General • Re: Assign variables to specific addresses?
I'm out because this thread got astray just for the sake of contradicting.It's hard to disagree without being contradictory but I don't see this thread as having gone astray at all; it simply covered...
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Troubleshooting • I cannot get a remote VNC setup working Raspberry Pi5
VNC REMOTE SERVER ISSUES Hello Raspberry Pi users, I recently purchased a Raspberry Pi 5 and have had no end of troubles trying to get a VCN server to work with it. I have tried RealVNC. The RealVNC...
View ArticleSDK • Re: Error compiling for RP2350
I was under the impression that PICO_PLATFORM, and PICO_BOARD could be defined using the set command in CMakeLists.txt. It appears, however, that they have to be set as environmental values. After...
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General discussion • [RPI4] disable bluetooth affected I2C communication
Hi Folks,I build a custom Pi HAT that contains sensors and modules. The sensors are communicating with RPI4 via I2C and UART. I am using Bookworm 64 bit OS.My issue begins when I started using serial0...
View ArticleTroubleshooting • Re: HM-10 does not talk to raspi 5
Seems very odd. There might be a clue in the Bluetooth traffic and it would help to have a sight of the btout.txt file obtained as follows:1. Enter k and set print mode to 2=Verbose2. Connect to...
View ArticleRaspberry Pi OS • Re: autostart VLC player with RTSP stream
Interestingly, nothing happened. (user = pi)set the link up so that when we run "a" it gives us a new terminal. OK This is ./a and .config/labwc/autostart contains just [autostart]rebootlogin via VNC...
View ArticleTroubleshooting • Re: Zebra printer issues
Try installing the cups-bsd package with apt. That should give you the lpr command.This was the answer! Thank you so much!Statistics: Posted by bklass — Wed Mar 26, 2025 12:49 pm
View ArticleCompute Module • Re: CM5 based laptop from Argon40 in the works
In the latest engineering sample, we have implemented two separate MCUs: one dedicated to keyboard control and another under consideration for power cutoff and screen brightness management. The...
View ArticleCamera board • Re: Supporting RPI cameras on my custom FPGA board
I can set the logic level/voltage to 3.3v or 1.8v on my FPGA but my question was: If my FPGA is already 1.8v do I need to translate that to 3.3v because that's what the camera itself expects as an...
View ArticleCamera board • Re: Matching timestamped frames from HQ Camera wall lock times...
The timestamps on frames are applied by the kernel, so they're much more accurate than userspace would be. We typically see "a few tens of microseconds of jitter" on them, whereas in userspace you...
View ArticleCamera board • Re: White balance gains offset?
I would suggest going to the camera tuning file (probably /usr/share/libcamera/ipa/rpi/pisp/imx708.json in your case) and finding the "sensitivity_r" and "sensitivity_b" fields. I'm afraid I can't...
View ArticleTroubleshooting • Re: raspPi 4B i2c cannot detect address
Code: sda.1 --- | |---| |-------| |--------- |__| |__| |___|0V here ---------------------------------------------To add ASCII art include it in [code][/code] tags, That way the forum can't destroy...
View ArticleTroubleshooting • Re: Raspberry pi RED Led blinking continuously when power on
1) what kind of PI? (pi3/4/5/400/500)?2) if you remove the HATs and USB, does the issue go away?Statistics: Posted by terribleted — Thu Mar 27, 2025 12:16 pm
View ArticleGeneral • Re: I can't detect I2C devices on pico2 RP2350
hello,i have same problem with raspPi 4B, but I use the command: sudo i2cdetect -y 1cannnot detect I2C devices.I checked the waveform of SDA.1 and SCL.1, it sames the SDA.1 cannot get low voltage...
View ArticleAutomation, sensing and robotics • Re: How to connect a MH-Z19 CO2 sensor to...
Go to that Robu link, look at attachments and download the datasheet for the device. The wiring is all detailed in that. You'll need to use the UART output.Statistics: Posted by jamesh — Thu Mar 27,...
View ArticleGeneral discussion • Re: Does it make sense to make a laptop with Raspberry...
Has been discussed to death. You are NOT going to be able to make a Pi based laptop, with the same form factor, battery life, thermals, and performance as a fairly low end designed from scratch x86...
View ArticleSDK • Re: Trying to just get started- native machine code into mpy file
Here's a working but not robust Native C Extension to get you started -micropython.cmakeCode: target_link_libraries(usermod INTERFACE OWN_MODULES)add_library(OWN_MODULES...
View ArticlePython • Re: opening in every screen one url
Still lacking in many details but...RPiOS Bookwomr 32bitX11 and lxdeModern X servers don't use :0.1, instead all screens are merged into a single :0 display.There's a standard X11 option -geometry...
View ArticleGeneral discussion • Re: Raspberry Pi 4 Model B explode from 45w of power?
45W at 5V DC is 9A.But the fact that you only have a wattage rating suggest it might be a USB PD charger. If so you'll only get 15W. To get 45W the source and sink need to negotiate a higher voltage...
View ArticleBare metal, Assembly language • Re: pi 4B assembly UART
Hi rgz,I didn't dive too deep into your issue, but instead put something together to achieve what you were trying to do. Perhaps by comparing mine vs yours, you'll work out what was wrong.I created...
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