Automation, sensing and robotics • Re: Maximum speed for a stepper motor.
100 rpm are 1.66 per second and 333 pulses per second with no microstepping. Python is quite slow, but there should be more possible. It depends, of course, on what the python code is doing between...
View ArticleCamera board • Re: object_detect_draw_cv Color Options?
Indeed, I think the images in that function are YUV420 format, but OpenCV generally has fairly limited support for that meaning it has to get treated as a "CV_8U" image which boils down to...
View ArticleGeneral discussion • Enabling power saver option in HMI display
I am Using Both HDMI 0 output and DSI 0 Output in my Raspberry CM4 i want to enable power saving option in my waveshare 5 inch HMI DSI Display Automatically turn off the display if it hasn't been used...
View ArticleTroubleshooting • Re: raspberry pi 3b low download speeds
What is the upload speed of the connection ?Code: Speedtest by Ookla Server: Orbital Net - London (id: 48354) ISP: PlusnetIdle Latency: 5.57 ms (jitter: 0.11ms, low: 5.43ms, high: 5.66ms) Download:...
View ArticleCamera board • Changing camera resolution
I'm trying to implement a digital zoom feature on the camera module 3 and would need to change the camera options to reduce the resolution sent from the camera.It works fine to change the settings...
View ArticleRaspberry Pi OS • Re: Trying to disable Wayland
gimp does not work under Wayland either.GIMP does work if you don't mind using the Beta from Flatpak, I use GIMP here under WaylandCode: flatpak install --user...
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Troubleshooting • Re: RPi 4 NVME over Network transfer speed issue
Problem solvedAll data was saved from the HDD, and the partition from NTFS was converted to EXT4. Now the speed of working with SMB over the network is close to maximum - about 1Gb/s. At the same...
View ArticleHATs and other add-ons • Re: Pi 5 Official Case with Active Cooler
Removed posts that regular posters should have known better than to write.Statistics: Posted by jamesh — Tue Mar 12, 2024 9:46 am
View ArticleTroubleshooting • Re: Entropy does not decrease?
On a Pi, the CRNG is fully initialised extremely early in boot - before the rootfs is mounted. The bootloader prefills 64 bytes of random data in the devicetree passed to the kernel, which the kernel...
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General discussion • Pi5 specific section in Documentation gone?
What happened to the Pi5 specific section in Documentation?Looks like Documentation will be prepared for upcoming new products like 5in/7in DSI display, CM5IO, CM5 and maybe even the monochrome global...
View ArticleRaspberry Pi 400 • Re: Is there going to be a Pi 500?
I thought this thread had died. It certainly should have.Is there going to be rain tomorrow?No reason fr the thread to die, so long as people are being polite to each other and raising points that...
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Advanced users • Re: Moving Linux Kernel to 6.6
Hi,Kernel 6.6 seem to have a memory leak.1) Put in place kernel 6.62) Revert back to kernel 6.1And i see the same today with official kernel 6.6.20Statistics: Posted by llevet — Tue Mar 12, 2024 9:57 am
View ArticleCamera board • Re: Changing camera resolution
Hi, if you look at something like rpicam-jpeg (here), the idiom for changing the actual sensor resolution/mode seems to involve stopping the camera (and encoder in your case), doing a "teardown", then...
View ArticleGeneral discussion • Re: Raspberry pi 5 fan connector?
viewtopic.php?p=2179210&hilit=fan#p2179210you will need i.e. these https://www.ebay.de/itm/183673772772 and connect them to the fan of your choice (preferably 5V supply!)Statistics: Posted by...
View ArticleCamera board • Re: [GS camera] rpicam-vid broken by latest updates? Always...
If this has changed, it's certainly in error. I'll try it out shortly and see if I can get the same result.Statistics: Posted by naushir — Tue Mar 12, 2024 10:10 am
View ArticleTroubleshooting • Re: Can't get a display image using the HDMI
I've really spent way too much time on something that should be working out of the box. If there is an upgrade in the future that fixes whatever the problem is then great otherwise I'm just going to...
View ArticleGeneral discussion • Re: SSH hangs continuosly
Thank you very much for your hints.I checked the router and after disabling NAT loopback everything seems to be back in order.If you had not pointed it out I would not have found the cause.Statistics:...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: multiple PCA9548s on same I2C port
Having two instances of the i2c-mux overlay using different addresses ought to work. It would help the diagnosis if you could show the output of "i2cdetect -l" - I'm struggling to understand how you...
View ArticleGeneral discussion • Re: bookworm update forbidden 403
I tried from Win 11, Ubuntu, and Raspberry PI bookworm and all gave the same result, ~$ ping deb.debian.orgPING deb.debian.org (151.101.126.132) 56(84) bytes of data.64 bytes from deb.debian.org...
View ArticleCamera board • Re: I can't see the video on motion from my raspberry pi...
Last time I looked, motion didn't have support for lbcamera, only for simple V4L2 camera devices.You may find that the libcamera V4L2 compatibility layer ("libcamerify") works with motion - a forum...
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