Questions tagged [raspbian]
DO NOT use this tag for new questions; Identify actual OS e.g. Raspberry Pi OS-Buster Raspbian renamed Raspberry Pi OS (32-bit) is a family of GNU/Linux operating systems derived from Debian. Version numbering follows that of Debian and the current stable is 11 (Bullseye). Raspbian is the most widely used Pi based distro and the one recommended by the Foundation, who distribute their own customised images.
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How to uninstall zram from Raspberry pi 2?
I installed zram from https://github.com/foundObjects/zram-swap but I am experiencing some lag issues.I cant find the command to remove it from Rpi.
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How to set the SPI comms delay from CS to SCLK?
I am using a Raspberry Pi to communicate with a SPI-enabled device over the 40-pin cable. To the best of my understanding, the Python scripts rely on the SpiDev device. The script uses the xfer3() API ...
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Is it safe to power a Raspberry Pi Zero W with a Fritz!Box USB-port?
As many others im getting a Zero W for PiHole and i would like to power it using the usb-port of my wifi router. However, im concerned about undervoltage. I read the Zero W wants 1,2A, but usb 2.0 ...
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Printing a image in the mini thermal receipt printer adafruit using raspberry pi
I have opened the command prompt on a Raspberry Pi and typed the command as:
lp -d ZJ-58 -o fit-to-page /home/pi/Documents/image_name.bmp
which produces the gibberish printing as follows:
Could ...
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483
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How to connect USB CDC devices?
I have a Zebra MC3300XR SERIES RFID reader that support USB CDC, how can i read the scanned RFID programmatically in the raspberry pi? is it possible?!
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Force internet connection via wlan0
I have a Raspberry Pi connected via Ethernet to a local LAN that doesn't have internet.
This Raspberry has a static IP fixed as 192.168.1.23 since we need each device in this LAN to have an specific ...
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1
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Connecting to wifi and ethernet at the same time
Device: Raspberry PI 4
OS: Raspberry Pi OS
I have a setup pihole to run on my Raspberry PI with the below network setup.
Wifi - Connected to Guest Network(Static IP: 192.168.1.56)
Ethernet - Connected ...
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Thermal mini printer receipt adafruit printing gibberish
I have written a very simple program in python to print the text value in the mini thermal receipt printer adafruit.
Code:
# On a CircuitPython microcontroller:
import board
import busio
import serial
...
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154
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Node.js RPI 4B problem with GPIO
I started doing the Node.js and RPI tutorial from w3schools.com. I created a server to control an LED with a button on a prototype board or via http but the LED does not light up. It seems to me that ...
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IR-Keytable support for the variable frequency & modulation
I am working on the RPI-CM4 with the ir-keytable library.
I am using the TSMP97000 sensor to read the modulated data from the IR transmitter(Remote).
it-keytable library is working successfully with ...
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Samba compressed transfer over network under Raspbian?
I am currently using a Raspberry Pi 3 A+ as a NAS, and the bottleneck is the 100Mb ethernet adapter I am using.
Is it possible to configure Samba to automatically and transparently compress/decompress ...
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409
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CM4 USB connection issues
We have rolled our own board for the CM4 and the problem occours when connecting an UMTS stick (Huawei E3531 HiLink) to USB. The CM4 starts to disconnect and reconnect the stick continuously.
This ...
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1
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apt issue, unmet libc6/libc-bin dependencies
I was in the middle of upgrading to Bullseye from Buster when my SSH session failed, and I couldn't ssh into the machine anymore. I rebooted it, and now am presented with this problem.
I have ...
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libcamera stack does not work with Bullseye
On a RasPi4, the HQ-Camera works well with the legacy camera stack, but not with the libcamera stack. I did an update from Buster to Bullseye.
$ uname -a
Linux raspberrypi 5.10.89-v7l+ #1506 SMP Fri ...
- 351
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2
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759
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BlueZ Profile RequireAuthentication=False not working when trying to initiate connection without pairing
Following up from this question:
How can I open a connection to my Raspberry Pi over Bluetooth without having to pair?
I am trying to connect from my Windows Laptop to my Raspberry Pi over Bluetooth ...
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90
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install display on raspbarrypi 4 didnt work
i had the lite version installed of Raspberry os on my pi 4 - and now I followed this tutorial https://raspberrytips.com/upgrade-raspbian-lite-to-desktop/ to installing a display enviorment - "...
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Raspberry Pi doesn't recognize HP PSC 750xi Scanner
I have an old Pi-3 running Stretch. I have what apt-get install tells me is the latest version of everything installed. I plug in an old HP PSC 750xi All-In-One USB printer/scanner. The Pi recognizes ...
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116
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swap file falls off after reboot when move to USB flash
I trying move swap file to USB flash from SD card it work fine but after rebooting swap file falls off, command free -m show swap is 0
I move swap file to USB flash
dphys-swapfile swapoff
dphys-...
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1
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Install aquarea2mqtt on Raspberry Pi
Im new on Linux/Raspberry Pi and I have some problem with installing program from a file. Can You help me with that?
I need this project implemented in my Home Assistant (to view my heat pomp)
https://...
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GDBuss.Error.org.freedesktop.PolicyKit1.Error
I am using a Raspberry PI 3B+ for learning Python programming and some hardware design for PI3. I hadn’t turned it on for a while. Recently, I powered it up and it booted just fine. The second power ...
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Camera driver, updated or removed and now isn't working
My camera was working fine, but now it isn't being recognized anymore.
I tried to check if it was enabled on the Raspberry Configuration Interface tab, but the camera option isn't showing anymore.
On ...
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1
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Micro Switch code implementation
I'm working on a production counter that would count the material as it would hit the switch and that would be counted as 1. The issue I am having is that the code I wrote is not doing anything when I ...
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What exactly is "libarmmem-${PLATFORM}.so" and how to update it?
I recently got a problem involving /usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so: VLC was crashing when calling this library (which overrides memory related functions from libc6), and ...
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596
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RaspberryPi keeps reporting error: dpkg: warning: files list file for package 'xxx' missing;
I have encountered a series of problems, after a week of searching and processing still have no clue.
My Pi3B+ keeps reporting errors: "dpkg: warning: files list file for package 'xxx' missing; ...
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Continously running presentation "pauses" after one hour
I have a Raspberry Pi that is connected to a TV on its HDMI Port and to the Network over Ethernet.
After boot it automatically logs into the GUI with the pi user and automatically starts a ...
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151
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SD card isn't being detected by raspberrypi 3 B+ or my laptop
Raspberrypi 3 B+ was working yesterday, had the raspbian image flashed onto it and I was able to ssh into it headless from my laptop with no major issues. However, today it didn't boot up, so I ...
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2
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What is the default fstab file?
I was editing my fstab and somehow [spooky music] deleted it. As you can imagine this has caused some problems and I have searched online for the shape of the default file to no avail.
Can someone ...
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Is there a way to assign a different local IP address depending of the SD card I'm using for a single Raspberry Pi?
In order to clarify my question -
cat /proc/device-tree/model:
Raspberry Pi 3 Model B Rev 1.2
cat /etc/os-release:
PRETTY_NAME="Raspbian GNU/Linux 11 (bullseye)"
NAME="Raspbian GNU/...
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Message printed multiple times when pressing hard button with RaspBerry Pi
I'm trying to print a message every time a button is pressed, and so far it's working fine, but the message is printed several times (somewhere around 4000 times) and I'd like it to be printed only ...
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1
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BlueZ receive Bluetooth sensor information
Good afternoon,
First of all I apologize for asking questions in this thread but this is my first time writing on StackExchange.
I am doing a university work where it is necessary through a Raspberry ...
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Which is better to measure voltage and current,INA219 or current/voltage sensors? [closed]
Im doing a DIY battery and after that I want to measure the results and displaying the results in Raspberry Pi.
I wanted to know if the measurement could be better done using INA219 or voltage/current ...
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Reverse ssh tunnel stops working after a few hours
I have a Raspberry Pi Zero W (PiZeroW-1, Raspbian Buster)on a local network behind a 4G router with CGNat. To be able to communicate with it from elsewhere I have setup a reverse ssh tunnel that is ...
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Very slow USB flash drive on Raspberry Pi 3B+
Here are a few tests with an older Verbatim micro SD-card and the flash drive.
# write speed test:
sudo dd if=dev/zero of=temp.txt bs=1M count=1024 oflag=direct
# Read speed test:
sudo dd if=temp.txt ...
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517
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How to measure voltage and current of a battery with Raspberry Pi? [duplicate]
Im creating a battery,and I want to measure the current and voltage?Which possible circuits could help me?
To clarify my question,I doing a DIY battery and afer that I want to measure the results.So I ...
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463
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How Can I Send Data from Raspberry Pi to MIT App Inventor using RFCOMM
I want to Send a Data from my Raspberry Pi 3B+ to an MIT App that I created. I can send Data from my MIT to Raspberry Pi even to Arduino using rfcomm-server.py that comes from the PyBlueZ. but I cant ...
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3
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Can I upgrade my Raspberri Pi 3 Model B to a newer Raspbian version?
I have Raspian 9.13 on my Pi 3 Model B and it looks like it's "dead" (doesn't get updates anymore).
Are newer versions of Raspian compatible with older Pi models?
Is there a table on the ...
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most linux commands gives -bash: clear: command not found , after a binary execution (Raspberry pi)
what could be possibly wrong when following dmesg occurs in Raspberry pi
Following is Output of dmesg command,
[ 227.820110] mmc0: card 0001 removed
[ 227.820411] Aborting journal on device ...
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2k
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Raspberry pi 400 no sound over HDMI
I bought a Raspberry Pi 400 to connect it to my old TV (Telefunken) and make it a smart TV. I installed the latest Raspberry Pi OS, and everything works EXCEPT the sound. I connected the TV by the ...
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1
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Consumer eSIM solution Raspberry PI 4?
Disclaimer: I don't have a lot of knowledge about hardware and cellular networks so these concepts are quite new for me, I apologize for the lack of knowledge however I'm eager to learn more and make ...
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708
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Raspberry Pi defaults to Ethernet connection over Wifi
I have been trying to connect my Raspberry Pi to the internet through its built in Wifi, as well as controlling/ accessing the Pi via ssh though a Static IP address via the built in Ethernet port.
...
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I2C detectable but stopped working - using RasPi 3B, RaspbianOS (and MatLab/Simulink)
Dear community, I'm almost at my wit's end and would be so happy to receive help. It would be a great Christmas present to me if some of you take the time to read and provide inquiry, knowledge or ...
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Boots correctly but says "No HDMI signal" after finishing kernel boot logs
I have a Raspberry Pi 4 Model B (8GB), I have flashed the latest version of Raspbian into a USB flash drive and I boot it from there. I've had no problems so far. Today I restarted it after about 2-3 ...
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UTF-8 support on Raspberry Pi
I want to run a python program that receives the data through serial communication and saves it to a file, but after receiving the data this error shows up. Any idea? (code runs ok in Windows but in ...
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Any way to get sudo privleges without opening a command line in raspian? [closed]
Right now to get python scripts to run with user privleges in thonny with typing in this command from the command line:
sudo thonny
I can't close the command window without it closing thonny also
Is ...
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132
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Raspberry pi Wireless NAS router
I know there is a way to make the pi into a wireless router with USB WiFi dongle, and I know how to make the raspberry pi into a NAS, but is there a way I could do both on the same Pi?
The idea behind ...
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1
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710
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Adafruit ADS1x15 library - I2C Bus error even though I2C is enabled
I am developing a program for a client using the Adafruit ADS1x15 library to use an ADS1115 module on the Raspberry Pi. This is the relevant part of the code where the error is occurring:
import RPi....
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HDMI turns off after few seconds in Raspberry Pi 4
When I use capture card for display output it works fine but when i use monitor with HDMI output turns off after 2-3 seconds in Raspberry Pi 4
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Raspberry Pi cannot connect to network
Hopefully someone has experienced this issue before but it may be a long shot... I was transferring some large files via smb to an external drive setup on my Raspberry Pi when the connection died. I ...
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Raspberry Camera turns off everytime I pull the plug to restart
I'm using ivport-v2 and followed the guide to get my camera running. Went in sudo raspi-config enabled I2C and Camera, then reboot and everything works fine. However, when I pull the plug on my RPi it ...
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Why I am unable to import dronekit?
I have been following this website.
I have installed dronekit and dronekit-sitl as by using the following commands.
pip install dronekit
pip install dronekit-sitl
But the problem is that , when I ...
