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by clicky
Tue Jun 01, 2021 9:36 am
Forum: General
Topic: DIP 56
Replies: 2
Views: 468

DIP 56

I know someone is going to ask it sooner or later :roll:

Any indications regarding through hole version, maybe?
by clicky
Tue May 25, 2021 2:41 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 1003
Views: 266193

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

I hope lack of (or lack of work on) 64bit version won't somehow hold back adoption of Pi4 as a real desktop computer. I caught myself successfully using it as a desktop computer for a while now (Pi4 with 4 and 8GB of RAM) and by default opting for 64bit OS for all new Raspberry Pi development (4x Pi...
by clicky
Thu May 20, 2021 10:59 am
Forum: General discussion
Topic: My KDE experience.
Replies: 8
Views: 1608

Re: My KDE experience.

I'm happy with my KDE on Pi: https://www.raspberrypi.org/forums/viewtopic.php?t=244171 Still using it in such configuration. It might be slightly slower at moments, but I am aware of load I put it on (with all the composing and transparency and underpowered CPU to handle it while other stuff like Id...
by clicky
Wed May 19, 2021 7:01 pm
Forum: General discussion
Topic: Introducing the "The Wind Tunnel" Cluster Case
Replies: 10
Views: 879

Re: Introducing the "The Wind Tunnel" Cluster Case

Really nice! Do you have some smart fan speed drivers? (software/hardware temp sensors and/or just reading nodes CPU temperatures) It almost makes sense for each fan to be driven separately by higher of two Pis CPU temperature... My cluster has separate Pimoroni's fans each driven with PWM dependin...
by clicky
Sun May 16, 2021 3:26 pm
Forum: Java
Topic: Building Portable Binaries for Single Board Computers with diozero and GraalVM
Replies: 6
Views: 2251

Re: Building Portable Binaries for Single Board Computers with diozero and GraalVM

Oh, well - tried :) Simple stuff as in your post (HelloWorld) compiles without any issues. This complex code - not so much: Error: Classes that should be initialized at run time got initialized during image building: io.netty.buffer.UnpooledHeapByteBuf the class was requested to be initialized at ru...
by clicky
Sun May 16, 2021 1:54 pm
Forum: Java
Topic: Building Portable Binaries for Single Board Computers with diozero and GraalVM
Replies: 6
Views: 2251

Re: Building Portable Binaries for Single Board Computers with diozero and GraalVM

Cool, thanks! :) BTW my 'desktop-pi' is with 8GB + 1TB SSD - and it works quite well (well - :roll: one needs more patience than, let's say MBP with only twice the memory and 2/3 times to CPU speed). There I'm happily using Eclipse (which works quite faster than IntelliJ) and PyCharm for Python (wel...
by clicky
Sun May 16, 2021 1:48 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 1003
Views: 266193

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Quick question or two (and apologies if it is well known fact - I did put some effort in trying to figure it out + find any resources here or elsewhere): wiringpi's /usr/bin/gpio doesn't work for me on Linux desktop-pi.thenet 5.10.33-v8+ #1415 SMP PREEMPT Fri Apr 30 15:53:26 BST 2021 aarch64 GNU/Lin...
by clicky
Wed May 12, 2021 10:07 am
Forum: Java
Topic: Building Portable Binaries for Single Board Computers with diozero and GraalVM
Replies: 6
Views: 2251

Re: Building Portable Binaries for Single Board Computers with diozero and GraalVM

For some unexplained reason I adopted 64bit version of Raspberry Pi OS as my 'standard' :roll: and I'm still suffering for that decision in various ways. But, my current project works perfectly well there. Maybe I could give GraalVM a go with LibGDX, too? I wouldn't mind having extra CPU cycles here...
by clicky
Mon May 10, 2021 1:23 pm
Forum: General discussion
Topic: Introducing the "The Wind Tunnel" Cluster Case
Replies: 10
Views: 879

Re: Introducing the "The Wind Tunnel" Cluster Case

Really nice! Do you have some smart fan speed drivers? (software/hardware temp sensors and/or just reading nodes CPU temperatures) It almost makes sense for each fan to be driven separately by higher of two Pis CPU temperature... My cluster has separate Pimoroni's fans each driven with PWM depending...
by clicky
Sat May 01, 2021 12:19 pm
Forum: General discussion
Topic: Low latency video?
Replies: 24
Views: 16897

Re: Low latency video?

The best I achieved was around 1-2s but that was with heavily tweaking size of the image and all on the local network. The moment it went outside of the network it jumped for another second or two. It was around 2-3s and just at the edge of playing board games over the network - one side was physica...
by clicky
Wed Apr 28, 2021 2:17 pm
Forum: General discussion
Topic: Please link to Raspberry PI OS 64 Bit Lite
Replies: 11
Views: 2560

Re: Please link to Raspberry PI OS 64 Bit Lite

Pardon my ignorance and I am just curious: is there a very good reason both are not here https://www.raspberrypi.org/software/operating-systems/ Of course with all disclaimers, warnings, etc... Or at least a link from there (or thereabout) to place where one can get them. I do understand they are be...
by clicky
Sat Apr 24, 2021 12:56 pm
Forum: Camera board
Topic: Capture speed/bandwidth v4l2 vs raspicam? [Solved]
Replies: 19
Views: 1778

Re: [Solved] - Capture speed/bandwidth v4l2 vs raspicam?

No, I have drawn blanks. I have no idea why wouldn't it work. Anyone?
by clicky
Sun Apr 18, 2021 8:01 pm
Forum: Camera board
Topic: Capture speed/bandwidth v4l2 vs raspicam? [Solved]
Replies: 19
Views: 1778

Re: [Solved] - Capture speed/bandwidth v4l2 vs raspicam?

Huh - I failed to get anything through glDebugMessageCallbackKHR (and apparently because there wasn't any error) but - I've managed to get an error from eglCreateImageKHR: EGL_BAD_DISPLAY! :)

At least I have something to continue digging around...
by clicky
Sun Apr 18, 2021 11:06 am
Forum: Camera board
Topic: Capture speed/bandwidth v4l2 vs raspicam? [Solved]
Replies: 19
Views: 1778

Re: [Solved] - Capture speed/bandwidth v4l2 vs raspicam?

Just quickly: $ diff other-compliance my-compliance 1,2c1,2 < 4l2-compliance SHA: not available, 32 bits < --- > v4l2-compliance SHA: not available, 64 bits > 9c9 < Driver version : 5.10.17 --- > Driver version : 5.10.27 So, at least that's pretty much fine. I've tried quickly to throw in your code ...
by clicky
Sat Apr 17, 2021 11:14 am
Forum: Camera board
Topic: Capture speed/bandwidth v4l2 vs raspicam? [Solved]
Replies: 19
Views: 1778

Re: [Solved] - Capture speed/bandwidth v4l2 vs raspicam?

Thank you both for a quick response :) So here it is what I've done so far: I've added V4L2_PIX_FMT_BGRX32 to linux headers similar to: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=293737&p=1774790&hilit=V4L2_PIX_FMT_BGRX32#p1774790 Been here https://www.raspberrypi.org/forums...
by clicky
Fri Apr 16, 2021 3:03 pm
Forum: Camera board
Topic: Capture speed/bandwidth v4l2 vs raspicam? [Solved]
Replies: 19
Views: 1778

Re: [Solved] - Capture speed/bandwidth v4l2 vs raspicam?

Huh - it seems that's a slightly bigger bite than I expected. To keep it simple, I just started with your code (@RedMarsBlueMoon) and did spend time trying to make it compile learning a thing or two in the process. Now it creates executable and having the latest kernel (and amended appropriate inclu...
by clicky
Wed Apr 14, 2021 7:17 am
Forum: Camera board
Topic: Capture speed/bandwidth v4l2 vs raspicam? [Solved]
Replies: 19
Views: 1778

Re: [Solved] - Capture speed/bandwidth v4l2 vs raspicam?

RedMarsBlueMoon wrote:
Tue Apr 13, 2021 9:55 pm
Yes I have my example code + instructions here, https://github.com/Fredrum/rpi_v4l2_tests

They are specific to my camera but might be useful for you.
Thank you very much - that's plenty I can play with! :D
by clicky
Tue Apr 13, 2021 11:52 am
Forum: General discussion
Topic: Is Raspberry PI ok after malware attack as long as SD card is changed?
Replies: 7
Views: 630

Re: Is Raspberry PI ok after malware attack as long as SD card is changed?

Hey there! I had a malware attack on my network, as long as I use a different Micro-SD card, my raspberypi is ok, right? Lets rephrase that as "I've had a malware attack on laptop, is it OK if I reformat the hard disk and re-install windows." The answer is the same. Strictly theoretically...
by clicky
Sun Apr 11, 2021 10:34 am
Forum: Camera board
Topic: Capture speed/bandwidth v4l2 vs raspicam? [Solved]
Replies: 19
Views: 1778

Re: [Solved] - Capture speed/bandwidth v4l2 vs raspicam?

Hi - that's pretty much what I put in front of myself as crazy project I would like to play with. Have you shared your code somewhere or could you, please, give me some pointers - where to start with? My ultimate goal is to get camera input into a texture in openGL so I can use shaders for further p...
by clicky
Tue Feb 09, 2021 3:28 pm
Forum: General
Topic: Pico as Pi peripheral
Replies: 31
Views: 3869

Re: Pico as Pi peripheral

It might be terribly, terribly slow but your Raspberry Pi could send a MicroPython script to the Pico and send/receive commands/data depending on the sensors attached. A bit like a smarter version of the old Firmata protocol, but less Arduino-centric. +1 It could do it at initialisation... I was th...
by clicky
Tue Feb 09, 2021 8:31 am
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 1003
Views: 266193

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

arildh wrote:
Tue Feb 09, 2021 7:07 am
Try this for problem 1. :

sudo alsamixer

- Then adjust the volume of all Soundcards with 'F6'.
I could recreate this problem by installing the latest 64bit image (sound ok) and then apt full-upgrade (problems as you describe above)
That's the trick. Thanks!
by clicky
Mon Feb 08, 2021 11:53 am
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 1003
Views: 266193

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Hm. I've updated to the latest version of 64bit OS (from quite a while ago) and noticed lower audio levels, too... Is something new introduced recently that could cause it?
by clicky
Fri Jan 22, 2021 5:45 pm
Forum: General
Topic: Pico as Pi peripheral
Replies: 31
Views: 3869

Re: Pico as Pi peripheral

@PiGraham - that was exactly my train of thought. Other bits I can see are: USB layer/protocol to fit the usecase RPi overlays to provide easy way to exposing /dev/adc1.., /dev/remote-gpio1.., /dev/remote-i2c1..,/dev/remote-SPI1... etc And finally a open source project with 'swiss knife' stile confi...
by clicky
Sat Jan 16, 2021 12:08 pm
Forum: Java
Topic: JAVA - What if method grabs lock then exits without calling monitor.leave()?
Replies: 7
Views: 1806

Re: JAVA - What if method grabs lock then exits without calling monitor.leave()?

Java has synchronized from more or less day one and, unlike many other solutions, it is the 'lowest level' synchronisation you can have in Java and that's definitively the easiest and safest to use. (is it the best solution to what you need - that's different question) All other solutions are just t...

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