Compute Module • Re: Disabling GPU
Hello PhilE,I just see that we have deactivated this module. vcgencmd tells me that other GPU/graphics (3D block speed; GPU core speed; pixel values) units are active, how can I deactivate them?Code:...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: Interfacing a 8-bit Serial RGB Display
That's just a rhetorical question.That's worse. What point were you trying to make with your rhetoric?Sorry, but don't get what's 'worse'!do you want to jump through all these rings?if yes: feel free...
View ArticleTroubleshooting • Re: Two RPi 5 dead
You can buy a replacement DA9090 from PiHut in the UK, not sure about the DA9091 (and they are not compatible). Note that these are EXTREMELY difficult to replace even with specialised equipment.You...
View ArticleGeneral discussion • Re: DIY树莓派5的电源出现黄色闪电符号
How many times does the following need to be stated?Unless informed otherwise via settings, a Pi5 is reliant on USB PD to know that it is being powered by a supply capable of 5A.Statistics: Posted by...
View ArticleAdvanced users • i2c expander
I am going to use this https://robu.in/product/pcf8574t-i2c-i- ... KgQAvD_BwE expander & i2c based 16*2 LCD display. How can I interface both? what are ready to use module that work in industrial...
View ArticleTroubleshooting • Re: Issue with Raspberry Pi 3 Model B+
The customised OS has not been updated to handle some minor production changes to the 3B+.Statistics: Posted by drgeoff — Tue Jul 30, 2024 1:35 pm
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General • RP2040 Custom Board, doesnt run the code
Hi,We've created a custom board with the RP2040 and now we ran into problems running code. I've looked at other threads and tried applying what has been suggested such as lowering clock and changing...
View ArticleNetworking and servers • Re: Access mysql database on raspberry pi from...
To access it from anything other than the local machine you will have to make it listen on the correct network interface ... .... with the correct remote credentials and correct security specs on your...
View ArticleAutomation, sensing and robotics • Re: How to analysis data from thermal images
In the excellent opencv_therm_cam.py from github, we see it uses the function temps_to_rescaled_uints(f,Tmin,Tmax) to convert temperatures to pixels on image. Can you use the temperatures (f) from...
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Troubleshooting • Re: rpi 5 boot nvme (not found)
Hello,I'm having the exact same issue with the same drive...I can read/write to the drive on the PI Desktop but can't boot from it.I tried to Image the Lite OS version so I can install Open Media...
View ArticleBeginners • Re: Measuring voltage on GPIO to detect blackout
I have a new idea - use a mains plug with a neon indicator to power the “power bank”. Use a light dependent resistor (LDR) (or phototransistor) to “look” at that neon. If it goes off we know the mains...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: PWM phase offsets not working on RP1
You might be better off with RP2040 - PIO is a very capable PWM generator and each SM can do different things synchronously.Statistics: Posted by jdb — Wed Jul 31, 2024 12:53 pm
View ArticleTroubleshooting • Re: rpi-connect service not starting on Bookworm 64 bit OS...
We have all made the sudo mistake at some time…Statistics: Posted by neilgl — Wed Jul 31, 2024 12:58 pm
View ArticleGeneral • Re: PWM slice limitation workaround
Are you using the PIO for anything? Each PIO SM can be an independent PWM, so that would give you 8 of them if you aren't already using PIO for something else.Statistics: Posted by arg001 — Wed Jul...
View ArticleGeneral programming discussion • Re: Start LED before LUKS password entry
What am i missing here?Since rootfs is encrypted, there's no way you're going to be able to get any services to run before you get that rootfs unecrypted. The luks unlock is done in initramfs before...
View ArticleTroubleshooting • Re: Bios does not recognize raspberry Pi in g_multi mode
I've not played around with this since the end of April.To get things working on Win11 I did a couple of things differently to what you're doing:Used the VID and PID that g_ether uses. 0x525 and...
View ArticleTroubleshooting • Re: What are all of Raspberry Pi 4 Problems?
I am about to go buy a Pi4 and hopefully the 4Gb otherwise 1Gb, what are all of the problems that exist with this new iteration?Raspberry Pi 4 was 'new' in June 2019. Ref:...
View ArticleTroubleshooting • Re: How can I get permission to write to the USB disk?
Here's a couple of other ideas (unrelated to each other):1) Put it in /etc/fstab, with "user" in the options list. Then you can mount it as you (user pi or whatever) and it will be owned by you.You...
View ArticlePython • Re: DS18B20 / w1thermsensor
I'll elaborate on the venv thing later when I have more time to type.We know you have /home/pi/.local/bin in your path at the front and at the back. Keeping both is not a problem, but if what you run...
View ArticleRaspberry Pi OS • Re: Shutdown on startup
Thank you Thagrol - never heard of fakehwclock, but I like your theory about python thinking it's still 2200 hours at restart. I have considered cron but thought it an unnecessarily complication. I...
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