For sale • Re: RPi4b & 3b for sale
Wildfire,You are correct. The 3b is only 1Gb RAM.Anyway are you still interested in buying the lot?Statistics: Posted by Peter Linu — Sat Oct 25, 2025 11:15 pm
View ArticleKeyboard computers (400, 500, 500+) • 500+ screw pattern for mounting plate
So, previously i tried to mount a 400 for an install in a hard case. It sort of worked.Thus i am very happy with the decision for the 500 plus to use screws. I've already confirmed that the screw...
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Beginners • Re: Asking for pointers with a humidity sensor plan.
I do something similar with the dht22 sensor. The simple way to collect all the readings in a central location is have the sensor program write to a log file on the zero (you can save...
View ArticleRaspberry Pi OS • Re: Compose key works everywhere except Chromium on Wayland...
Are you running trixie, or bookworm? Is it only your custom sequences that fail?Compose works for me in Chromium in Wayland (labwc) in RPiOS trixie with default sequences like ss→ß, :)→☺. Chromium...
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Other projects • outdoor Pi enclosure that works well
IDK if this is the right place, anyway: I have a semi-permanent GNSS receiver station. The longer your antenna cable, the more signal loss you have so the electronics should be reasonably close to the...
View ArticleGeneral • Re: Programming via debugger causes very significant slowdowns in...
OK, I tested this by enabling FreeRTOS SMP, and having a task on each core that prints (I only have two tasks)printf("Loop! %d\n", get_core_num());amongst the other things and I see that both cores...
View ArticleMedia centres • Re: Suggestions for software to make standalone media player...
what's wrong with KODi?Works good with touchscreen?If the screen has the correct DRM drivers, then it should work just like an HDMI display and mouse.Statistics: Posted by jamesh — Sun Oct 26, 2025...
View ArticleTroubleshooting • Chromium annoyance
Hi all,Since I started using Trixie I have run into a real Chromium annoyance.The OS version is...Code: Linux trixie-desktop 6.12.47+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.47-1+rpt1 (2025-09-16)...
View ArticleTroubleshooting • Re: [solved] Pi4B Recently Drops WiFi
I mistakenly assumed that the whole thread would be deleted. As it stands it makes no sense at all.If a volunteer takes the time to offer their help, it might be perceived as rude to delete their...
View ArticleTroubleshooting • Re: Pi4B Drops Ethernet and/or WiFi
Was it the same issue as in this post viewtopic.php?t=379321Yes. I asked for that post to be deleted because it is poorly written and no longer factually accurate.I posted a reply to this thread...
View ArticleGeneral • Re: I2C operation does not survive jump to user program
Just to resolve an ambiguity in the code samples for everyone looking at the code, what are the definitions for the pin constants:Code: sleep_ms(20); user_i2c_scan(i2c0, PIN_I2C0_SDA, PIN_I2C0_SCL,...
View ArticleSDK • Re: Floating point bugs on RP2040 and RP235X ?
Having nan propagate correctly means I don't have to check at every step like I do when using -99999 .Is this being fixed in the SDK ? It's a shame to lose that extra speed and efficiency when it's...
View ArticleTroubleshooting • Re: Boot, USB & Fan Power Failure (rp5)
That sounds incredibly frustrating—it’s completely understandable why you’re losing confidence! Based on your description, the issue is almost certainly related to the power delivery to the Raspberry...
View ArticleHATs and other add-ons • Re: 52Pi vs Waveshare PoE+NVMe HAT for RPi5...
Normally, after shutting down the Raspberry Pi, it will stay shut down. We recommend using a multimeter or oscilloscope to check if the 5V voltage on the Raspberry Pi drops when it's shut down. If the...
View ArticleCompute Module • Re: Using a USB mux switch for the USB 2.0 port in CM5...
Yes, I have referred the cm4 io board and to me it looks like the USB MUX switch connection is fine but the difference in my design is the USB_OTG pin from the connector to the CM5 has no connection...
View ArticleWanted • 2.5 Gb USB-C adapters?
What would you recommend for 2.5 Gb USB-C adapters that are compatible with PI 5 on Raspberry Pi OS Lite? (Preferably available on Amazon)Statistics: Posted by HawaiianShirtGuy — Mon Oct 27, 2025 4:27...
View ArticleTroubleshooting • Re: Trixieand cyrus-imap
Thanks mitu for that - pity as the 3A+ is memory limited. Have installed the 64-bit version and cyrus-imap is running OK. Have to be careful what I run at the same time as otherwise the OOM killer...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: Small TFT based on ILI9341 ST7789 -...
If anybody has tried my solution for the ili9486 and ili9488 RED SPI LCD,Have you noticed that the displayed image is offset by 5 or 10 pixels to the right? The right pixels are "beyond the LCD", and...
View ArticleTroubleshooting • Re: Chromium annoyance
I see the same problem as the OP. I run `journalctl -f` in a terminal window and can see that Chromium is killed by the kernel out of memory killer.I tried doubling swap from the default 2GB to 4GB...
View ArticleBeginners • Re: Genmon - MQTT - Pi = Broker and HA = Client
i run into similar problems setting up MOSQUITTOon RPI recentlyfinding that my password file has wrong settings ?NOW under TRIXIE?here show modified setup procedure:Code: sudo apt install -y mosquitto...
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