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Questions tagged [raspbian]

Raspbian is a GNU/Linux operating system derived from Debian. Version numbering follows that of Debian and the current stable is 9 (Stretch). Raspbian is the most widely used Pi based distro and the one recommended by the Foundation, who distribute their own images of it.

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How do I make my raspberry pi invisible on a LAN?

How do I make my RaspberryPi running Raspbian invisible on my LAN? Or, if that's impossible, at least customize what information is given from it?
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19 views

Cannot connect to my Pi over SSH from IPv4 to IPv6

I am trying to set my Raspberry Pi as a server at home using IPv6. At home I have a dual stack. I need to know how can I connect from outside internet IPv4 or IPv6 (Client) to IPv6(Server at home) ...
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Run installation on multiple Pi's - Epoptes

I am busy playing around with Epoptes and it is a really cool tool to manage Pi's in a network. I highly recommend you guys to try it out. I do have a question and cant seem to find a work around ...
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21 views

Trigger an “alarm” when a circuit is open

I'm building a better mousetrap. I want to add two wires to a traditional mousetrap: one on the metal bar that snaps when the trap is triggered, and one on the trigger bar that holds the trap in "...
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1answer
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Reading out Button State while waiting

I have a small beginner question :D. I want to make the raspberry Pi sleep for 5 seconds and in this time i want him to check the status of a button and if the button is pressed he quits the waiting ...
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1answer
27 views

Cloning the Raspberry Pi SD Card as a balenaEtcher-ready instal-able image

I'm currently working on a Raspberry Pi 3 Model B+ with Raspbian Stretch, and I have installed several libraries such as TensorFlow and OpenCV. These installations took quite some time to do, and I ...
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SSLError while trying to install pip for python3.4 on Raspbian-Stretch (Armv7l)

The issue is that I have a tensorflow .whl targeted towards python3.4 but by default on raspbian-stretch python3.5 is installed so I installed python3.4 python3.4-dev using apt-get. After that i ...
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Can't boot into desktop GUI

I have a Model 3 B+, and I used Etcher to flash Raspian onto a 32GB SD card. I can SSH in to use the terminal, but I can't boot into the GUI. I went into the config and adjusted the Boot Options to ...
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Having some trouble identifying GPIO pins

Okay, some quick background first, I just managed to install Raspbian on a Raspberry Pi 3B+, and I started to try to do some projects. I started off with just writing python, which I'm happy to say ...
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1answer
38 views

Configure RPI to set static IP address via ethernet from Windows labtop using wifi sharing (ICS)

I have a Rasberry Pi connected to my Windows 7 LAN port, which gets internet via "Wifi sharing" (ICS) enabled in my laptop. The only problem is every time RPI boots up, a new IP is assigned ...
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1answer
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Raspbian Desktop Audio Not Working

I have checked many forums and Google, and I cannot find it anywhere. I have just installed Raspbian desktop on my laptop (acer aspire v5-123) and when I boot into the Raspbian Stretch the audio does ...
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raspberry pi display reverse color issue

my problem with the Raspberry Pi Official 7" Display: In this page I found this: My display fades out to weird patterns when I shutdown/reboot my Pi. Don't panic! This is perfectly normal. ...
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raspberry pi creates too much noise when i record audio [on hold]

I did install google assistant and it was working perfect but suddenly it does not responding so i checked my mic and i am using my USB mic and as a output i used both hdmi as well as 3.5mm jack but ...
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1answer
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Cannot connect to wlan0 after setting the IP to static

Without setting the IP to static I can easily connect to Pi. The untouched ip is 192.168.1.135 and works great. How ever upon editing the /etc/dhcpcd.conf and adding interface wlan0 static ...
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1answer
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How to see the video footage from my pi cam in pi itself

I need to see my pi cam's live video , in my pi itself.
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1answer
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Raspbian compile single kernel module gfs2

I'm trying my best to get GFS2 mounted in dual-primary on Raspbian, but I'm hitting an issue. Whenever I try to mount the GFS2 volume, I get an error: mount -t gfs2 -o noatime,nodiratime,noquota /dev/...
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Can someone explain using SSID + inform vs interface wlan#?

I'm here to learn, so advice is appreciated. Since moving over the Stretch, by selecting wifi from the menubar it seemed to populate the tail of my /etc/dhcpdc.conf with: SSID <my AP> inform ...
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Raspberry Pi 3B+ Bluetooth undiscoverable on iPhone

I installed latest version of Raspbian Stretch with desktop (which comes with pre installed bluetooth). I turned the bluetooth on, and made it discoverable. At the same time I searched for available ...
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Original Raspberry Pi B, video playback choppy on Pi_Video_Looper software from Adafruit

Installed NOOBS on an 8GB SD card and installed Raspbian. Then, installed Adafruit's Pi Video Looper. Inserting a USB stick with a video, the 1280x720p video played back choppy, not fluid. I severely ...
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raspberrypi-bootloader error during apt-get upgrade after restore form backup, how to fix?

I recently restored a pi 3 from a backup. Before the incident that required the restore I had it booting from a USB SSD hard drive. To restore the operating system I simply copied the root directory ...
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2answers
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Why is my RTC DS3231 but seems DS1307?

I bought a RTC DS3231 because of the accuraty of time (2ppm, I was searching an accurate RTC). When I received it, I checked that in the encapsulating it is as well marked like DS3231. But, after ...
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3answers
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How can i Get 5 Volt output with GPIO

I am using Raspberry Pi 3 B+ and I want to run a 5 volt DC motor with RPi.GPIO, I have written a code: import RPi.GPIO as GPIO from pip._vendor.distlib.compat import raw_input u = raw_input('how ...
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Changing desktop background via bash [duplicate]

I'm trying to adjust the background on my Raspberry Pi via a bash script but I can't seem to find a way to do it without using a GUI. Does anyone know a way of doing this? Thanks, Richard
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Get different values from potentiometer even not touching

I have a potentiometer that is used to adjust volume level along with MCP3008 but even if I don't touch it, its values are going and coming as following. Press Ctrl-C to quit... Channel 0 minus 1: ...
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Python PiCamera V2 won't take bmp images, why the errors?

from picamera import PiCamera import time camera = PiCamera() camera.resolution = (3280,2464) time.sleep(2) camera.capture("test1.bmp") # This code doesn't work #camera.capture("test1.jpg") # This ...
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Simple network manager application for 5inch display

I want to install on my Raspbian Lite (I already installed basic xinit packages and I'm able to run a graphical jar app without problem) a simple network configuration with GUI. My goal is to connect ...
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1answer
35 views

Raspberry Pi 3 bluetooth stops working after a while

I use it to connect to a speaker (as a pulseaudio sink) dmesg | grep Blue shows the following: [ 14.034501] Bluetooth: Core ver 2.22 [ 14.034587] Bluetooth: HCI device and connection manager ...
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to share cctv dvr video on raspberry pi monitor from android mobile phone

my DVR is already connected to android mobile phone using internet. How can i watch the remote DVR video on raspberry pi with Ubuntu operating system, without window os using d link wi fi internet?
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21 views

Raspberry pi 3B+ RCA noisy video output

I am working on a project in which I would like to connect my RPI to an old CRT TV, For this, I am using a 3.5mm to RCA composite cable. But when I connect my raspberry pi and TV the output on so ...
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1answer
57 views

How to increase usb webcam fps?

To record video from my USB webcam I use ffmpeg with v4l2 driver (command below). ffmpeg -f v4l2 -r 30 -s 640x480 -an -sn -i /dev/video0 -f avi temp Unfortunately fps is too low for 640x480 (around ...
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2answers
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I'm trying to run a python script at boot but keep getting “socket.error: [Errno 111] Connection refused” error

I've bought my first Raspberry Pi 3B+ last week and started working on my project but I seem to be stuck at this point. I've looked through a hundred different posts but none of the solutions seem to ...
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Raspberry PI 3 Time sync interval configuration

I have made time-sensitive application for Raspberry Pi. However, I found that my RPi showed 5~6 sec error per day. Therefore I need to do time sync more frequently. I had been searched many QnAs ...
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28 views

From screen user input generate QR code and print it

I am very new in this field. I try to make like thermal printer kind of device which take user input from machine and print it via that machine. Following is the requirement Take user input from ...
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Thermal imaging

I was wondering if anyone knows of a thermal imaging app for either iOS or android, just purchased an p3 b+ and just trying to get a few things clarified befor I start her up, also any info on a ...
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3answers
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can't install opencv on my pi

I'm an absolute Raspberry Pi newbie. My intention is to get some camera vision project working for which I need OpenCV3.3's dnn Python module. I've found here a description of how OpenCV can be ...
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2answers
40 views

Python button script stopped working

I have this script which runs a motor until a button is released. It was working fine up until making some changes to the setup earlier but now the motor doesn't stop when the button is released - ...
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SD Card Copier - Space lost on backup

I'm making backups of my SD card as a preventative measure using the desktop tool "SD Card Copier". Whenever I make a backup using this tool, I end up with 2GB less free space ("Available") reported ...
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Problem with interfacing ds18b20 and mcp3208 simultaneously

In my project i am trying to interface both DS18b20 and MCP3208. When i interface both any one interface only working but not both(spi and 1-wire) not working simultaneously. For ds18b20 i am using ...
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2answers
41 views

Raspbian passive data consumption

I'm using raspberry Pis with raspbian lite for a project that requires them to be out in the streets with a 4G dongle to get internet access. As you can imagine, I want to keep the device's data ...
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2answers
72 views

Will adding RTC to a Pi make it more stable? [closed]

I use my Pi 3 as a desktop machine and it generally does pretty good. Occasionally I run into the issue that if I use an application, mainly Firefox and sometimes Chromium, the application will either ...
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1answer
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tmux question - why can user “pi” attach to a tmux session, but not the other user?

My second user "robert" cannot attach to a tmux session, even when I used sudo. I type: sudo tmux attach -t ruby and I get the output of no current session. If I type tmux ls, I get no server running ...
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83 views

Backup RPI to a Linux Machine via ssh

How to backup my RPI and keep it up to date without needing to create an image with dd. I want to do it from a linux machine via ssh. With the backup I want to be able 1) to restore the system on ...
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1answer
45 views

raspberry pi no rainbow screen

I have an another problem. My RPi (3 model B+) not booting. No ACT led, no rainbow screen, only PWR led. Here is what i checked: - Power supply (Raspberry Pi Universal Power Supply 2.5A, 5.1V Micro ...
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1answer
25 views

Rapidly-fluctuating output when using rotary encoders with Raspberry Pi + Processing

I'm using a Raspberry Pi 3 with some Cylewet KY-040 rotary encoders that I bought from Amazon to set up an art installation with Processing 3. Pi is just running the stock Raspbian NOOBS. Right now, ...
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1answer
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Can I make a WiFi extender/access point from my raspberry pi 3b+ using WiFi only

How can I make a WiFi extender/access point using wifi only, I do not have Ethernet but do have a WiFi dongle to use. Note: I do not have Ethernet for my pi. If there is a solution please tell me how ...
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Suddenly unable to login to Pi after Kodi install

I'm a total noob when it comes to the Pi, so please bear with me, and apologies if I'm slow... I have Raspbian Stretch installed on my Pi 3 b+ and I've installed OMV as well. I'm using it in headless ...
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3answers
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Restore backup failed (using rsync)

I backuped my RPI following goldilock's answer (Can a Raspberry Pi be used to create a backup of itself?). Running this: rsync -axHv --delete --exclude-from=rsync-exclude.txt --rsh="ssh" root@...
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1answer
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slideshow (png+mp4) and faster boot

I have rpi zero w as my photo frame project. It is an raspberry pi zero w + spi display 320x480 (via framebuffer) and raspbian lite (no X11) I am using FBI to display images in slideshow manner, and ...
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1answer
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Is there a Raspbian package that installs `setfacl`?

I'd like to install setfacl to enable unprivileged become on my Ansible playbooks. To that end, I'm attempting to find the binary it says it needs. However, I can't seem to get it to install: pi@...
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1answer
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How can I recover from a system boot autoload service that keeps rebooting?

I don't want to start over from scratch. There are several ways I could change the monitor.service so it would fail or run without booting: pi@raspberrypi:~ $ sudo systemctl --full edit monitor....