1,409 questions
0
votes
0
answers
21
views
android cuttlefish aosp-android14-gsi virtual device booting error on raspberry pi 4b
I'm using android cuttlefish v1.0.0 docker image
docker-image-arm64 on raspberry pi 4b 4gb ram + raspberry pi os lite 64bit
$ cat /etc/rpi-issue
Raspberry Pi reference 2024-07-04
Generated using pi-...
- 35
-4
votes
0
answers
33
views
Manage SSL connections correctly for a NodeJS server running behind a no-ip dyndns domain [closed]
I've been setting up and running a NodeJS web application (ByteStash) on a Raspberry Pi 4 system without any issues.
It listens on port 5000 but it currently doesn't provide an HTTPS server. So using ...
- 16.5k
0
votes
0
answers
15
views
ADS1263 python voltage reference
For the code for ADS1263 I wanted to measure with voltage reference 3.3V which comes from Raspberry Pi. How command for this should look like?
The code is
import board
import busio
import ADS1263
...
- 79
0
votes
0
answers
20
views
Raspberry Pi 4 using composite video - how to get the right resolution? [closed]
I had an old Raspberry Pi project that used an composite video display of resolution 480 x 284. The old Pi died and Ive replaced it with a version 4.
Ive managed to get the composite video working ...
- 69
-1
votes
0
answers
19
views
Solution for not being able to connect to a bridge created with Raspberry Pi
I have a question about creating a bridge on Raspberry Pi.
I'm trying to connect to a bridge I created on Raspberry Pi from my iPhone, but the connection is not working.
The hostapd is active, and it ...
- 1
0
votes
0
answers
14
views
Scap tool for raspberry pi
I am trying to run DOD scap tool(https://public.cyber.mil/stigs/scap/) for raspberry pi 11 (Bulls eye) but it asking for specific perl library is any one have faced same issues
error:
root@root:/opt/...
- 1
0
votes
1
answer
40
views
Assembly program not clearing the gpio pin on my raspberry pi 4
How's it going, I figured that I would come back to this problem after a couple of months, I made a gpio driver in ARM64 assembly for the raspberry pi 4, but the clr0 offset isn't working for me to ...
2
votes
0
answers
55
views
QT show the same content on multiple monitors
I have this kind of info app that is supposed to show some info content. It's written in QT / QML. Qt version is 5.12.
It runs on Raspberry Pi 4 - Lite image, no X, OpenGLES. Now what if I wanted to ...
- 181
1
vote
0
answers
11
views
rfid card reading is OK but not finished
I have an USB RFID reader (EF4100 125kHz) connected to Raspberry Pi 4 Model B. The RFID reader is act like a keyboard and it read the first 10 digit. When I debugging the code with Thonny. At the &...
- 33
-1
votes
0
answers
54
views
import openai causes error while executing in a docker-container on a raspberry pi4b
raspberry-environment:
Debian, Release 12, Bookworm
docker-engine: 27.3.1
base-image: python:3.11
dockerfile-snippet: apt-get install -y apache2 apache2-dev libapache2-mod-wsgi-py3 openssl default-...
- 31
-1
votes
2
answers
59
views
Python Pydantic Module not found in Docker Container (Raspberry Pi)
I'm trying to transfer a Flask web app to a Raspberry Pi 4b using Docker. The container runs flawlessly on AMD architecture. The ARM architecture is to be tested on the Raspberry. The creation of the ...
- 31
0
votes
0
answers
68
views
Virtual environment marked as externally managed environemnt
I know that this error should be raised normally, but I am already working in a virtual environment, where the error should not be raised.
I created and activated a virtual environment on my Raspberry ...
- 23
-1
votes
0
answers
38
views
ffmpeg doesn't stop the playing track even after ending
I'm trying to run a 24/7 music stream on my Raspberry Pi 4. The .sh script works perfectly until the first track ends. After the track ends the script still sends empty data infinitely and so the ...
- 37
0
votes
1
answer
32
views
Autorun script in Raspberry Pi 4
I am trying to autorun my Python script whenever my Raspberry Pi 4 boots up or when I start connecting it to a power source, but I already tried different methods but didn't work.
By the way, my ...
1
vote
2
answers
129
views
QNX on RPi4 how do I login the first time
I did all the crazy stuff required to get the QNX RPi4 image. I cooked in the simplest way possible the SD image (cat qnx_sdp8.0_rpi4_quickstart_20241023.img > /dev/sda) and booted. I press on the ...
- 743
0
votes
0
answers
34
views
JavaFX not rendering properly on Raspberry Pi (aarch64)
We are trying to port a library of jars using JavaFX from Windows, where they currently run, to linux / aarch64.
Goal:
is to get them running on off the shelf ARM hardware, i.e. Raspberry Pi. (ideally ...
- 378
1
vote
0
answers
28
views
How do I stream data from my Neurosky Mindwave Mobile 2 to my Raspberry Pi 4?
I have managed to connect and pair my Neurosky Mindwave Mobile 2 to my Raspberry Pi 4. But when I try and stream data from the headset to my Raspberry Pi, my code says "No data received".
...
0
votes
0
answers
31
views
Syncing timed camera and LED flash on Raspberry Pi
I have a Raspberry Pi 4 which I have connected to an Arducam 64MP OwlSight Auto-Focus camera (ov64a40) and 2 neopixel jewel LEDs (7 x 5050 RGBW). I need to be able to take a photo every 30 seconds ...
- 1
1
vote
0
answers
56
views
python code running as a service to record and play audio
i have a python code running as a service on Raspberry Pi 4. The app is basically to record some audio in a certain language using a microphone, save the audio to a .wav file, then use ...
- 11
2
votes
0
answers
44
views
Playback / recording problems
The code I'm working on gives me some errors. This results in frame lost when recording.
The overview: A video is paused in the first frame. When the motion sensor is detected the video is playing a ...
- 37
0
votes
0
answers
49
views
Raspberry PI 4, Java, Pi4j: Unable to load libgpiod.so
I am trying to get Java and Pi4j to work on my new Rasperry Pi 4 B.
I followed pi4j's instructions exactly. With jbang or maven I have same problem.
The pi4j-example-minimal ist compiled and packaged ...
1
vote
0
answers
50
views
Generating random number (dice roll) and storing into array
I'm a new ARM programmer and I have a project that I'm working on where I generate a random number between 1-6 (simulating a dice roll) and store that value into an array. Then I want to print that ...
- 11
3
votes
0
answers
105
views
Problem installing the rpi-rgb-led-matrix library
I'm creating my first Python program using a Respberry Pi 4 to connect to a 16x32 LED Hub75 board. From what I've researched, this rpi-rgb-led-matrix library is the only one compatible with this board....
1
vote
2
answers
351
views
Building python3.13 with tkinter support on Bullseye on Pi4B
The Bullseye image's python3.9.2 finds tkinter, but I intend to have other versions of python3, all supporting tkinter.
First python3.12.5 was built from source and tried. The python 3.12.5 seems to ...
- 145
-1
votes
1
answer
56
views
Need to Understand Why Docker Stopped Working?
I have several Docker containers running on a Raspberry Pi 4b, they have all suddenly stopped working and I don't know why... If I try to update my containers I get this error
Cannot connect to the ...
- 925
1
vote
0
answers
36
views
yolov5 trained my data set on my laptop how I send it to my Raspberry Pi
I got yolov5 and trained my data set on my laptop now I want to send it to my Raspberry Pi 4b module for work. how I do it
direct copy to raspberry pi but not working
(myenv) h@raspberrypi:~/project/...
1
vote
2
answers
88
views
How do I ensure that my Python script and its child processes handle Ctrl-C properly?
System:
A Raspberry Pi-4 running Buster using Python 3.7 with an Adafruit 128x32 2.23" OLED Bonnet connected to the GPIO pins. Ref: https://learn.adafruit.com/adafruit-2-23-monochrome-oled-...
- 581
0
votes
0
answers
30
views
Does pyinstaller conflict inside venv in Python 3.11 on Raspberrypi 4?
I am everything else but an experienced programmer. A few years ago it seemed easy to make an executable using pyinstaller (Python 3.5 on a Raspberry 3). This time, I get a list of errors, which to me ...
- 57
0
votes
0
answers
44
views
How can I live stream in HDR using a Picamera Module 3 Noir and a Raspberry Pi 4? (using flask)
I am very new to all this. Currently i am working on a project where i am using the picamera module 3 noir and pi4 for live detection. Due to using the OS Lite version i use flask to stream in on my ...
0
votes
1
answer
94
views
A2DP SINK no audio when making phone calls
I am running LineageOS on a RaspberryPI for a car stereo head deck which is working extremely well.
I want to try to get bluetooth hands free working. I have enabled bluetooth settings which allow me ...
- 3
0
votes
1
answer
84
views
gpiozero combining button events in event driven code
I'm pretty new to the Python and Raspberry business and am currently working on my first major application. I like gpiozero and the ability to work with events throughout.
I would like to make my code ...
- 125
1
vote
0
answers
70
views
Error installing Mongodb 4.4 on Raspberry pi 4B 8Gb
I have 2 Raspberry pi 4B of 8 Gb, same micro SD card (make, model and capacity), same processor, same updated OS, they are almost a clone except for the installed applications, which are not unusual ...
- 11
0
votes
0
answers
85
views
VLC in python tkinter script, Raspberry PI, video playback stutters
I have developed a kiosk system that runs on a Raspberry Pi 4B. It runs Raspberry Pi OS Lite (bookworm) and openbox as window manager. The content (text, images and videos) is displayed by a Python ...
- 1
1
vote
0
answers
98
views
How best to capture a long exposure image on PiCamera2
I am trying to use a PiCamera to analyse the intensity of a light source. I have written some very simple code to image it. The light source is not very bright but I don't want any problems from ...
- 11
0
votes
0
answers
53
views
Using Python and awoxmeshlight or bluepy, cannot connect to an EGLO BTLE bulb, even if detected using hcitool lescan
Using a RaspberryPi 4B running Raspbian buster, I can run hcitool lescan --discovery=g and see the mac address of the EGLO bulb needed.
I have tried an example programme using awoxmeshlight (the bulb ...
- 1
0
votes
0
answers
28
views
How do I correctly implement control for GUI in raspberry pi 4
Here I have these code:
//the variables and struct I uses and struct definition
int menu_flag = 0; // initialised menu flag to 0
int selected_item = 0; // selected item flag to 0
int ...
0
votes
0
answers
31
views
A Python program using PyQt5 QTableWidget shows table header color correctly on Ubuntu but not on the RaspberryPi [duplicate]
To the reviewer who keeps closing this question, please note that this question is different to any sugegsted as being the same, in so far as I can set the table header color in Ubuntu, but not in the ...
- 1
0
votes
1
answer
35
views
How to remove and replace USB wireless dongle programmatically
I have a Raspberry Pi 4 (8G) with the Debian Lite OS, Rii Wireless keyboard and mouse.
The keyboard is fine, but the mouse freezes quite often while watching Youtube or video. My solution is to ...
0
votes
0
answers
23
views
Issue when debugging remotely with vscode to a rpi
I have a ssh connection to the RPi and it is working and alle the files transport correctly but I won't debug, when I run the dll on the rpi it works fin, can you guys help
I have this task.json
{
...
0
votes
1
answer
146
views
Raspberry Pi 4 Compute Module does not show output with HDMI display
I use Raspberry Pi 4 CM in bound with CM4-to-Pi4-Adapter. I've flashed a custom Yocto-image in that, using rpiBoot and RPi Imager for. Now I'm trying check my Raspberry's features, but when I try to ...
- 1
0
votes
0
answers
376
views
pygame.error: ALSA: Couldn't open audio device: Unknown error 524, What is going on?
I'm working on a function that takes text and turns it into a .wav file using pyttsx3 on an RPi4B, then using pygame it plays the .wav file (I know pyttsx3 has a built in function for this but we got ...
0
votes
0
answers
26
views
Service Worker cannot cache large videos
I am trying to implement a caching mechanism for a website with pwa functionality. My goal is to cache every page and its content that has been loaded. This works fine f.e. in Google Chrome (127.0....
2
votes
0
answers
50
views
setsockopt Timeout Not working Properly In Raspberry Pi
I am working with Raspberry Pi 4 with bookworm 64bit OS for connecting devices with TCP/IP.
I need some delay for socket timeout if no response from my server. The Raspberry Pi acts as a client. I am ...
- 389
0
votes
0
answers
113
views
The requested image's platform (linux/arm64) does not match the detected host platform (linux/arm/v8)
I try to build a docker image for my raspberry pi 4b which supports 64bits arch, but OS installed is 32bits (I can't change it).
uname -a
Linux raspberrypi 6.1.32-v8+ #1656 SMP PREEMPT Wed Jun 7 11:...
- 11
0
votes
0
answers
371
views
Error in device registration in Google Assistant
I followed the instructions to add Google Assistant to my Raspberry Pi 4. And in the step where I needed to register device for Assistant APi, it throws this error
Reached limit on number of clients ...
0
votes
0
answers
29
views
Start Address of rpi-4-b .dtb file
On the official website I can't find the "start address" it used for loading device tree blob file, so I decide writing a program traversal all of memory find the entry it stored the .dtb ...
- 23
0
votes
0
answers
20
views
Problem in receiving data from Ethernet interface of Heyer Vizor 12 Patient Monitoring Machine, on Raspberry Pi 4
Introduction:
I am working on a project in Ch. Pervaiz Elahi Institute of Cardiology at Wazirabad, Pakistan. In which, we are assigned the task to fetch patient's vital signs from the Patient ...
-1
votes
1
answer
159
views
How to install PyTorch and run .pt file in Raspberry Pi 4 B?
So i am trying to implement my yolov5 object detection model "best.pt" which i trained in custom roboflow collab notebook file which i have already downloaded in my desktop since it is where ...
0
votes
0
answers
50
views
How can I use threading and multiprocessing in python to allow functions to run constantly despite them taking different times?
I have a two functions that need to run constantly, but due to the fact they affect real world objects, there are certain constraints. I can't run the functions faster or slower or else the display ...
0
votes
0
answers
51
views
Is it possible to use pins 32-53 as GPIO on a Raspberry Pi4
My scenario is that I have a raspberry pi 4 using GPIO 2-27, and I am able to freely set the pins as inputs or outputs
print("Setting pins 2-8 as INPUTS with PUD_UP")
for pin in range(2, 9):
...
- 55