Newest Questions
37,665 questions
0
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PI4J SPI - getting old data
I have a weird issue with receiving data over SPI - I'm always getting "old" data - the data from previous transmission, not the current one.
I want to communicate between Raspberry and ...
- 99
1
vote
2
answers
32
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Raspi Camera is not detected by the raspberry pi
I would like to ask for help about my raspi camera. I have a raspi camera version 2. And I am trying to check if it is detected already using terminal by typing
cvcgencmd get camera
It shows
...
0
votes
1
answer
50
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Raspberry Pi 5 lagging out when using bluetooth
Information:
-Raspberry pi 5, 8GB Ram
-OS: Official Raspberry pi OS (64 bit)
-Official Raspberry pi 27W PSU
-Using realvnc & IDE server(vscode) to access the pi
-Generic TWS earphones and BT ...
1
vote
4
answers
51
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Keyboard Matrix And Pull Up Resistors
I have a question about pull-up/pull-down resistors on the Raspberry Pi Pico.
To be as brief as possible - I am trying to create my own keyboard for the learning experience and I wanted to use the ...
- 19
1
vote
0
answers
18
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My motor encoder is rotating but on Rviz2, it didn't
I'm working on a custom LIDAR using TF Luna and rotating it using a motor with an encoder for mapping purposes.
As the title says, the rotated angle is not being updated to Rviz2 , resulting in a ...
- 11
1
vote
1
answer
26
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Docker container not running unless I ssh into RPi
I don't think this problem has to do with Docker at all, but I'll describe the symptom first. I'm running a RPi 4 model B, with 2024-11-19-raspios-bookworm-arm64-full flashed on the SD card a few days ...
- 121
0
votes
2
answers
48
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Detected under voltage and then my Pi4B stopped working
some minutes ago the OS detected undervoltage in my Raspberry Pi 4 B and then the Pi gone down and stopped working... i tried using voltmeter to measure the voltage of the GPIO and it is almost good (...
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-2
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1
answer
33
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GPIO failed with crontab on a raspberry pi zero W
I'm using a Raspberry pi zero W.
I wrote a basic demo script in python which consists in displaying a picture on an OLED screen then it waits til a button is pressed in order to replace the picture ...
- 79
0
votes
1
answer
34
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Kernel Panic when using USB device for OS
I am trying to run Raspberry Pi OS bookworm on my Raspberry Pi 4 B 8GB from a Kingston DataTraveler Exodia 128GB (DTX/128GB) and it was working perfectly till I tried to use apt-get full-upgrade which ...
- 1
0
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0
answers
19
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How can I play HLS/DASH (.m3u8 / .mpd) streams on a headless Raspberry Pi without installing VLC?
I’m building a wall‑mounted info screen using a Pi 4 running Raspberry Pi OS Lite (no desktop). I need to auto‑start a set of M3U8 and MPEG‑DASH streams (traffic cams + NASA TV) in fullscreen with ...
- 1
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votes
1
answer
36
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I2C PCA9685P Raspberry Pi5 in C
I have been trying to work with the Upgraded Pan Tilt Platform for Official Raspberry Pi Camera Module which uses a PCA9685P. However, the web appears only to support data sheet for the PCA9685. This ...
- 11
-4
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answers
18
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Need Raspberry pi zero 2W, raspberry cam 5MP (with cable 15 20 pins)
For the banknote disinfector and reader project, I need a Raspberry Pi Zero 2W and a Raspberry Pi Camera 5MP. I'm from South Africa, so I'd like to find these components. Please help.
- 1
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0
answers
40
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Raspberry Pi Camera Flask OpenCV Streaming
I am setting up a flask application on a pi zero to stream video via LAN. The camera can take normal pictures using libcamera-still command line, but when trying to stream the video the below blurry ...
1
vote
2
answers
55
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Adding USB drive to fstab does not mount on boot, but mounts as expected from shell
I want a USB drive to always mount when booting. I am able to mount a USB drive inserted into a Pi4 using this command:
sudo mount /dev/sda1 /mnt/usb -o uid=pi,gid=pi
sudo blkid gives this:
pi@pi:/mnt/...
- 291
0
votes
0
answers
25
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FFMPEG v4l2m2m HW transcode on Pi3B+?
I have a RPi3B+, and I wish to test transcoding capabilities (h264->h264) with ffmpeg:
ffmpeg -c:v h264_v4l2m2m -rtsp_transport tcp -i 'rtsp://admin:admin@camip:camport' -c:v h264_v4l2m2m -pix_fmt ...
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