Beginners • Re: vc4drmfb second framebuffer
Ah, so it's purely userland driven -- back to my C/C++ development court.Thank you so much for the project references -- they will come in handy.Statistics: Posted by rhurst — Wed Jan 17, 2024 6:17 pm
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Beginners • Re: How to tell when headless Pi 5 has fully shut down
TIL there is a heart beat feature PeterOStatistics: Posted by PeterO — Wed Jan 17, 2024 6:45 pm
View ArticleBeginners • Re: Installing OS in an SD Memory Card for Raspberry Pi 5
Currently using a 512 GB uSD on a Pi 5. Not by choice, but it's what I had on hand until an SSD arrives.The bigger they are, the more stuff you'll lose when the go kaput.SSDs will last much longer and...
View ArticleBeginners • Re: Cannot connect HDD hub to Raspberry Pi 4
Oh, yes I forgot to mention that it has an external 12V power supply.But could it still cause power issues with the 5V usb?Can I test it with a current clamp if it draws too much current?Statistics:...
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Beginners • Feedback on prototype LED matrix layout
Hi, I'm relatively new to building circuits with the Raspberry Pi and was hoping for some feedback on the attached layout. My goal is to create a 15x7 matrix with these LEDs I purchased [1]. Note that...
View ArticleBeginners • Homemade power supply for portable use of Raspberry Pi 4
Hello everyone, I come looking for help. I'm trying to power my Raspberry Pi 4 in a portable setup using a 6V 4A battery. I've attempted to connect it through voltage regulators; first using the...
View ArticleBeginners • Low Sampling Rate on Waveshare ADS1256 Raspberry Pi Board
I recently acquired an ADS1256 Raspberry Pi expansion board from Amazon https://www.amazon.com/High-Precision-A ... B083WN119J and have encountered an issue that I'm hoping to get some help with....
View ArticleBeginners • Re: Low Sampling Rate on Waveshare ADS1256 Raspberry Pi Board
For a test, you could modify the code to measure the time needed for ADC read and file write. This test shows the possible bottleneck.- in a loop, do ADC.ADS1256_GetAll() only a thousand times and...
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Beginners • Re: Keyboard Layout Handler dissapear on bookworm
Koge, thanks for the code sample (Bard, thank you, too! ),The code sample is very useful. However, in the past few days (or is it weeks? anyhow...) I have tried several similar hacks, to no avail. The...
View ArticleBeginners • Re: Homemade power supply for portable use of Raspberry Pi 4
However, I haven't been able to make it work. Am I doing something wrong? Guess the battery is a lead battery ? Look for "lead battery 6v datasheet discharge voltage" diagrams: during discharge, the...
View ArticleBeginners • Re: WiFi out, icons missing - help?
Try right clicking up where the wifi icon should be and re-adding it.Statistics: Posted by skinmarquee — Thu Jan 18, 2024 10:18 pm
View ArticleBeginners • Re: Raspberry Pi with Door sensors
It’s for real life for the wait time between paying and entering a car wash. So one car is one unit that’s being measured, doesn’t matter how many people are in the car. The magnetic switch on each...
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Beginners • usage of sudo i2cdetect -y 1 shows no device address
Hi, I am trying to set up i2c so i can write python code to work with mpu6050however, when i run sudo i2cdetect -y 1i get the attached screencapIm trying to follow this...
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Beginners • Re: Making a GUI for the RPI CM 4 connected to a ST7789v TFT,...
...- I was able to rotate the image by changing the "0x36" parameter from 0xA8 to 0x60. i based this on some online findings, but i need to research it further because it makes red and blue color...
View ArticleBeginners • Re: usage of sudo i2cdetect -y 1 shows no device address
Aside from using a tutorial that's 6 years old have you checked all your connections are soldered in (or using dupont cables with plugs/sockets)? Have you got the ground connected between the MPU6050...
View ArticleBeginners • Re: Static IP issues, instructions on the net dont work
...I have no problem setting up static ip using raspi-config. If you're using Raspberry Pi OS, configure through raspi-config and nmtui should works fine. Or you can just setup static ip bind to your...
View ArticleBeginners • Re: Noob - My samsung 256gb sd card says only 4mb in the windows...
@nickoxfordWhile you are here please learn to use the correct units. Like Linux, the characters are case sensitive. G and M, not g and m. m is milli which is 1/1000. b and B are often used for bit and...
View ArticleBeginners • Creating an image file from an existing boot drive
I've successfully installed my OS on a left over 250 GB sata SSD with a USB adapter. I'm now able to boot from this drive with must faster results than from an SSD card. Using a Pi 4 w/ 4 GB RAM....
View ArticleBeginners • Non-root startx as service gives xf86OpenConsole: Cannot open...
Hello All,New to the forums. I just picked up a RPi 5 and moving my items from my 4 over. I seem to be having an issue with running startx as a non-root user, BUT! only when I try to run this as a...
View ArticleBeginners • Re: Creating an image file from an existing boot drive
You can always use the search box up above. It'll return many post about this sort of thing. viewtopic.php?t=352274Works well for other searches too.Statistics: Posted by memjr — Fri Jan 19, 2024 8:11...
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