General discussion • Pi 5 and 4 x 4 Keypad
Hi.If anyone could point me in the right direction, i really would be grateful.I have purchased a Pi 5 and 4 x 4 matrix keypad. For testing purposes i have just 1 wire connected from the keypad to the...
View ArticleTroubleshooting • Re: wpa_supplicant restarting every 4 seconds or so
what osi found it worked best with legacy 32bitthe first thing you need to do before anything else is increase the swap to compensate for the low...
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Raspberry Pi OS • Best PiOS for a Pi3B
A friend announced very proudly that he had bought a £5 Chinese pi - including PSU tonight. I have previously offered him a Pi, so heavens only know why!He wants to play with some electronics, so I...
View ArticleRaspberry Pi OS • Re: Best PiOS for a Pi3B
Raspberry Pi OS.Statistics: Posted by ame — Sat Jun 01, 2024 11:44 pm
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Troubleshooting • Apt install fails
Hi,I have used Raspberry Pi Imager v1.8.5 to create an image on a 32GB SD card.Raspberry Pi Zero 2W64 BitWhen I run the following commands the update stops.Code: sudo apt update && sudo apt...
View ArticleOther projects • Re: Custom Key pad
Well, I'm afraid there's nothing else for it. You'll have to get back to basics and do it the boring way.Get an A4 sheet of paper and mentally fit the PCB outline within it, viewed from the keys side,...
View ArticleTroubleshooting • Re: Raspberry Pi 4b dead???
I used a onn battery connected to the usb-c jack. It gave 5vStatistics: Posted by nevaang — Sun Jun 02, 2024 12:08 am
View ArticleGeneral discussion • dnsmasq fresh install stop-dns-rebind and dnsbomb
Recently a security researcher shared information regarding a new vulnerability affecting DNS, named dnsbomb, this was been corrected in dnsmasq and the community would benefit from having the latest...
View ArticleHATs and other add-ons • Re: GPIO Extender for RPi5
Excellent news!Thanks for your help, everyone!Statistics: Posted by thismarty — Sun Jun 02, 2024 12:26 am
View ArticleGeneral discussion • Re: RPi MP3 player questions
The heatsink is overkill. I used some tiny copper heatsinks. The fan in the main case will move air around.For that size overall, I recycled mSATA SSDs in mSATA to USB enclosure boards with or without...
View ArticleGeneral discussion • Re: Metallic enclosures and wifi/bluetooth degradation
I recently started using a plastic case instead of my aluminum enclosure (photo above). I can not say i have seen any improvement on wifi throughput, however, bluetooth is definitely better now. I am...
View ArticleBeginners • Re: Uses for a Pi Zero 2W
Your 20 years of software development experience does not seem to include any web searching skills.@ame If you know where @piedpiperson could find information to answer their question, you may want to...
View ArticleAutomation, sensing and robotics • Re: Reliable Tilt Switch
Ok, how are you detecting the switch closure? Polling, or interrupts?It could be a software issue, as there is no difference between a tilt event happening and the switch failing to actuate and a tilt...
View ArticleTroubleshooting • Re: High Load
Also today even after optimizing my scripts as much as possible, with around 10 second delays between them, instead of 1 secondI got a load of around 22 and that reached the 15 minute averageI did...
View ArticleGeneral discussion • Re: Current measurement of pi5 using multimeter
I use an INA260 to plot cellphone charging. It captures both instantaneous voltage and current (or just power). They sell for $10. I use a USB cable with the VBUS line cut, in order to insert the...
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General discussion • Re: Fun 3D printed Pi5 case!
I'm on the practical side of the spectrum. The Zero case also works with Zero2, and the "B" case works with all B variants.https://www.printables.com/model/24751- ... board-caseGreat idea! Just a...
View ArticleSDK • Re: Swaping bytes when DMA_SIZE_16 - changing byte order to big endian
I don't know the answer, but you can at least minimize the CPU by using __builtin_bswap16, which, with any luck, will compile to a REV machine instruction. (And maybe you can process chunks at a time...
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Other projects • Switching Android board with RPi5 in Sunmi K2 kiosk
Looking for some help. I have the Sunmi K2 digital kiosk (capacitive touch, 24in screen, thermal printer, NFC, camera) but it's running Android software.I've developed some software on a RPi5 and...
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Other projects • Re: Switching Android board with RPi5 in Sunmi K2 kiosk
I opened up the unit a little more and have attached what I found. Looks like a connector for capacitive touch and a ribbon cable for video.I'm assuming power goes out of each of these and input comes...
View ArticleBeginners • how to change the location to save screenshots
Hello. How do I change the default location to save my screenshots, from: /home/pito: /home/pi/DesktopThanks.I have a Raspberry Pi 4B running Raspberry Pi OS (64-bit) Debian Bullseye...
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