Questions tagged [pi-4]

For questions that apply specifically to the Raspberry Pi 4 and not other/all models.

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2answers
45 views

IR not working on Pi 4 - how to troubleshoot?

I've sunk about a week into trying to receive infrared on RPi v4. I've worked through the LIRC docs and a number of tutorials. I am using the VS1838 IR receiver. I actually have 2 which I've been ...
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0answers
21 views

Boot Raspberry Pi 2 with SD card from Raspberry Pi 4

I have a working setup inside SD card, which I used on Raspberry Pi 4 successfully and now I want to use it also on Raspberry Pi 2. Currently I cannot make it run. It shows always initial multicolored ...
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1answer
46 views

Can a Pi 4 manage a home surveillance network of 4 or 5 FHD cameras?

I need to set up a CCTV system for my home on the other side of the world as it's near a sketchy stretch of the alley that I can monitor from here. I need at least 4 to cover 4 sides and possibly a ...
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1answer
91 views

Using Raspbian OS Debian 11 Bullseye cannot get second hdmi monitor to set to anything other than 4K

Tried: using raspi-config.Setting second and first monitor to 1920*1080 editing /boot/config.txt hdmi_group=1 hdmi_mode=16 Screen Configuration tool.Found in GUI menu. This tool shows second screen ...
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2answers
155 views

Is the latest Raspberry Pi OS Bullseye trustable?

I,m thinking of upgrading my Pi-Os and I do not know for sure if Bulleseye is fully trustable and might have a glitch on me. Does it have aney problems, can I trust it, or is it dangerous or hard to ...
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1answer
62 views

Raspberry Pi 4 booting/working slow [closed]

Recently my RPi 4 got crashed and I had to reboot my sd card with OS, I was using the Raspbian's 7th april 2021 release, but when I loaded it again my pi started working slow it even booted in 2-3 ...
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0answers
37 views

Raspberry Pi 4 Model B Project: IoT Parking Apps with Car Plate Recognition for Smart City using Node Red

recently I found a project that involves using Raspberry Pi and Arduino Mega Board to create a Car Plate Recognition system but I am stuck with connecting the pins as I am not a professional in using ...
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2answers
711 views

Fix error "Failed to start DHCP Client Daemon" after upgrade to "Bullseye" remote?

I did an upgrade to Bullseye and rebooted. I can't login with ssh (also he does not answer ping) and on screen I see the error Failed to start DHCP Client Daemon. Now the big problem: the pi password ...
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1answer
34 views

Is it safe to drive the ENA+, DIR+ and PUL+ ports of a stepper motor driver with a 3.3v pin from the RPi 4 GPIO header?

I'm using this Cloudray 2-phase stepper motor driver DM422S to drive this Cloudray Nema 17 stepper motor (52Ncm 1.8A). I connected the signal ports for ENA+, DIR+ and PUL+ of the motor driver to the 3....
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0answers
185 views

Raspberry Pi4 Camera supported=0

I have a Raspberry Pi 4 Model B and I am trying to connect the board with Raspberry Pi camera module. I made sure that the camera is connect correctly to the insertion slot. And the camera is enabled ...
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0answers
20 views

Problem with connectig raspberrypi 4 through BT with smartfone

When I try connect smartfone with raspberry , pairing is O.K. but i receive information - " Connection failed. No usable services on this device". On Ubuntu with the same Raspberry and ...
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1answer
152 views

Unable to install Snap-Store on Rpi-4b

I have had a problem with snap-store app on my raspberry pi. I installed it using these steps that I found on line in the command line: sudo apt update sudo apt install snapd sudo reboot sudo snap ...
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0answers
17 views

How to use ctr + alt

So I am German and usually "ctrl + alt + Q" makes the @ (email) symbol. On my Raspberry Pi 4. However, after changing the keyboard language to German, I can't seem to access any characters ...
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1answer
62 views

Can I add a second processor to pi 4b 8gb? Is it even possible?

I want to get more than the most possible performance out of my pi 4b. I was looking around, and I saw it was possible to get just the processing unit for the pi 4 without the rest of the pi. I ...
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1answer
46 views

Trying to setup a Raspberry Pi 4 as a linked wifi/ethernet router

Thanks for the help with this. My colleague and I are trying to setup a RPI 4 as a router not connected to the internet. It is just for the purposes of connecting multiple wifi controllers together. ...
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0answers
31 views

Raspberry Pi | Data Communication | Process Data

I need to receive electricity data from a charge controller with a raspberry pi and process these data on the hmi screen. How can I get accurate information about raspberry pi data communication, how ...
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0answers
22 views

How would I be able to connect a Raspberry Pi CM4 to another PCB that has extra IO?

How would I be able to connect a Raspberry Pi CM4 to another PCB that has extra IO? I would be thinking some sort of ribbon cable but I am also interested in how the Pi top connects its two PCBs.
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0answers
111 views

Kdenlive not working when i open it

When i open kdenlive in raspberry pi os(the newest one bullseye) it crashes after opening it. I download kdenlive like this= sudo apt install kdenlive and if i run kdenlive in terminal i get this: ...
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0answers
16 views

Is Pi 4 in Access Point mode slower than as a WiFi client?

I see multiple sources that confirm that the Pi 4 can reach practical WiFi transfer speeds of ~100 Mbps as a WiFi client. When I follow this tutorial on turning it into a wireless access point, ...
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0answers
31 views

Unable to open pycharm on raspberry pi 4

when i type ./pycharm.sh in terminal it throughs the following error: "Error occured during intialization of VM java/lang/ClassFormatError: Unknown constant tag 101 in class file java/lang/...
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2answers
31 views

Booting issues with pi 4

My raspberry pi isn't booting, I get the rainbow splash screen then the raspberry pi icon then the system crashes with no logs or any reason for crashing. I have tried the software NOOBS and followed ...
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1answer
38 views

Set up multiple WiFi Networks (Phone hotspots)

I want to be able to connect through different phones' hotspots (Pi4 - operating system of last June - the Pi has a static IP). I am only able to connect to the latest phone that was connected and ...
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0answers
49 views

MC Bedrock Server with existing world on Raspberry Pi4

Me and my friends have a MC PE survival world, and we can only play when I am online (As the game is on my device). I was looking into putting the game onto a raspberry pi4 so anyone can play whenever,...
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0answers
22 views

how to install chrome on rpi4? not a duplicate, i need answer [duplicate]

Does anyone know how to install chromE(not chromIUM) on a raspi 4 without virtualization and stuff like exagear? i dont really care if it is hard to do but i need chrome on raspi4 running latest raspi ...
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0answers
88 views

How to decode Chevy TPMS on 315Mhz using RTL_433

I'm trying to decode Chevy TPMS signals from this ACDelco sensor. Its a 315Mhz sensor. This is the FCC datasheet for the sensor. I have this activation tool for the sensors I have a Raspberry Pi and ...
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0answers
56 views

Thonny returns error when installing nextcord.py package

When trying to install nextcord.py from the thonny package manager, this exception is raised, no matter the version: Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple ...
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0answers
42 views

Bluetooth stops working after using HDMI audio output

I have been unable to hear anything from my rasberryPi4 out of my wireless headphones just after I used the HDMI port on my monitor (which also stopped working at the same time). I know that the issue ...
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0answers
34 views

Cannot connect to rasp4 via Hostname anymore

I have a raspberry pi 4 with RaspberryOS. I am doing a few tests with socket programming, and I used to able to connect using hostname 'raspberry' only, with which I could get the ip address of the pi,...
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1answer
129 views

How to expand the volume of Fedora 35 Server?

Perspectives Actually I was looking for Pi OS AArch64 but it was a beta version. It's suppose to me Fedora 35 Server AArch64 would be the best alternative of Pi OS AArch64. Actually Fedora 35 Server ...
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0answers
17 views

Slow serial encoding between Pi4 and Arduino for object tracking

I have been working on a project that involved in Object tracking. I have been using the OpenCV and mobilenetSSD_v2 as my model with a google coral, the video itself has a bit of delay but it's still ...
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0answers
30 views

VLC video streaming on raspberry pi generates stream_out_standard error

I am trying to stream video using raspberry pi 4. I attached a raspberry pi camera to the board and enabled the camera in the config. I have also installed vlc to the rspi and created a rtsp-stream.sh ...
2
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1answer
54 views

How to send Data from the Ras Pi Pico to Ras Pi 4.0?

I have a Ras Pi Pico which I am using for data collection due to the required sampling frequency. I would like to collect that data and send to the Ras Pi 4.0 so I can use the data elsewhere. Is this ...
1
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1answer
33 views

RPi4 is not detected by the modem after a certain time (ethernet connection)

I try to use a RPi4 B as a server (to setup netxcloud, PiHole, etc). To do this I connect it to the modem via ethernet connection as showed in this picture : At first it works, the RPi is detected as ...
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1answer
348 views

How to configure wine and box64 emulator on pi 4b

I have a raspberry pi 4b 8gb running ubuntu 21.10 desktop that I use. I want ot expand the uses of my pi and I want to run some windows programs. I installed pi-apps, a program helps you install ...
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3answers
36 views

omxplayer runs at startup - unable to close it

I've got myself in a spot of bother on my PI4. I set up omxplayer to play a video on repeat at startup not realizing that I wouldn't be able to interact with it - meaning I cannot close it. I've tried ...
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2answers
61 views

Unable to verify raspbian OS using raspberry pi imager

I'm trying to install raspberry pi OS on my SD card with the help of raspberry pi imager. the problem is that it writes successfully but when it's time to verify it ends with an error saying "...
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0answers
42 views

Pi 4 Debian buster install latest version of R - 'buster-cran40' is invalid

I have a Raspberry Pi 4 running Raspbian (Debian buster). I am trying to install a recent version of R. The default R version installed with Debian buster is 3.5.2. This is way out of date and many R ...
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1answer
312 views

Problems installing blender on a Raspberry Pi 4

I am attempting to install blender on essentially a new Raspberry Pi 4. After running both apt-get update and apt-get upgrade, I get the following error message when running apt-get install blender: ...
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0answers
60 views

What would be the best Linux distro for setting up a NAS/Media server on my RPI 4 Model B?

I have a question that is kinda related to What's the best media server solution for RPi4 for remote watching?, but my concerns/requirements are a bit different. Basically, I have a RPI 4 Model B (...
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0answers
66 views

How to install internet explorer and/or x86 emulator on raspbery pi 4b

I have a rasbery pi 4b 8gb and I want to install internet explorer on it. I am running ubuntu 21.10. I tried installing internet explorer 8 with PlayOnLinux and the installing window says "...
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0answers
51 views

I cannot save data sent from Arduino Uno to Raspberry Pi

I am trying to send sensor reading from Arduino Uno to raspberry pi and I want to save this incoming sensor reading to SQLite which I downloaded to Raspberry pi. I used lm35 sensor on Arduino Uno and ...
0
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1answer
36 views

Raspberry pi 4b Network Scanner, network interface file issue

I am brand new to raspberry pi and have been trying to follow a few tutorials to try to set it up as a network scanner (https://www.hackster.io/aallan/a-raspberry-pi-network-scanner-e3dbbc , https://...
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1answer
190 views

L298n driver with 3.3V Voltage

I am using L298N motor driver for DC motor. First, I tested the motor with Arduino, by giving PWM signals to the enable pin of the L298N pin. I have two questions: Arduino can supply average 5V ...
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1answer
77 views

Raspberry Pi 4b choppy mouse and keyboard input

I just purchased a Raspberry Pi 4b with 4 GB of RAM. It came with a power supply and a 16 GB microSD card with Pi OS (Raspbian) pre-installed. I started it up and ran through the initial ...
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0answers
27 views

Application to rotate PI

We wrote a small application for end-users to rotate the screen on the Raspberry PI 4, so they would open the application and click the rotation they need. If I change the orientation manually in /etc/...
1
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1answer
58 views

After shutdown/poweroff command, is it possible to damage a pi (4) by leaving the Powercable in?

So I have a Raspberry Pi 4 type C 5V 3A adapter plugged into the power extender thingy at all times. My question is, once you type the poweroff command into the terminal and see the device turning off,...
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0answers
14 views

Displaying an image on startup

I'm making a custom sheikah slate model, and I thought a screen displaying the map would be a very cool addition. The model will have no way of interacting with the Pi outside of turning it on, so it ...
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0answers
20 views

Pycharm support?

I want to learn Python using PyCharm editor. What operating system (Raspberry OS) does PyCharm support?
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0answers
124 views

AirPlay to two displays using RPiPlay

I was wondering if it is possible to use RPiPlay with two monitors to extend my Macbook display. I tried connecting the two HDMI ports to the Raspberry Pi but, RPiPlay uses only one HDMI port for ...
0
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0answers
32 views

Serial communication over uart - Android raspberry pi 4

Is there a library/source code available for serial communication over uart for the raspberry pi 4 running Android?

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