Beginners • Changing/adding QT code to make windows fit screen?
I built a book scanner, following the instructions by a Japanese maker (https://note.com/fynote1009), and I installed their SimpleBookCapture program...
View ArticleAutomation, sensing and robotics • Relays for ethernet connections
Is there any way of using something like a relay to physically connect and disconnect an ethernet cable from a Pi to another piece of computer equipment, programmatically and very frequently - every...
View ArticleBeginners • Running a program at startup
I followed the instructions in the sticky, latest Raspberry Pi OS, ...pi@raspberrypi:~ $ ps -ef | grep LXpi 1016 1 0 03:34 ? 00:00:00 /bin/sh /usr/bin/lwrespawn /usr/bin/pcmanfm --desktop --profile...
View ArticleTroubleshooting • xdg-open warning messages
I would like to suppress the warning messages I am getting when using xdg-open to open a jpg file taken with a raspberry pi 3 and a raspberry pi noir camera version 2.1.Any assistance would be greatly...
View ArticlePython • Video feed not connecting / refreshing to WiFi Mesh
Hello, for context, I'm doing a project on an Air Duct Inspection robot, and right now im working on streaming a HD video to browser. We're using a WiFi Mesh and we put the routers and different...
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Other RP2040 boards • PICO 2 RP2350 clone
When you browse the Aliexpress you can find many offers like this:https://pl.aliexpress.com/item/10050079 ... ry_from%3AThey miss RPi logo, they are expensive. Can you spot the difference between them...
View ArticleSDK • RP2040 and PWM
Just wanted to be confirm what I think I read about the RP2040 and PWM.1) It will interrupt when TOP is reached, or when executing in Phase Correct mode when the counter reaches zero on the downcount....
View ArticleTroubleshooting • Ping from Raspberry to Router hangs sporadically
Hey everyone,i have installed Raspberry Pi OS 64-Bit Lite (headless) on a Raspberry Pi4 and problems with pinging my router from there. The ping-messages are hanging sporadically for like 2 to 6...
View ArticleTroubleshooting • window manager broken
hellohavent do anything special, but after reboot, my RaspbianOS boot into LXDE and with two possible users, previously was auto login with pi, now there is as well glance, dont know where it came...
View ArticleMicroPython • Reading OTP on the RP235X
Might be useful to anyone interested in exploring OTP on the RP235X.Code: from machine import mem32def OTP(row) : return mem32[0x40134000 + row * 4]def ECC(row) : return OTP(row) >> 16def...
View ArticleAdvanced users • PCI SATA Adapter working on CM4 but not in Pi5
HelloI have an M.2 PCI SATA Adapter (ASMedia Technology Inc. ASM1166 Serial ATA Controller (rev 02)).It works mostly fine on CM4. Sometimes the CM4 doesn't boot, then a Power Reset is needed to get it...
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Troubleshooting • Pi4 damaged PCB help
Hi,Just wiped out one element from PCB. 3-legs component between hdmi ports. IT is probably a stabiliser or a transistor. Two right contacts are reachable on PCB. Left one is damaged.What is this...
View ArticleGeneral discussion • Raspberry Pi 5 overheating
I installed Lakka OS on my new Raspberry Pi 5, however the raspberry overheating and freeze, my question is why? And why Raspberry Pi don't have a protection to shutdown the system on high...
View ArticleGeneral discussion • MQTT explorer (or alternative) for Raspberry Pi OS?
Hi, Newbie here. If I should post this in software section please let me know.I am starting a MQTT project and I have installed Mosquitto MQTT broker on my Rpi4. I see all the online broker has...
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General discussion • A project for learning English while playing games
Hi,I'v open-sourced a project based on raspberry pi 5, and it helps people learn English by playing video games.I tested it in Chinese and it should also work for any other language by modifying 3...
View ArticleSDK • /pico/stdlib.h not found
Hi,I have been playing around with the spi_master example, making some modifications (as one does). I have created a couple of custom functions, which work fine when in the spi_master.c file (main). I...
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Beginners • Hardware for Auto Telemetry
Hello, my last work with pi's was ~2018-19 so I saw myself to the beginner section I have a mechanical background, had my circuits/coding knowledge is spotty at best, but wanted to learn since all the...
View ArticleSDK • Setting LEDs on keyboard freezes up
Hello everyone, I'm trying to set the LEDs on my keyboard when the caps/num/scroll Locks however the core freezes up likely locked in a loop and without keyboard control.Code: void set_leds (uint8_t...
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Other projects • I2C 128x128 OLED display problem.
Hi alli have bought 128x128 OLED display which i sort of got to work. This is SSD1327 (ZJY-M150-128*128-4P). The problem i have with this display is that it is very dark compared to my other 128x64...
View ArticleGeneral discussion • 90 degree rotation video not supported?
I'm just now unpackagin my Raspberry Pi 4 and decided to pick up a Camera Module 3. My simple goal here is to live stream a video. The problem is that, while I can stream videos, the video need to be...
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