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Without SD Card: When I power on the Pi with no SD card, the Red LED is solid and the Green LED (ACT) is also solid. With SD Card: As soon as I insert a flashed MicroSD card and power it on, the Red ...
Amina Benmaghnia's user avatar
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40 views

I have two RPi 4b boards and two NRF24L01 PA modules. The goal is to connect two Raspberry Pi 4b boards via NRF to send and receive signals. I am trying to follow this atricle. I only changed from ...
Elmar's user avatar
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1 answer
105 views

I am cross compiling using Eclipse on amd64 Ubuntu 20.04 Host with target rpi4 aarch64 running Debian12 (bookworm) I am using cross-compiler from sourceforge: cross-gcc-12.2.0-pi_64.tar.gz For sysroot ...
lachlan's user avatar
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0 votes
0 answers
45 views

I need to connect two normally open buttons to my Raspberry 4 and read when they are pressed. I decided to try with the GPIO 16 in order to understand if pull up logic works as expected after set up, ...
E.Benedos's user avatar
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0 answers
64 views

in the past I was able to compile QT with EGLFS on Raspbian Buster. I don't remember exactly how I did it, but it uses FKMS driver. Back then full KMS was not supported on Pi 4. I read that these days,...
Aros's user avatar
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1 answer
124 views

I have the following dockerfile: # Build stage FROM rust:1.90-bookworm AS builder # Install build dependencies RUN apt-get update && \ apt-get install --no-install-recommends -y pkg-config=...
conscience's user avatar
  • 515
6 votes
2 answers
148 views

I have recently been learning how to program bare metal to write a kernal for the rpi4b. The last thing I needed to add was a way to have the main script only run on one core. The method I decided to ...
MsFormula's user avatar
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1 vote
1 answer
93 views

I’m running a Python project on a Raspberry Pi (Debian / Raspberry Pi OS, Python 3.9.2). The project has its own virtual environment (.venv), and I launch it with a script (alsv4) that starts multiple ...
May Ochia's user avatar
  • 13
1 vote
1 answer
97 views

Background I'm developing a physical python-based application on a Raspberry Pi 4 with a basic UI, at the end of which I present the user with a photo to download. To do that, a QR code is presented ...
Sam's user avatar
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0 answers
129 views

I am currently writing a small bare-metal OS for Raspberry Pi 4b for the AArch64/Arm64 architecture. Unfortunately the OS hangs after enabling the MMU on real hardware. When testing the OS in QEMU ...
CallmeEchoo's user avatar
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0 votes
1 answer
140 views

I'm a sophomore in college working on a personal project involving an embedded Raspberry Pi and HDMI out. However, I'm running into a very strange problem when displaying certain characters to the ...
JuneTheMistborn's user avatar
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0 answers
88 views

Got this error just after booting my raspberrypi 4 with raspberrypi no desktop environment while starting bluetooth service. Now this one Jun 21 20:22:27 rpi systemd[1]: Started bluetooth.service - ...
Aditya Sharma's user avatar
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0 answers
68 views

I recently got a "Basic Fingerprint Sensor With Socket Header Cable" from Adafriut for an assessment for my studies. I had some code running and the sensor was working but not to the right ...
Epilox's user avatar
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2 votes
1 answer
222 views

I have project that involves taking a picture every one hour with a Raspberry and saving it to Google Drive. I'm using the google-api-python-client to connect to a Google Drive and apscheduler to ...
Pablo Rios's user avatar
  • 23
0 votes
1 answer
75 views

I have a Raspberry Pi 4 that I use at different locations to run a digital display. I use this script to run at reboot so that I don't have to determine the IP address each time and just start ...
Jennifer Hamilton's user avatar
  • 99
1 vote
1 answer
153 views

I currently work on a project on a Raspberry Pi using c++. I have problems streaming german special characters to the terminal. I wrote a logger::log() function and use it inside a classmethod. If I ...
Hank Gordon's user avatar
  • 147
-1 votes
1 answer
76 views

i have a python application, that contains functions to be called by interval. def call_repeatedly(interval, func, *args, **kwargs): stopped = threading.Event() lock = threading.Lock() # Lock ...
Pythonaire's user avatar
  • 1
0 votes
2 answers
228 views

I try to get the mouse position on my Raspberry 4. I used pyautogui in the past, which was working fine. But on the Raspberry the mouse position returned by pyautogui is stale. Other functions on ...
HEP's user avatar
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1 vote
0 answers
169 views

it's time to ask a human :). I'm trying to write a DT-Overlay for my own MCP2515 driver (just for learning purposes) and have troubles with the Interrupt-PIN configuration. I'm using raspberry pi 4b ...
Andreas C's user avatar
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1 vote
1 answer
143 views

I'm trying to get going on bare metal programming with my rapsberry pi 4b and I'm encountering an issue when trying to run it on 64bits. Whenever I try to write to the GPIO SET0 register, the program ...
Luca Seelbach's user avatar
  • 11
0 votes
1 answer
338 views

I am following a tutorial (https://gitlab.com/qnx/quick-start-images/raspberry-pi-qnx-8.0-quick-start-image/-/wikis/Getting-Started) to flash QNX image onto Raspberry Pi 4. I copied the QNX image (com....
Hosein Zarifi's user avatar
  • 69
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0 answers
158 views

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 ...
Malum Phobos's user avatar
  • 125
0 votes
1 answer
88 views

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 ...
Virtual Wizard's user avatar
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2 votes
0 answers
107 views

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 ...
Aros's user avatar
  • 181
1 vote
0 answers
34 views

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 &...
McCo's user avatar
  • 33
-1 votes
2 answers
338 views

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 ...
Joerg55's user avatar
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0 votes
0 answers
283 views

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 ...
Popyd10's user avatar
  • 23
0 votes
1 answer
451 views

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 ...
Genesis Coronel's user avatar
  • 1
1 vote
2 answers
670 views

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 ...
louigi600's user avatar
  • 753
0 votes
1 answer
87 views

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 ...
Florian's user avatar
  • 388
1 vote
0 answers
150 views

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". ...
arkapravo sen's user avatar
  • 11
0 votes
0 answers
88 views

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 ...
Farouk's user avatar
  • 7
2 votes
0 answers
51 views

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 ...
Wessiez's user avatar
  • 41
0 votes
0 answers
126 views

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 ...
Andi Riese's user avatar
  • 1
1 vote
0 answers
75 views

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 ...
UnmiLou's user avatar
  • 11
3 votes
0 answers
543 views

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....
Kevin Oliveira's user avatar
  • 41
1 vote
2 answers
1k views

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 ...
always_learning's user avatar
  • 145
-1 votes
1 answer
152 views

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 ...
Takuhii's user avatar
  • 977
1 vote
0 answers
53 views

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/...
Hashan Senarathna's user avatar
  • 11
1 vote
2 answers
125 views

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-...
Jim JR Harris's user avatar
  • 663
0 votes
1 answer
293 views

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 ...
Dean's user avatar
  • 3
0 votes
1 answer
228 views

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 ...
MaxWeb's user avatar
  • 169
1 vote
0 answers
295 views

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 ...
Justo Pla's user avatar
  • 11
1 vote
0 answers
367 views

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 ...
confusedJohn's user avatar
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0 votes
0 answers
139 views

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 ...
ALP's user avatar
  • 21
0 votes
1 answer
69 views

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 ...
Martin Trueman's user avatar
  • 45
0 votes
1 answer
529 views

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 ...
Taurwain's user avatar
  • 1
0 votes
1 answer
2k views

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 ...
Elementus's user avatar
  • 1
2 votes
0 answers
97 views

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 ...
Sathish's user avatar
  • 411
0 votes
0 answers
194 views

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:...
KevinOB13's user avatar
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