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2
votes
1answer
44 views

SSH works on eth but not wifi and other services do work always [closed]

So this is driving me crazy. Basically my problem is that I can ssh to the pi if the ethernet cable is connected but not if disconnected. It sounds like a typical network problem so far, but it is ...
1
vote
0answers
20 views

How can I view networking interface logs over UART?

I have created a (needlessly complicated) networking setup that I tried to create by following this guide. I have colosally screwed up and now my RPi will disconnect randomly and requires a reboot to ...
4
votes
1answer
24 views

Can't connect to Pi Zero over USB

I followed the guides here and here, both times freshly flashing Raspbian Buster Lite to the SD and modifying the config files. I leave the Pi around 3 minutes to boot, with it connected to my PC's ...
0
votes
0answers
21 views

Disabling auto-login after it was once enabled during build

I am running Ubuntu 16.04.6 LTS ( Mate, built with ubuntu-mate-16.04.2-desktop-armhf-raspberry-pi.img ) When I initially built this, I enabled the auto-login when going through all the initial ...
0
votes
1answer
26 views

Different Boot behavior for cloned Pi

I am running a python script on my Pi 3 B+ and registered it in a crontab @reboot so it is executed when booting the system. On my development Pi everything works fine, but when I clone the SD-Card ...
2
votes
1answer
56 views

kernel types in Raspbian 10 - Buster

In the /boot directory I've found the following kernel files: kernel.img: Kernel For ARMv6 - rpi 1 and rpi zero kernel7.img: Kernel For ARMv7 - rpi 2 & 3 kernel7l.img: Used In rpi 4 but I don't ...
0
votes
2answers
70 views

Recent Version of Raspbian Causes Windows 10 to Add Directory to SD Card; Why and How to Stop?

I am trying to flash the latest Raspbian image to a microSD card in a USB adapter using the balenaEtcher software on a Windows 10 Pro system on a Lenovo Thinkpad. Raspbian has two partitions, a FAT32 ...
1
vote
0answers
15 views

Sounds in a Python Program [closed]

I have a simple program to find a number in a number guessing game. I would like to insert some sound like "your number is too high" into the program. I can record the phase but what do I insert into ...
0
votes
0answers
15 views

Connect mobile phone/app to Pi Zero W via Bluetooth

Is there any easy way to connect my android (later ios too) device to my pi zero w via Bluetooth? I'm looking for a way to send data to my mobile phone without using Wifi. edit: I want to write an ...
0
votes
0answers
40 views

Connect Bluetooth Mouse automatically

My Raspberry Pi works well and I can connect my bluetooth mouse without any problems BUT when the Pi is restarted the mouse has to be reconneted. The mouse is there under bluetooth but needs to ...
0
votes
0answers
22 views

Pretend HTTP Request from localhost

I have set up my RPi 3 as Access Point to use a web-App, which is hostet by a flask server on the Pi. My HTTP-requests are generated by Swagger Codegen. The defined host is set to http://localhost:...
1
vote
1answer
48 views

How to tap / tee / fork the Rpi GPIO pins covered / blocked by a HAT / pHAT / bonnet?

I have a blinkt pHat that covers the entire GPIO pin array and I'm trying to trigger changes to the LED array after an external prompt. I expected to use a momentary switch connected to the GPIO pins, ...
0
votes
0answers
15 views

CompoundPI unidentified server problem

I am trying to use CompoundPI (https://compoundpi.readthedocs.io/en/release-0.4/quickstart.html) with two RPIs and an ubuntu client. CompoundPI connects multiple RPIs, that each of them has a picamera,...
1
vote
1answer
18 views

Is it possible to change video resolution while recording?

Is there possible to change video resolution from 640x480 to 1640x 1232 while is recording and vice versa?
1
vote
0answers
20 views

Software/Framework Recommendations [closed]

I'm prototyping a device using a raspberry pi 3b+. Here are some of the requirements I'm hoping to fulfill. *When I say "device" I'm referring to the raspberry pi. Device Requirements Stream ...
2
votes
2answers
41 views

Determining correct image size for Raspbian backup to fit only real data on rootfs

I regularly backup my Raspi using a script that rsyncs rootfs and /boot onto a image created with losetup. This is the current branch I am working on: https://github.com/ephestione/RaspiBackup/blob/...
2
votes
2answers
44 views

Share input between 2 RPis

I have Two or more RPIs where one is places in a different building with a few buttons. The other has to get the value from the first and play a sound if one of the buttons is pushed on the first. ...
1
vote
1answer
81 views

Need help for iptables/filter

Setup: RPi connected to router using ethernet on subnet 192.168.0.0/24 which is also an access point access on subnet 192.168.43.0/24 So basically devices will connect to my Rpi for VPN traffic I ...
1
vote
2answers
69 views

Automount USB Memory Stick in Buster (not Lite)

When I insert a USB memory stick a window opens, as expected, inviting me to "Open in File Manager". However, when I press OK, I get a message: The specified directory '/media/pi/E1D1-A752' is not ...
0
votes
0answers
44 views

Rapberry Pi 3 | Chromium Aw Snap

I'm running into a recurring issue and I can't seem to find a resolution for it that works. Pi info: Linux version 4.19.79-v7+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-...
-1
votes
0answers
41 views

Facing “Error: 'opengles2' was enabled but pre-condition failed.” while working with BeagleBone Board

I am trying to cross compile Qt5 for BeagleBone board, where the default platform plugin in my device is "eglfs". while configuring, I am getting the following error - ERROR: Feature 'opengles2' ...
0
votes
0answers
17 views

My Rpi can't connect again using Putty and VNC

I'm totally noobie in this area. I'm learning to use my RPi 3 model B. So at first I used it with my PC using tutorials in the web through Putty (SSH) and VNC viewer and everything worked fine. Then I ...
1
vote
0answers
42 views

Emulating Raspberry Pi with GUI on QEMU / Virtual box in Ubuntu with RAM > 256Mb

I am searching for documentation on emulating Raspberry Pi with GUI on QEMU in Ubuntu with RAM size about 1Gb. Most articles I found from google are either emulating 256Mb rpi with jessie or in the ...
1
vote
0answers
41 views

Boot: Started Update UTMP about System Boot/Shutdown

I have been using Raspi as a local Django server for a few months now. One day, when I came back from work the local server was not working anymore so I decided to unplug and plug back the power. ...
1
vote
0answers
14 views

Reconfigure xserver?

I was installing different DEs like KDE Plasma and Cinnamon on Rasbian buster. I uninstalled KDE and I’m using Cinnamon as my permanent DE, but somehow KDE reconfigured xserver so that even now with ...
1
vote
1answer
45 views

Measuring the power consumed by raspberry pi 3

I have powered up my RPi and I want to know which signal could be used to measure the current consumed by the RPi. I have DAQ card and I would like to know which part (or signal) I can use to measure ...
0
votes
1answer
45 views

How can I power a IR LED ring using GPIO port?

Okay so, I'm currently working on a final year project about vein visualization with Raspberry Pi 3 Model B+ and a NoIR camera V2. An infrared light source is required to capture clear vein image. I'...
1
vote
0answers
14 views

Audio Injector stereo soundcard is preventing boot

I recently bought a Audioinjector stereo soundcard HAT to stream sound on my raspberry pi running Raspbian. I went to their website and installed the .deb installer file and ran it with audioInjector-...
1
vote
1answer
81 views

Access point as WiFi router with additional WiFi-dongle

I am trying to set up a Raspberry Pi 4 as a wlan0 <-> wlan1 router and followed Ingo's excellent guide here: Access point as WiFi router/repeater with additional WiFi-dongle Having gone through ...
0
votes
2answers
106 views

Pi-Hole: How to change DNS via command

I use Pi-Hole on my Raspberry Pi 2. It's very easy to change the Pi-Hole DNS using the Web Interface Settings. But how can I change my Pi-Hole DNS via command in my raspberry pi console? (Raspbian) ...
0
votes
0answers
20 views

bind event from evdev to GUI wxpython

I have buttons and joystick as in the image below and I am reading events from these inputs on raspbian with the evdev library, I am also running a GUI using wxpython. My question is how can I bind ...
2
votes
2answers
225 views

What servo motors can safely be driven directly from a Raspberry Pi's GPIO header?

A Raspberry Pi's GPIO header includes power pins, and enough I/O pins to drive multiple servo motors. When using this header's 5V supply to power servo motors directly (rather than using external ...
2
votes
1answer
84 views

Rpi3B+ and Audio Amplifier HAT GPIO Pin Push Button False Detection/Triggering Problem

I'm currently having trouble with my project. I'm using a Raspberry Pi 3B+ with an InnoMaker Hifi Amp Hat and some push buttons. import time import signal import os import RPi.GPIO as GPIO GPIO....
2
votes
1answer
57 views

USB-C to USB-C Cable Recommendations for Pi 4

Based on the USB-C implementation issue in Pi 4 rev. 1, I'm looking for recommendations on a non e-marked USB-C cable to use for power. Having dug through my own cable stash, I've found a couple of ...
1
vote
2answers
47 views

Controlling 28 invidivual leds with a raspberry Pi Zero

I want to do a what I hope is a simple project. Making a led light clock built into a plank. Basically I'm planning on cutting 28 slots in a piece of wood, and placing a small LED light in each slot, ...
-1
votes
1answer
275 views

For the pi-4 which should i use Ubuntu Mate or LinuxMint for desktop use

So as the question suggested I want to try different versions of Linux on my pi-4 but not sure if I should use Ubuntu MATE or Linux Mint on the pi-4. In addition I having a hard time finding images of ...
0
votes
0answers
29 views

Getting error on Raspberry pi 3 while trying to run chromium in app mode

$chromium-browser --window-size=1080,960 --window-position=0,0 --app=/home/pi/Desktop/python/LMMS.html --disable-quic --enable-tcp-fast-open --ppapi-flash-path=/usr/lib/chromium-browser/...
0
votes
0answers
22 views

Raspberry Pi couldn't find wireless interfaces!

After a while I have started my raspberry pi, the wifi disconnects and when I am clicking on my Wifi icon it is saying No wireless interfaces found How am I supposed to solve this?
1
vote
1answer
69 views

2 WLAN, 2 SSID, Dongle + integrated wifi on Raspberry PI 3B+

I need to share my eth0 with two WLAN CARD: 1 -> DONGLE WIFI TP-LINK (WLAN 0) 2 -> INTEGRATED WIFI OF RASPBERRY (WLAN 1). I tried with RASPAP, create_AP but only one works :s, how can i make work ...
2
votes
2answers
65 views

Periodic backup of Rpi3 Stretch SD card

Starting with a pristine install of Raspbian Stretch on a 16GB SD card, I plan to set up various sets of software packages. I would like to start with a baseline install and create a restore-point (...
2
votes
0answers
20 views

g++ and gdb debugging does not provide full backtrace

I never experienced this behaviour on classic desktop platform thus I'm asking here. The question is how to correctly debug C++ application (g++ build) using GDB on Raspberry Pi? When my application ...
0
votes
0answers
16 views

Need advice for live camera feed

I'm helping with the AV for a veterans day event in a few weeks. Because of the cramped space, the people on stage will be facing the front of a gymnasium and the audience will be on bleachers on both ...
0
votes
1answer
35 views

Accessing xrdp via Windows 10 RDP Reboots Pi

I'm suddenly running into a problem accessing a Raspberry Pi 3B+ on my LAN from my Windows 10 desktop using Remote Desktop. Up until about a week ago everything had been running fine for well over a ...
0
votes
0answers
25 views

How can I run a PxE server off my Pi to PxE boot Windows Images?

I've come across many different options to run a pxe server on my pi but I run into trouble with each of them. The most promising was PyPxe but this was my last experience with trying that option. ...
0
votes
0answers
18 views

Ubuntu 18.04 LTS - Cross-compiling Raspberry Pi Kernel - modules_install doesn't create files

I am trying to build a Raspberry Pi kernel by cross-compiling on an Ubuntu 18.04 LTS instance. The compilation of zImage, modules, and dtbs all complete as expected. However, when I run the make ...
1
vote
1answer
37 views

How can I make dhcpcd ignore an interface?

There are two NICs eth0 and eth1 (on Raspbian buster). For eth0 DHCP is used which works fine. eth1 is supposed to be up but otherwise go untouched (NO static address since I‘m trying to setup my own ...
0
votes
0answers
14 views

Raspberry Pi Services Stop Working when Idle for Too Long

I am running a Raspberry Pi model 4, 4GB, with Buster Lite with Nextcloud and Mumble installed on it. I noticed that once I unplug my pi from my display, that the services stop working and I cannot ...
-1
votes
0answers
29 views

How can Rpi3 remotely turn on and off home lighting (perhaps using a wireless power switch)?

So I happen to know some python to turn lights on and off in rpi3. Also to automate my home I know how to use relay boards. But the problem is that I have one rpi3 and the light which I want to ...
-2
votes
1answer
85 views

Rpi3 Jessie Leafpad editor not found problem

On my Raspberry PI, I want to use simple text editor. So, I learned that it already has Leafpad text editor installed on it, but there is no trace of it being on PI. Like for instance, I run find ...
1
vote
1answer
37 views

Sites unavailable ('Network unreachable') but pings work fine [closed]

I have a Raspberry Pi 2 Model B running Raspbian Buster (upgraded from Stretch). I don't use it very often, but recently I noticed that I can't do apt update because all the repos are unreachable (...

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