General discussion • Re: Interesting gig: Upgrading RP4 RAM from a gaming board.
first problem, is it lpddr4, or a different type?second problem, the 8gig chip already has the max number of rows the controller can handleand the only known 16gig lpddr4 chip, has double the rows,...
View ArticleFrançais • Re: Impossible de parmétrer boutton on/off
Oui c'est ça 5 et 6 pour la masseStatistics: Posted by Tubkatodic — Sat Mar 16, 2024 8:08 pm
View ArticleTroubleshooting • Re: How Do I Clone A Micro SD Card From An Existing...
I'd like to clone the SD card from the faster machine and use it in the second machine, but I'm not really sure the best way to do that. usb-boot will copy a running Raspberry Pi OS system to a...
View ArticleGeneral • Re: How to report compile time values ?
Code: #if TOTAL != <expected value>#error TOTAL has unexpected value#endifEither done temporarily, or better in a unit-test file that's conditional on the particular target.C let's you shoot...
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Troubleshooting • Re: tightvnc server shows gray/grey screen with + cursor
Strangest thing. Spent all morning yesterday trying to get past the gray screen. Found I could sudo tightvncserver and get it to work, but then had issues changing from root to usr. Noticed the...
View ArticleTroubleshooting • Re: Raspberry Pi 5 screen output problem
Hello again, i tried starting it with the second monitor, it works only with the hdmi port 2 and the image disappears when i wiggle the cable. Is it possible that my cable/adapter/display is broken,...
View ArticleRaspberry Pi OS • Re: Can no longer "echo 6 >...
What also worked is setting in /boot/firmware/config.txtCode: gpio=6=op,dlwhich has the advantage of powering the modem automatically every time raspberry pi is turned on.Statistics: Posted by timcu —...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: telescope focus motor - xHCI host not...
Ok - i’m still in the early part of the learning curve regarding this tech, but i think i get the idea. My main question would then be how is this issue side-stepped in windows and apple OS? I know...
View ArticlePython • Re: How Do I Open Audacity With Python?
It worked, but I got this massive error.What should I do to fix this?Joke begin: for a massive error, the printout is quite small. Joke end.What error ?Statistics: Posted by ghp — Sun Mar 17, 2024...
View ArticleMicroPython • Re: Pico requested vs measured I2C SCL frequency
After trying I2C on a SAMD21 part running micropython, and seeing the same behavior, I suspect that MicroPython is running software I2C. The hardware I2C registers are being written to, but software...
View ArticleTroubleshooting • Re: Using systemd and xinit to run feh on startup
I solved the problem by running feh from autostartStatistics: Posted by spinnekoppie — Sun Mar 17, 2024 8:00 pm
View ArticleC/C++ • Re: Boost provides free peer-reviewed portable C++ source libraries.
I had to use breadth_first_search (BFS) on really big graphs I created.I found this page as perfect starter on how to do BFS with Boost graph...
View ArticleGeneral discussion • Re: Pi4 with Arducam 64mp- No camera detected
Is it a 64mp hawkeye or owlsight ?AFAIK...If its an owlsight you should only need to add dtoverlay=ov64a40 to /boot/firmware/config.txtIf its a hawkeye then follow the arducam instructions.Statistics:...
View ArticleBeginners • Re: Rpi 5 and Pan Tilt hat
I fixed the export!!!!the original github of zeroping/sysfspwm wasn't working because he forget that after an export you need to wait for the pwm to popup on folder.I just add a small delay of 100ms...
View ArticleMicroPython • Re: Dynamic USB Devices
That was my plan as I only deal in official releases.There's always the option of disabling dynamic USB in 'mpconfigport.h' but I am hoping for something which will allow additional devices to be...
View ArticleDevice Tree • Re: RPI5: Issue with dynamic applying DT for Sound Card
I spoke too soon - the penny has dropped. Fixing the obvious Pi4 -> Pi 5 difference does make runtime soundcard overlays work if the modules on your Pi 5 match the kernel.There's a Pull Request in...
View ArticleUbuntu • Re: Need to configure Ubuntu like you can with Raspberry Pi OS on...
Download the latest RPI imager, go ahead and select Ubuntu then press write, it will ask you if you want to customise like add a username/hostname/password/ssh etc. If that's possible on the RPI...
View ArticleTroubleshooting • Re: Pi5 connects to wifi, dns working, no internet
Code: $ route -vKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Ifacedefault 192.168.240.1 0.0.0.0 UG 600 0 0 wlan0192.168.240.0 0.0.0.0 255.255.255.0 U 600 0 0 wlan0Your...
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Automation, sensing and robotics • Re: Wiring multiple photoelectric sensors...
2) 4k7 resistor over 5V and light ON (as shown in your diagram on Mar.14): 4.84V when sensor detects nothing (no hit), 5.15V when sensor detects object (hit).This is PNP output . Then it's not a...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Rasberry Pi 4 - 2 Channel SPI0 Conflicts
Hello, I'm running a 2 channel spi configuration utilizing the SPIDEV kernel module. The first channel (CS0) sends out a 4 Bytes full duplex message as a heartbeat monitor and the 2nd channel is used...
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