Graphics programming • DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED and...
Hello, I'm trying to improve the performance of the conversion of data read from DRM. I'm currently reading data with drmPrimeHandleToFD + mmap and I then convert DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED...
View ArticleNetworking and servers • Re: Raspberry Pi 5 / RPIOS 64bit lite Bookworm: Does...
I do most of my fiddling on an ASUS NUC running Debian 12 bookworm. On checking a Rpi5, I realised nm-connection-editor is standard on the Debian release but is not available on the Rpi version.Code:...
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Off topic discussion • Re: A Blast from the Past
I got an e-mailed ad from Jameco with a link to a blog. Never mind the content, just take a GOOD look at the image at the top...https://www.jameco.com/Jameco/Blog/what ... 4+DI+LEADSNot sure what we...
View ArticleGeneral • Re: control a set of 15 inputs that output 15 outputs on Pico
Didn't you want the 15 inputs, 4 bit binary output version ?Code: from machine import Pin,Timerimport time# 15 direct buttons, 4 outputs for binary# setup gpios for buttonskeyPins =...
View ArticleGeneral discussion • Re: A Pi Pie Chart
I see that you do not have Orange Pi 5 plus listed. It appears to be slightly faster than opi5. These are the resuts:Code: hrvoje@opi5p:~/Build/pichart-current/pichart-40$ ./pichart-openmp pichart --...
View ArticleC/C++ • Re: Use the bcm2835 library to enable SPI4 communication
WiringPi supports SPI number 0-6 and channel 0-2 since version 3.6 New API calls: wiringPiSPIxGetFd, wiringPiSPIxDataRW, wiringPiSPIxSetupMode, wiringPiSPIxSetup, wiringPiSPIxCloseStatistics: Posted...
View ArticleGeneral discussion • Re: New Pi 5 Revision? What changed?
Sometimes I feel that I am piling sticks on the fire, but I thought of something that might be advantageous if there is a rumor of a 5+ in the future. I would like to see the addition of a full USB-c...
View ArticleTroubleshooting • Re: Pi 4b has 5V on 3.3V rail
The fact you have the wrong voltages means the PMIC is probably dead. They can be replaced but it is NOT easy and requires specialist equipment. I think the piHut has them in stock. (Part DA9090),...
View ArticleBeginners • Re: Pi4: backup and boot device type questions (beginner)
Good morning all. I recently started to setup a NAS using a Pi4B with a SATA SSD using RaspberryPi OS Lite and OMV. My first intention was to set this up mainly for Time Machine backups of my two...
View ArticleCamera board • Re: Arducam B0425 low light camera issue works only with...
Maybe install motion (not motion eye os) onto the Pi.Have a look at this link for motion 4.7 install https://forums.raspberrypi.com/viewtop ... n#p2250617Does rpicam-vid work ? If so there are othe...
View ArticleTroubleshooting • Re: Samba works for one share but not another. Permission...
Your user needs to be able to traverse the entire path to your files in /opt/homeAssistant/data.The base dir '/' has 'drwxr-xr-x' permissions, so anyone can enter it.The '/opt' dir has 'drwxrwxrwx'...
View ArticleTroubleshooting • Re: Screen is blank after it's powered on
It was a new install - but we did make changes to some of the settings using raspi-config and there was around 2Gb download as an update after a fresh install of the OS.Our initial install was from...
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Official Display • Re: Official Raspberry Pi DSI display quesiton.
Don’t know. That would effectively be 2 screens, VNC only showing the non 7 inch display - not sure!Why not just use 2 screens, 7 inch dsi and hdmi screen?Is is a headless device. The screen would...
View ArticleBeginners • Raspberry Pi GPIO Pin input voltage tolerance
Hi All,I'm currently working with a photoelectric sensor module to integrate with a Raspberry Pi 4 or 5 via an opto-coupler. The sensor input voltage is 12V, and the sensor output voltage is 11.3V. On...
View ArticleGeneral • Re: PICO 2 - Corrected version availability?
There is a good reason why the circuit works with the RP2040 and 'every other microcontroller' but not an RP235X. In my view it's only a flawed design by nature of the RP235X having a flawed hardware...
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Compute Module • Re: Raspberry Pi Compute 5 Release Date?
So, before Christmas? I believe so.Statistics: Posted by jamesh — Wed Sep 18, 2024 7:50 am
View ArticleBeginners • Re: Raspberry Pi GPIO Pin input voltage tolerance
3.1 will be considered as HIGH.Look i.e. at the DC characteristics from table 5 in https://datasheets.raspberrypi.com/cm4s ... asheet.pdfStatistics: Posted by aBUGSworstnightmare — Wed Sep 18, 2024...
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Other programming languages • Re: JavaScript graph library, for embedding and...
More progress, I work on planar_graph_playground repo since 2.5 years now.Originally in Python, later in C++ and JavaScript/NodeJS as well.Undirected graph has very similar looking implementations in...
View ArticleGeneral discussion • Re: Component Assistance
https://uk.farnell.comhttps://eu.mouser.comor whatever online seller carries that device.Statistics: Posted by aBUGSworstnightmare — Wed Sep 18, 2024 7:56 am
View ArticleGeneral • Re: Pico2 easy upgrade or nightmare?
Hello,Perhaps this video from Gary Explains: https://www.youtube.com/watch?v=GgYCBa4q4IE will help you sorting these.It links to https://github.com/raspberrypi/pico-exa ... _universal...
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