General discussion • Re: Bought a 2nd hand Pi 4. It has a strange click sound...
That sound is not normal. hard to tell if it's coming from the Pi or something from the case.I would advise to take the Pi out of the case and run the Pi without the case to see where the sound is...
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Other programming languages • Re: JavaScript graph library, for embedding and...
It took a while, and work is not completely done yet.Newest version does at least for the problematic edge work with latest commit.So for edge 2 this command ...Code: ./rjs...
View ArticleGeneral discussion • Re: RPi 5 as a desktop daily driver?
Is there any repair option for a failed Raspberry Pi other than a complete replacement?It's not possible to buy the PMIC, the SOC or the RP1 I/O controller used in the Pi separately.As an anecdotal...
View ArticleAI Accelerator • Re: Coral Accelerator
ModuleNotFoundError occurs when a library is missing. Please check if you have installed all the libraries (pycoral.adapters and other libraries that you are using) properly. Something is missing I am...
View ArticlePython • Re: Is Python on a Pi4 fast enough to generate a monochrome video...
VGA is colour though. Do you know if it can be configured to output any of the older monochrome signals? VGA is also analog, I need TTL (digital0.I'm sure it could be modified for older timing, being...
View ArticleGeneral discussion • Re: Power Supply for RPI 3
A Raspberry Pi 3 Computer connected to the screen with a screen that is USB powered, I would recommend purchasing a 5V3A power supply.If you have a power supply with a built in power switch, I...
View ArticleBeginners • Re: @thagrol? Non GPIO 3 start up shutdown pi zero 2w?
I'm not at all sure I follow that circuit. But if I do...It's overill. The simple four wire DP/two switch method works.3.3v is shorted to GPIO27 throguh aprox 900 ohmWon't Q1's base also be pulled low...
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Troubleshooting • Re: Bricked Pi5 after udpate & upgrade
Probably not 'bricked.'At least, not in my understanding of that slang, which I take to mean something like: "hardware that is rendered non-functional in such a way that recovery via software can not...
View ArticleNetworking and servers • Re: WiFi over ~30m any suitable antenna options?
Couple of other options: Powerline Ethernet Adapter -- One side you plug in the Master to an outlet and take a RJ45 connection and plug it into your Router, somewhere else outside that has power,...
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Automation, sensing and robotics • Re: code PIR motion sensor to trigger a...
So it must be the relay - is it an "active low" module and can you show a picture of it and the wiring?i bought from ebay: https://www.ebay.com/itm/292160479941seems "active low" according to...
View ArticleGeneral discussion • Re: how to create a data repository Pi ai can access
Pi aiWhich software package? How is it configured?The only Pi AI I have looked at is the Hailo chip. AT the time, a few months ago, Hailo said it was working with image processing SDKs but everything...
View ArticleGeneral discussion • Re: Random question SD card reader
write to SD cards of coursemicroSD slot is one tenth the speed of USB 3. A good reason to not use it for more than the occasional backup. My good microSD cards are twice the microSD card slot speed so...
View ArticleOther projects • Re: Model Rocket MPU6050 vs ADXL345/375
This remember me the catapult project on the Pi Version 1. I did in 2015 .https://github.com/danjperron/GCrashStatistics: Posted by danjperron — Tue Sep 10, 2024 10:27 pm
View ArticleGeneral • Re: RP2350 E9 bug - also for other GPIOs, e.g. SPI?
...Also, I think the author is wrong regarding SD-MMC...I think it is, or was, true: A pull-up on the DO cannot be omited, or some cards will fail initialization process. I don't know whether they...
View ArticleGeneral • Re: Trying to understand printf on FreeRTOS SMP on Pico
USB is protected by a mutex. The kernel uses a notification feature which monitors every mutex. The kernel does not understand that this is an ISR. The kernel itself locks up. It uses two mutex locks...
View ArticleGeneral • Re: Uploading to Pico took out Bookworm desktop
I think that is the SD card on the Raspberry Pi SBC not the Pico, I think? I am not thinking the dmesg shows the Pico as a storage at this stage. Hippy will clarify.The SD card would be a /dev/mmcblk0...
View ArticleAutomation, sensing and robotics • Re: Rotary encoder issues
Thanks. Just looked over the Pico and decided to go with the Pico H with no wifi. Now to get it ordered and figure out how do set everything up. Communicating between the RPi 4 and the Pico will be an...
View ArticleTroubleshooting • Re: Eth0 Shows Device Interrupt 106
It's not an error or warning, just information. /sbin/ifconfig prints it if it's present in the data structure given to it by the kernel. For reasons I don't particularly feel like investigating,...
View ArticleGeneral • Re: Continues SPI transfer
...The FT232H is the master in this case, my rp2040 is the slave. I have measured the clock with my Saleae logic pro 16 and it is roughly 30MHz....Oh, in that case, I think you're already running out...
View ArticleGraphics, sound and multimedia • Re: iMac as display for RPI5
Many thanks for your report inspector_gadget. And I'm glad to pump some dopamine into your veins. I didn't mention the issue in my first advice because I believed it was my fault during the...
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