Compute Module • Re: Raspberry pi frqmebuffer
Hi Abhimanyu,I haven't used OpenCV, but I have a reasonable amount of experience writing image data to the frame buffer.... when i am using code in raspberry pi uneven color and pixels are...
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Troubleshooting • Re: Installing Steamlink
I have no idea what I'm doing, but I managed to make Steamlink do something on Pi5 with Bookworm 64-bit by trial and error, installing what it said it was missing, restoring some backups...If anyone...
View ArticleSDK • Re: Problem with WS2812_Parallel example past 7 rows
I figured out the problem.I have been toying with Adafruit_NeoPXL8 which doesn't have this problem.Compared its PIO setup instructions and found among other differences, it did not have this line in...
View ArticleGeneral • Re: boot problem on custom board design
Could it be caused by something similar to what this person hit, power supply coming up to 3V too slowly?viewtopic.php?t=326487#p1954021Statistics: Posted by adam_green — Sun Dec 31, 2023 1:49 am
View ArticleMicroPython • Re: PICO and the NHD-3.12-25664UCW2
Heres what i've done so far : Code: """outline: https://github.com/mcauser/micropython-ssd1327init sequence/write buffer: https://github.com/JamesHagerman/Jamis_SSD1322other: SSD1322 Advance...
View ArticleTroubleshooting • Re: Pi4 will not boot after expanding file system on SSD
Today I tried a an old spare WD SSD. I did update, but I did not expand file system with raspi-config. On the 3rd reboot it did hang up, I powered down, waited a bit and powered back up, and it is...
View ArticleAdvanced users • Re: Is everyone happy with the quality of libgpiod?
Any opinions on whether or not 'gpioget' is "overstepping its bounds"?In respect of doing what, and under what circumstances ?As far as I can tell, if 'libgpiod' 2.1 and its utilities are implemented...
View ArticleBeginners • Re: Break Beam False Triggers
The problem with your original wiring becomes clear if you consider the current flow through the sensor transistor. Pi 3v3 supply, pull up resistance, gpio pin, yellow wire, transistor, external...
View ArticleTroubleshooting • Re: Raspberry Pi Python Memory Leak
It is LXTerminal, not Python, that is using all your memory—1.1GB virtual, 772.1MB resident, on a Pi3.That is likely related to the fact that you are printing reams of data to it in an infinite loop...
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General discussion • Re: Any chance of a 16GB Raspberry Pi?
I just got my 8Gb rpi5. I don't see the point in a 16Gb version. I can't realistically get this rpi5 to break wrt memory. I compile stuff a lot. It's a nice balance between cpu/ram. Contrast with my...
View ArticleTroubleshooting • Re: Raspberry Pi 5 Not Booting
If you get no voltage on the 5v or 3.3v in fhe respective header pins then I'd say it is dead.but the pi5 can also turn those off after a shutdown, so its less of a symptom on that modelStatistics:...
View ArticleTroubleshooting • Re: OK - so what's going to annoy me next?
Now, the thing is. Nomachine doesn't currently work under wayland. The obvious thing is to use raspi-config to switch to X11 (works fine). However, even if wayland is running, nomachine will offer a...
View ArticleSDK • Re: Is it possible to use SSI / QSPI for flash larger than 16MB?
i believe the automatic XIP window only works for the first 16mb of the flashif you want to access anything further, you will need to temporarily disable XIP and switch it into SPI mode, then perform...
View ArticleGeneral • Re: How can I ensure memory coherence between cores?
Sometimes stack frames get surprisingly largei sometimes had similar problems with my ext2/ext4 driver, and i found some tricks to help with thatfirst, compile your project with -fstack-usageyoull...
View ArticleDevice Tree • Re: failed to add spidev0.2 device
It is an Linux kernel built by myself, using the kernel source from Raspberry repository, version 5.15.y.The version shows 5.15.92-v7+ by uname command.Without dtparam=spi=on, no spidev would exit.The...
View ArticleBeginners • Re: Pi-Hole + Wifi AP
Reboot has solved the issue. I am now done. Works really well.Statistics: Posted by DepstR — Mon Jan 01, 2024 11:46 pm
View ArticleTroubleshooting • Re: Raspberry PI 5 Red light with Flashing green light
Soldering temperature profile. RAM chips are BGA packages which are quite demanding to properly solder. Sometimes it can happen that the melting of solder is not proper. In that case sometimes contact...
View ArticleTroubleshooting • Re: Pi 5 not booting as spec - method to get rid of power...
No detected 5v/5A supply means booting from USB will pause and require a user confirmation via the power button inorder to continue.but one critical thing, is that it will display a green led while...
View ArticleAdvanced users • Re: TRYBOOT_A_B not booting into secondary boot partition...
That's a bit above me. It seems that it can't read EDID, cmdline.txt and other files. Does your boot partition contain *.dtb, bootcode.bin, *.dat, initramfs8, kernel8.img, *elf, config.txt,...
View ArticleGeneral discussion • Re: BULLSEYE Document for ZERO 2 W
The Pi Zero 2W has 512MB of memory and the RPios default swap space allocation is 100MB. A gui desktop system will have swap space problems which can be solved by editing /etc/dphys-swapfile to...
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