, 2014 1:59 pm
Forum: Camera board
Topic: CME -x postponed?
Replies: 56
Views: 15888

Re: CME -x postponed?

with the MS word the minimum absolute For one moment I wondered what Microsoft's word processor had to do with this :shock: , and then realized that MS meant most significant in this case :lol: . vector of (-2, 8) Sorry if it's a stupid question, but what kind of vector are we talking about here? T...
by kaos
Tue Apr 29, 2014 8:40 am
Forum: Camera board
Topic: Camera showing blank screen
Replies: 9
Views: 5153

Re: Camera showing blank screen

To isolate the problem, if you have remote access to the Pi, you can log on, kill any recording and streaming processes, and try a simple raspistill or raspivid. If you get good images that way, your hardware is okay and you should look closer at your streaming route. If not, I guess there isn't muc...
by kaos
Sat Feb 22, 2014 10:07 am
Forum: Camera board
Topic: camera video play back?
Replies: 4
Views: 7369

Re: camera video play back?

Not quite. For playback at normal speed, the fps settings in the raspivid and MP4Box commands should be the same. Also I understand that, as yet, raspivid records at max 30 fps. so the command in your original post would not give you the output you expect. 60 fps is being worked on though. -- Regard...
by kaos
Tue Dec 31, 2013 8:20 am
Forum: Camera board
Topic: Pi camera stream over 5.8ghz ?
Replies: 5
Views: 3891

Re: Pi camera stream over 5.8ghz ?

A quick Google tells me that this TX5823 is a video/audio transmitter, that seems to take a single wire "video" (presumably composite video) as input. The quick answer to your question is, yes, you should be able to connect the composite video out from the Raspi to the transmitter, but you will be l...
by kaos
Thu Dec 26, 2013 10:49 am
Forum: Camera board
Topic: streaming pi camera works only sometimes
Replies: 1
Views: 1280

Re: streaming pi camera works only sometimes

Are you sure the first raspivid command had terminated properly before you executed the second? The MMAL errors suggest that you are trying to run two raspivid commands concurrently, which cannot be done. Either that, or the first command crashed in such a way that resources were not properly releas...
by kaos
Wed Nov 13, 2013 7:15 pm
Forum: Camera board
Topic: Firmware upgrade stops cam?
Replies: 27
Views: 16452

Re: Firmware upgrade stops cam?

Voltage glitches lasting milli- or even microseconds, can mess up electronics, and you are correct that you won't see such glitches on a normal multimeter, but filtering such glitches (as long as they are not too excessive) is what smoothing capacitors (C3 on the Raspi and probably a much larger one...
by kaos
Tue Nov 05, 2013 12:54 pm
Forum: Camera board
Topic: Problems with camera board
Replies: 13
Views: 2414

Re: Problems with camera board

Not that I've had any power supply problems personally, but judging from the various posts in this forum, I suspect that this is not only a question of extra power required, but also that the camera module is more sensitive to low voltage than the Raspi itself. As Shuckle pointed out, the Raspi seem...
by kaos
Thu Oct 24, 2013 12:25 pm
Forum: Camera board
Topic: Camera board hanging with red light on
Replies: 19
Views: 4030

Re: Camera board hanging with red light on

timhunderwood wrote:I have checked the connections ( and reconnected them) to both the pi and the camera multiple times and they seem very secure....
Did you also check the little connector on the camera board itself (usually (always?) marked "sunny")?
by kaos
Mon Oct 14, 2013 7:58 pm
Forum: Camera board
Topic: Driver for camera module not found
Replies: 22
Views: 12513

Re: Driver for camera module not found

Hmm, that is on the low side, and actually outside the oft quoted 5V +/- 5% TTL specification, if only just. I'd be mildly surprised though, if it turns out the camera module / raspi is that finicky. Still, as you have explored pretty much all other possibilities, short of a broken module, it might ...
by kaos
Mon Oct 14, 2013 9:16 am
Forum: Camera board
Topic: Driver for camera module not found
Replies: 22
Views: 12513

Re: Driver for camera module not found

2. I also did sudo apt-get update and sudo apt-get upgarde, but even that didnt help. Did you also do sudo rpi-update ? I think that is the one that updates the camera application. 4. So now i suspect the issue is with power hence i enable the camera LED which i had earlier disable the camera LED. ...
by kaos
Thu Oct 03, 2013 10:00 am
Forum: Camera board
Topic: Metering modes
Replies: 8
Views: 3139

Re: Metering modes

I haven't seen any detailed definition, but going by the terminology I would think that "spot", or possibly "matrix", is what you are after. "Spot" should calculate exposure based on the center of the image only. "Matrix" should calculate the exposure from several spot readings, and if it is cleverl...
by kaos
Tue Sep 17, 2013 9:36 am
Forum: Camera board
Topic: Camera number 3!
Replies: 24
Views: 5048

Re: Camera number 3!

I would suggest that for working with the camera, a 1A supply is the practical minimum, at least if you are using any other peripherals at the same time. And if you are using particularly power hungry peripherals (f.x. some types of WiFi adapters) you may need more. Of course, power supply problems,...
by kaos
Sun Sep 15, 2013 10:56 pm
Forum: Camera board
Topic: piipcam
Replies: 4
Views: 1636

Re: piipcam

Second part of the writeup is finally up at http://ystaskemma.is/?p=224&lang=en. This deals with the hardware assembly, excluding the housing. Next part will deal with software setup and testing.

--
Best regards, Kári.
by kaos
Tue Aug 27, 2013 11:53 pm
Forum: Camera board
Topic: Post your live webcams using CSI camera board
Replies: 9
Views: 3980

Re: Post your live webcams using CSI camera board

Here is mine: http://kari.wifi.is:8081

--
Best regards, Kári.
by kaos
Tue Aug 27, 2013 11:49 pm
Forum: Camera board
Topic: piipcam
Replies: 4
Views: 1636

Re: piipcam

First part of the write-up is now ready at http://ystaskemma.is/?p=180&lang=en This part is mostly a components list; the next one should be a bit juicier, with some actual assembly instructions. Meanwhile, if anybody was trying to look at the camera last week and saw only black frames, my apologies...
by kaos
Wed Aug 21, 2013 8:33 pm
Forum: Camera board
Topic: .
Replies: 6
Views: 3619

Re: avconv reads h264 camera stream but doesn't write fps

Did you try MP4Box, part of the GPAC package? I'm very happy with it, both fast and simple to use. You have to let it know the framerate you shot the video at though; as towolf pointed out there are no timestamps in the h264 stream.

--
Regards, Kári.
by kaos
Sun Aug 18, 2013 10:58 am
Forum: Camera board
Topic: piipcam
Replies: 4
Views: 1636

piipcam

So, I've been making myself a webcam based on the Raspberry Pi and camera module. I hope to have a proper write-up ready in the next few days, but in the meantime the end result can be viewed at http://kari.wifi.is:8081 . Any comments, bug reports, etc. would be most welcome. The default user interf...

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