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 ?You'd need to actually read the piece to get an answer to your...
View ArticleTroubleshooting • Re: Raspberry Pi Python Memory Leak
Why are you still on Pi OS Buster?Statistics: Posted by rpiMike — Mon Jan 01, 2024 1:39 am
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 ArticleBeginners • Re: Break Beam False Triggers
Do you have the pull-up turned on for that GPIO? Or an external pull-up resistor?Yes, pull up is turned onStatistics: Posted by gbluff02 — Mon Jan 01, 2024 2:22 am
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Beginners • Re: Making backup of raspberry pi sd card
@sparrow,I don't know if you have figured out your own solution yet, but here is mine. My approach is oriented towards Windows PC users, so more tools with a graphical interface are used than Linux...
View ArticleGeneral • Re: How can I ensure memory coherence between cores?
I don't think this would be the cause of your problem but I would have thought thatCode: uint8_t* array[ARRAY_BYTE_COUNT] = {};should beCode: uint8_t array[ARRAY_BYTE_COUNT] = {};based on what I see...
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SDK • Re: Is pico any better at ADC than pico_w?
Yeah, I wonder if you can add ferrite beads/cores.Nope! noise is from spike and the 3.3V switching regulator. So is not just High frequency pulse.Just add a shunt voltage reference like the LM4040A30I...
View ArticleAdvanced users • Re: Using gstreamer + opencv in C++ on RPi5, RPi4 and RPi02W
Overall, I had found that the RPi5 is about 2-3 times faster than the RPi4B/Pi400.Statistics: Posted by Roboteer2024 — Mon Jan 01, 2024 3:00 am
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 ArticleDevice Tree • Re: failed to add spidev0.2 device
Without dtparam=spi=on, no spidev would exit.This is not true - the status = "okay" line in your overlay should do the same thing. Please do the test.Statistics: Posted by PhilE — Tue Jan 02, 2024...
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,...
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