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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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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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Keyboard layout Odoo PosBox

I'm using a Raspberry Pi 2 Model B Rev 1.1 with Raspbian GNU/Linux 9 (stretch). When I Try to change the keyboard layout in raspi-config I get following error: pi@raspberrypi:~ $ sudo raspi-config ...
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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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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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2answers
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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

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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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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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
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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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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 things. Following is the requirement Take user input from screen and generate QR code and print that QR code. How it will be i....
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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
42 views

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

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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75 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
37 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
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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
15 views

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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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....
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1answer
34 views

NOOBS Crashes “Creating Filesystem(FAT)”

I am using a Raspberry Pi Zero with NOOBS downloaded onto the SD Card. It succssfully boots, and asks me to pick an OS. I pick Raspbian and press install, and the install will go ahead for about 2 ...
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2answers
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Some programs does not work with a newly created user using useradd

So I used the old useradd command to create a new user on Raspbian Stretch. I copied the .config directory and other dotfiles from the 'pi' user, and started using the new account. However I can't get ...
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Raspbian Samba/Fstab file limitation

I'm connecting a HDD to the pi to share in my network. I setup SAMBA as directed, install ntfs-3g (my HDD is NTFS), then set specific UUID in /etc/fstab to the mountpoint located on my pi: UUID=...
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1answer
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How to install noobs after trying to install rasbian with pre-configured noobs

I just bought an Raspberry Pi Zero unit that came with Vilros utils. I get within the package a 16gb SD-Card that was pre installed with NOOBS. When I received the package, I looked inside the SD-...
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1answer
31 views

How to start Raspberry Pi User's Desktop on default display remotely? (ssh)

My Raspberry Pi currently boots to the desktop login screen, and I would like to keep it that way. However I would also like to be able to login to a user's (like pi) desktop using something like ssh ...
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1answer
21 views

Best way to stream footage

I'm looking for the simplest possible way to stream footage from my raspberry pi camera to my computer using a python program. I will also be using this on multiple networks so if there's an easy way ...
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33 views

I need help coding a toggle button for led? [duplicate]

I have hooked up my circuit and it works as a hold button to turn light on. Then when I let go of button light turns off but I have found no way to make a toggle button for led. If somebody were so ...
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1answer
27 views

Turn Raspberry pi stand alone network on and off

I have seen the tutorials for creating a stand alone network on raspberry pi like the one on The Raspberry Pi site and the nice tutorial in this previously asked question but what is not clear to me ...
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45 views

Calling a program from /etc/rc.local

I have a simple script that adjusts the monitor's brightness that is set to run on startup. #!/bin/bash gpio -g 18 1024 gpio -g mode pwm gpio pwmc 1000 gpio -g 18 800 I am calling this script from /...
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Cannot install install tensor flow on raspberry pi 3b

i am running into an error when i try to install tensor flow using pip on my raspberry pi 3b+. here is the error message: Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/...
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2answers
53 views

How to make a button toggle a led?

I have some code which turns an led on when I hold the button. But only when I am pressing it. Could somebody help me so when I press the button then the light stays on and if I press it again the led ...
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2answers
32 views

Weird resolution

So, im new to the raspberry pi. When i first started it and installed the raspian os with noobs, it had fine resolution. But then i rebooted, and for some reason the noobs menu was in alright ...
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1answer
45 views

Error in apt-get update

Whenever I run "sudo apt-get update" I get pi@raspberrypi:~ $ sudo apt-get update Hit:1 http://archive.raspberrypi.org/debian stretch InRelease Hit:2 http://raspbian.raspberrypi.org/raspbian stretch ...
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1answer
36 views

Using debian repositories for Raspberry Pi

Can we use Debian armhf .deb newer packages instead of Rapbian official repository packages?
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23 views

Video on local page lags but on YouTube it plays smooth

3B Plus model and latest Raspbian version. I’m developing an ExpressJs app where I could display photos and videos as a slideshow in a web browser. Everything works fine except when it comes to ...