General • RPi Pico PWM Switch time
Hi there,I am trying to use a single PWM pin on the RPi Pico to switch between two PWM frequencies: 1200Hz and 2200Hz. I would like to be able to switch between them at least at 1200 switches per...
View ArticleRaspberry Pi OS • Write to /sys/kernel/debug while OverlayFs is enabled
My current setup starts a system service during booting that opens a BLE server.For that I use the hci0 interface. Since my BLE clients need a "shorter" advertising time I reduce the value in...
View ArticleAdvanced users • ADATA SD620 external SSD: eject does not function properly
I tried using an ADATA SD620 connected to USB3.0 on an RPi5 and RPi4B, under Bookworm and Bullseye respectively. Since I did not intend to use it as a boot drive but rather to move data between...
View ArticleGeneral discussion • Waveshare 1.69 display and Raspberryt PI 5
I have been struggling for hours trying to get the waveshare 1.69 240x280 SPI display to work ith a raspberry pi 5 running stockbookworm 64bit OS. I tried to follow the guide on the waveshare website...
View ArticleGraphics programming • Using v3d performance counters causes kernel panic
Raspberry Pi 4, latest bookworm with all updates, 6.6.47+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.6.47-1+rpt1 (2024-09-02) aarch64 GNU/Linux1. Get and build kmscube2. Set GALLIUM_HUD to show some...
View ArticleTroubleshooting • Cannot connect to Raspberry Pi 4 via SSH
I am a complete newbie and installing Raspberry Pi OS on my Raspberry Pi 4 for the first time. I follow the standard approach, I use a linux PC (Ubuntu 23.04) and installed an imager there, and...
View ArticleGeneral discussion • Sdcard sanddisk pro extreme lasting!
Hi Pi users.How long, do you think, Sandisk Pro Extreme sdcard, with Raspberry pi os, have for lifespan?1 year, 2 year?Someone have some experience of it?Thanks in advanceBob, from SwedenStatistics:...
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HATs and other add-ons • A case for rethinking Pi5 cooling
CAUTION: Long Read!Some current cool/uncool realities could probably be summed up, as follows: • The Raspberry Active Cooler features exceptional design, offering both superior cooling (when used w/o...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Weather Display I2C
Noob here. Just learning a new skill so don't be too hash on a gearhead. So I've started working with a Pi 4 recently and let's say I've been out of the computing scene for way too long. Curious to...
View ArticleHATs and other add-ons • Voltage Monitoring
I have done some searching across Google and other suppliers and I'm not finding anything that meets my requirements.I need a way to monitor DC Battery Voltages, up to 60V DC.Most of the time, the...
View ArticleGraphics, sound and multimedia • Is Rpi4 capable of playing two full HD...
Hi,I'm having trouble with the playback speed playing two full HD videos on two screens with Rpi4. I am using two instances of omxplayer to play 1920x1080 30fps 10Mbit bitrate h264 movies on two...
View ArticleTroubleshooting • audacity not seeing audio
just upgraded my rpi4 to bookworm. installed audacity. get music from headphones but audacity doesn't see audio signal. under audio setup it shows the host as ALSA and gives no other option. the...
View ArticleBeginners • Which RPI model is best suited for my needs?
What I want to achieveSend my keyboard and mouse events to my RPI and RPI sending both to another device while presenting itself as a HID.What I'm familiar withIt's gonna be my first time working with...
View ArticleBeginners • kiosk mode with changing (multiple) webpages
Hi, is it possible to run a Pi in kiosk mode and display multiple webpages after each other. Say i have 4 webpages which i want to display after each other in a loop. Is this possible and how van i...
View ArticleOther projects • How can I disable GPIO button presses while video is played?
I have this project where I am making a sort of space ship command panel for use in the kindergarten I work in, where I aim to integrate a Raspberry Pi in the kids' play. I use buttons to execute...
View ArticleRaspberry Pi OS • UART (pins 14 & 15) support in Raspbian 12
For the life of me, I can't figure out what they changed in Raspbian 12 (32 bit) on the model 3 B+.In Raspbian 11, I had to do the routine steps in raspi-config to enable the serial port and disable...
View ArticleTroubleshooting • How can I get my camera to work?
I am trying to use these camerashttps://www.amazon.com/dp/B07X1VGQSLhttps://www.amazon.com/dp/B01ER2SKFSWhen I attach it, it is not detected. So far, I did everything in this...
View ArticleGeneral discussion • what to place in a make file to use libgpiod
Ii have a makefile that is pre-configured for a graphics display interface. I want to add the libgpiod interface to it, but am doing an excellent job of failing at it right now!In the preconfigured...
View ArticleAdvanced users • Supported SD card types/capacities
Most boards have microSD card slots, except of course for the 1B and 1A, which have SD slots. I am ignoring the CM and Pico ranges for the purpose of this question.Is there somewhere that specifies...
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Beginners • Changeing the resolution - sort of
Hi,To my Raspberry Pi 4 there is connected a display with 2048x1536 pixel but with the size of 9.7" only.Result: The desktop is crisp and sharp...and everything is of microscopic size.At what knob I...
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