Raspberry Pi Stack Exchange Community Digest

Top new questions this week:

Is running code in a pauseless loop damaging to the Pico W?

While True in main.py Also good to know how inserting sleeps does or does not affect any clock cycles and if so by how much.

user avatar asked by Flood Score of 3
user avatar answered by Seamus Score of 2

Raspberry Pi 4 having issues reading from a RFID-RC522

I am following this tutorial to get my raspberry pi set up with an RFID module. Unfortunately, I cannot get it to work. Specifications Raspberry pi 4 Model B Raspbian GNU/Linux 11 (bullseye) Mifare ...

pi-4 rfid  
user avatar asked by Addi Score of 1
user avatar answered by dawi Score of 1

TigerVNC Server Crashes when Client Connects

I've installed "tigervnc-standalone-server" on my Raspberry PI 3 model b+ with Ubuntu Mate "Ubuntu 20.04.4 LTS" (not raspbian), configure and set-up vncserver as system service. I'...

user avatar asked by Hamham Score of 1

DHCP-Hooks not running on start up

I have a small usb-over-ethernet network of RPiZs connected to a single RPi4. I am accessing the zeros through an ethernet connection on the RPi4, so they need to send packets going to my laptop ...

networking dhcp  
user avatar asked by Rusty Score of 1

Serial port vs USB serial adapter timing issues

I'm working on some code that communicates via RS-485/MODBUS RTU with some devices. Depending on my development needs, sometimes I use a USB-RS485 adapter, other times I use an RS-485 HAT that's ...

usb serial  
user avatar asked by Rick Score of 1

dotnet returns error 132 with image dotnet/sdk:6.0.302-alpine3.16-arm32v7 on Raspberry 3B+

I want to build a .NET application inside a Docker container on a Raspberry Pi 3B+. dotnet build or publish, and even --version returns error code 132. docker build -t consoletest . Sending build ...

user avatar asked by Kai Walter Score of 1
user avatar answered by Kai Walter Score of 1

Greatest hits from previous weeks:

How can I connect my Pi directly to my PC and share the internet connection?

What I want to do is to connect through SSH and HTTP to my Raspberry Pi without having to connect it to the router. I use the Adafruit's Web IDE to create and run my programs, and I'd like to access ...

networking ethernet  
user avatar asked by Marc Score of 35
user avatar answered by geoji Score of 24

How to set my Raspberry Pi to boot into the GUI?

As from my previous question, I asked what the power off button in the corner does. Then somebody said if you boot into the GUI automatically, it will give you some options. How do I boot into the ...

boot gui  
user avatar asked by horIzoN Score of 44
user avatar answered by xxmbabanexx Score of 61

How can I mount a Raspberry Pi Linux distro image?

Normal filesystem images can be easily mounted: mount system.img /mnt Examined, and modified. But when I try this with a Raspberry Pi system image (e.g. raspbian), I get: mount: unknown filesystem ...

linux image mount  
user avatar asked by goldilocks Score of 50
user avatar answered by Johan Ehnberg Score of 30

Raspbian root default password

I tried to modify the sudoers file on Raspbian /etc/sudoers, and it looks like I made a mistake, as I'm unable to modify it again. I am also unable to call any command that requires sudo permissions. ...

raspbian pi-2 root password  
user avatar asked by Dani Score of 20

64-bit OS on Raspberry Pi 4

Looking for a 64-bit version of Linux for the Raspberry Pi 4. I'm aware that support under Ubuntu Mate is in the works, apparently Ubuntu Server works but it limited to using 1 GB of RAM. Are there ...

pi-4 64-bit  
user avatar asked by Rasjid Wilcox Score of 47
user avatar answered by jdonald Score of 23

How to login as root remotely?

I am trying to login to the raspberrypi as root user via winscp, but it only says "Access denied", same thing for trying to login directly as root on ssh. I have tried loging in as pi and doing sudo ...

ssh remote login root  
user avatar asked by d0min0r4bb1t Score of 33
user avatar answered by MadAntrax Score of 56

Solving “RTNETLINK answers: File exists” when running ifup

I had this problem when I got my new Wi-Fi dongle and have seen a few people with the same issue. Basically when I have one interface configured and want to swap to the other one, it throws up this ...

networking wifi  
user avatar asked by theo-brown Score of 71
user avatar answered by theo-brown Score of 40
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