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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mbus to modbus protocol

Im trying to convert mbus protocol to modbus IP protocol with a raspberry. Im new on this, just doing bcs my boss asked. I´ve been searching on all google, but I found nothing. Any help would be ...
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2answers
52 views

Adding I2C Bus with dtoverlay Does Not Show Up in i2cdetect

I am trying to set up multiple I2C interfaces on my pi. I have added the following lines to my /boot/config.txt and rebooted: dtoverlay=i2c-gpio,bus=4,i2c_gpio_delay_us=1,i2c_gpio_sda=29,...
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How to access BCM i2c registers? i2c speed halves on raspbian buster (Zero W, Pi 3 B, Pi 4 B), fine on raspbian stretch

I have a problem with I2C clock in Raspbian Buster (using either SMbus or i2c-dev). It defaults to 50 kHz on RPi 4B and to 62.5 kHz on RPi 3B and Zero W. However, if I set the speed i2c_arm_baudrate=...
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How to run a raspberry pi program without connected to a desktop screen

I want to be able to run a raspberry pi program without being connected to a desktop screen so the whole idea is to make an object tracking robot using raspberry pi and a camera. This should be able ...
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120 views

Raspberry pi 4 does not show on HDMI

I recently bought a new raspberry pi model B with 4GB rams and I copy & paste Noobs in the micro SD card from macbook. I plugged my HDMI cable from my raspberry pi to samsung TV but it always ...
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60 views

new raspbian image doesn't detect usb cdc device

I have a usb cdc device that works fine in raspbian stretch. But when I change the image to new raspbian buster, my usb device isn't recognized. lsusb doesn't list my device at all! I've enabled cdc-...
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Raspberry Pi 4: Console on first HDMI screen, X11 on second HDMI screen

The new Pi 4 has two HDMI Ports. After booting Raspbian, the first screen (HDMI-0) should display the console and the second screen (HDMI-1) should display the X11 desktop. My first thought was ...
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31 views

RPI sometimes freezes on reboot , what to do?

I have an RPI 0 W which I use a script on to run 24/7 , Sometimes the script fails and a system reboot is required which I do by the command sudo reboot, Sometimes while rebooting the RPI is getting ...
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94 views

Cannot set static IP address for Wi-Fi

I am trying to make static IP address on RPI 3B+ for both ethernet and Wi-Fi. I was following this answer(How do I set up networking/WiFi/static IP address?), but still could not do it. So far I ...
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30 views

Voltage troubles with Pins (Relais stays on) [duplicate]

I am having troubles setting a simple Relais to On and Off. My code is quite simple: GPIO.setup(RELAIS_PIN, GPIO.OUT) GPIO.output(RELAIS_PIN, GPIO.HIGH) time.sleep(2) GPIO.output(RELAIS_PIN, GPIO.LOW)...
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Rpi GPIO Python Pad4Pi Module for Interrupt Based Matrix Keypad - Where is the Interrupt command?

I'm using membrane keypad with raspberry pi, and with the help from pad4pi library. I can't seem to find the interrupt command in pad4pi library. What's the interrupt command for any of the keys, ...
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46 views

Rasbian lite does not assign dhcp IP address

I have an issue with Rasbian lite. I downloaded the OS and installed it in a Raspberry PI Model 3B. logged in and typed the following: sudo raspi-config added wifi access point name and password ...
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1answer
39 views

Desktop no longer displays after modifying LXDE-pi autostart

I upgraded to Raspbian Buster this morning and everything worked fine, until I added a command to run a python tkinter application in the LXDE-pi autostart file. When I rebooted to test the tkinter ...
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62 views

How to shrink the image of my working Raspbian SD Card

I want to shrink the image to minimise storage and to efficiently distribute this image to others who may have smaller SD Cards.
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1answer
23 views

Is there a TUI that functions more like a GUI?

I'm looking for something like a dialog/ncurses menu but as a full interface. There are plenty of of programs I have found that do a task like say: find a file and delete it, connect to an AP, monitor ...
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1answer
19 views

Stacking together two I²C hats with different voltage

I plan to make a domotic system based on a raspberry pi. I choose a grove hat to connect sensors and relays, but I need a digital potentiometer and grove system does not have that. So I plan to buy ...
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2answers
62 views

How to enable 802.1X security for Ethernet on Raspbian 10?

On a different host running Ubuntu 18.04 I'm using the Network Manager GUI to configure the 802.1X Security for my Ethernet interface (eth0), leading to /etc/NetworkManager/system-connections having ...
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27 views

LCD screen not working with Raspberry Pi 3B+

I've got Raspberry Pi 3B+ and this screen and I tried to plug it up, but it's not working. OS configurations I tried: just Raspbian Waveshare drivers on same Raspbian some random drivers on same ...
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20 views

NPM dependencies aren't installing correctly

I'm trying to use PM2 or Forever on a Raspberry Pi 3B, but when I try running the command pm2, I get this error: Error: Cannot find module 'read' Require stack: - /home/pi/.nvm/versions/node/v12.10.0/...
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1answer
40 views

WiFi Connectivity Issue

I have a Raspberry Pi 3 (Model B). I want to use it as a terminal to operate a CNC machine as it has a Web Interface (Duet WiFi). I just need something with a browser and internet connection. I first ...
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How to connect a laser sensor to the raspberry pi 3 and what parts are needed? [duplicate]

How to connect a laser sensor to the raspberry pi 3 and what parts are needed?
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2answers
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FTP server UTF-8 characters are not shown ( neither remote, nor direct )

I'm trying to set up an ftp server on my Raspi. But UTF-8 filenames are not shown correctly. UTF-8 characters ( Japanese ) are shown as question marks only. The ftp server uses an external usb-memory ...
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50 views

Need Help, can't apt update

I need help, can anyone solve this problem? My Raspberry Pi can't update and is showing this: How can I fix this?
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1answer
124 views

What are the limitations/advantages of the “fake KMS” driver with OpenGL?

RPi 3 has both "full KMS" and "fake KMS" display drivers which support hardware-accelerated GL driver. RPi 4 currently has only "fake KMS". I wonder what difference does it make w.r.t OpenGL support. ...
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2answers
87 views

Is it safe to stay on Raspbian 9?

It appears Raspbian 9 can't automatically update to Raspbian 10. Is the OS still getting security updates? What advantages and disadvantages are there in staying on Raspbian 9? When will it ...
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1answer
37 views

What is the difference between the Yocto and Raspbian?

Recently I come to about the IIoT solution of siemens which have Yocto Linux https://www.14core.com/siemens-simatic-iot2000-iot2020-iot2040-arduino-ide-integration/. As I am already working on ...
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1answer
22 views

Python exception when installing docker-compose

I have tried installing docker-compose on my jessie dist sudo pip3 install docker-compose However it encounters an exception Downloading/unpacking docker-compose Downloading docker_compose-1.24.1-...
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18 views

Libreoffice using 25% total cpu, 100% one core

When Libreoffice is left open with a document in it, after a while Libreoffice begins using 25% of the total cpu usage. The usage doesn't stop, until: 1. I close Libreoffice 2. I press Ctrl+S even ...
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1answer
79 views

Weird issue when trying to update Pi3 (on Stretch)

Logs below, do I have to update to Buster? pi@raspberrypi:~ $ sudo apt-get update [sudo] password for pi: Hit:1 http://raspbian.raspberrypi.org/raspbian stretch InRelease Hit:2 http://archive....
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7 views

How to specify cryptopp library paths in geany IDE for c++ in raspbian OS [migrated]

I've written a code in visual studio 2019 in c++ language and it involves various cryptographic mechanisms. It also includes Elliptic curve library named cryptopp. I want to simulate and test the ...
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2answers
36 views

Determining how specific services were started?

I have a Raspberry Pi which is running well, and am looking at creating a status app for it. I have some services that are run on startup, and I want my app to check that they are running, and if not ...
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49 views

How to make wireless or bluetooth microphone work on raspberry 4

I'm running raspbian-buster on raspberry 4. I need to make wireless or Bluetooth microphone work. It's a production base project. I've tried with common headset which used for cellphones.But it's ...
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1answer
126 views

Failed to fetch https://dev2day.de/pms/dists/jessie/main/binary-armhf/Packages HttpError404

I'm trying to do a simple sudo apt-get update on my Raspberry Pi 2, but I keep getting 404 error: W: Failed to fetch https://dev2day.de/pms/dists/jessie/main/binary-armhf/Packages HttpError404 ...
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0answers
21 views

cTrader crash my browser (Chromium and Firefox) [duplicate]

I tried to run cTrader on Chromium on my RPI but during this night my browser crashed and I don't know why, same problem on my VPS in Debian 10. An other guy have the same problem here: Website ...
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3answers
34 views

Is it possible to use my raspberry pi as a network hub?

I want to create a network hub with the help of raspberry pi for connecting 2 standalone devices with the hub and then provide internet to the hub so that both the devices can access the internet ...
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1answer
54 views

wi-fi on Pi 4 will not connect to iPhone hotspot

My rpi4 will not connect to my iPhone 8 hotspot. I does connect to the hotspot from my iPad mini. Additionally, the rpi4 doesn't connect automaticslly on startup after successfully connecting during a ...
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2answers
65 views

How do I get rid of missing sources? [closed]

How do I get rid of erring sources: Err:9 https://dev2day.de/pms jessie/main armhf Packages 404 Not Found Ign:10 https://dev2day.de/pms jessie/main Translation-en Ign:11 https://dev2day.de/pms ...
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1answer
60 views

Cannot set keyboard using raspi-config

When I plug a USB keyboard into my Raspbian (buster) pi 3B+, and I try to use the pipe key | I get a tilda ~ instead. This is consistent across a bunch of keyboards that work well in other computers. ...
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0answers
26 views

How to set proxy for rp-prefapps in Buster?

I have set the proxy according to this documentation: https://www.raspberrypi.org/documentation/configuration/use-a-proxy.md This works fine. On the command line, I can use apt-get. I updated my ...
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14 views

How can I download FFMpeg git? I keep getting permission denied error

I tried many ways to download FFMpeg but to no avail. http://jollejolles.com/installing-ffmpeg-with-h264-support-on-raspberry-pi/ I used this website as reference and I managed to do everything up to ...
2
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0answers
53 views

Hardware controlled RTS on a Pi4 not working accurately

We need to use RS485 to talk to one of our custom tools. We need to use hardware controlled rts/cts. I've read so many articles about this but nobody ever says it works for them with fast timing and ...
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3answers
60 views

wget script randomly stops working

I am using a Raspberry Pi4 with Linux raspberrypi 4.19.58-v7l+ #1245 SMP Fri Jul 12 17:31:45 BST 2019 armv7l GNU/Linux. I have a service that starts a C++ program. This program starts a script, reads ...
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2answers
58 views

How to clean up /boot partition?

I haven't run apt upgrade on my Pi 3 in a while and did it today. It resulted in an error message with my /boot partition being filled to 100%. Any subsequent apt commands are resulting in errors ...
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3answers
371 views

How to install Raspbian Stretch on Raspberry Pi 4?

I need to install Rasbian Stretch on Pi 4.
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1answer
55 views

New RPi OS kernel panics with VFS: Unable to mount root fs on unknown-block(179,2) not using NOOBS

Hi I have 6 Raspberry Pis and none of them have encountered this error when using this EXACT setup. I boot up. Get a bunch of messages telling me that my CPU swapper is not tainted (not official ...
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0answers
40 views

raspbian cmake erorr when install open cv in rapsberry pi

I want install open cv and when step using cmake I get stucked. here the error CMake Error at CMakeLists.txt:9 (find_package): By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this ...
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0answers
33 views

connecting raspberry pi to android tablet over bluetooth

I am familiar with this and this. I am trying to send a message from raspberry pi terminal to an android app. I am on Raspbian Stretch headless (NO gui) Now, I am doing : sudo bluetoothctl power ...
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0answers
19 views

Raspberry with HiFi Berry and only one speaker

I have a Raspberry Pi with a Hifi Berry Mini Amp. But I only connected one speaker to the hifi board. (I build a small radio with it) Now I'd like to make sure that my speakers play everything. So, f....
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0answers
51 views

Unable to access RPi SSH from iMac, help?

I'm bit of a newb to Pi and I've setup a RPi 3 Model B with Raspbian. I followed this guide (see below) to setup SSH correctly, however, when I try to access the Pi with the correct credentials (using ...
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2answers
83 views

How to extract mutipart rar files?

Hi i tried extracting a multi part rar files using unrar-free but it does not work and i get an error saying "failed" I followed this guide below : Uninstall unrar-free. $ sudo apt-get remove unrar-...