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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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updating rasbian fix missing error

I have spent days on this but I have not solved this please help. 93% [1 scratch2 46.3 MB/67.8 MB 68%] 37.3 kB/s 9min 37s Err:1 http://archive.raspberrypi.org/debian stretch/ui armhf ...
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Invalid MIT-MAGIC-COOKIE-1 keyQXcbConnection: Could not connect to display localhost:10.0

I have RPi 3 B+ and 5" HDMI touch screen. I wrote this little GUI application in Python: import sys import os from PyQt5 import QtWidgets class Test(QtWidgets.QDialog): def __init__(self): ...
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43 views

Python Bluetooth connection automatically

Is there any way to connect Bluetooth device automatically without manually entering the passkey and automatically trusting the device?
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55 views

Is it possible to compile and Arduino Sketch into a C++ file to run on Raspberry Pi?

Since Arduino uses C++ for its programming with libraries that are specific to Arduino, is it possible to compile your sketch and have it run as a C++ program on a Raspberry Pi? I saw there was ...
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30 views

SPI voltage level

I had troubles reading an IC (ADAS1000-4) with my raspberry. As soon as I connect the chip to the SPI bus of the Raspberry, the Low voltage doesn't get as low as I expect (please have a look on the ...
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119 views

Installation of opencv-contrib-python through pip3 fails

I typed the code pi@raspberrypi:~ $ pip3 install opencv-contrib-python it responded with "Collecting opencv-contrib-python" Could not find a version that satisfies the requirement opencv-contrib-...
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1answer
126 views

Replacing hostapd with wpa_supplicant

I want to get rid of hostapd, because it is very unstable, and use wpa_supplicant instead. What I did So I followed these instructions. I have a RasPi 1 with two external wifi dongles. I used a ...
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17 views

Install and use windows driver for .NET application in Raspbian

I have a thermal camera which allows to develop software in C# using .NET (the old one, not the new .NET core). This is the SDK: https://flir.custhelp.com/app/answers/detail/a_id/1043/related/1 This ...
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chromium version 65. display will not work with tinkercad.com on pi 3B+

Placing red cube on the workplane it turns to black and then the video start acting up. I work in a makerspace and tinkercad is an easy starting place for people.
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40 views

Pi Camera choppy video/skipped frames

I'm using the Pi camera to record 30 seconds of footage, triggered by an IR break beam sensor. This is running on a Pi 3 B+. I've soldered in all the wiring using an Adafruit Perma-Proto Pi Hat. My ...
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110 views

module RFID-RC522 MySQL, Python

I have the following problem. I am working with Python and RaspberryPi 3 recently. My task is to write the data (RFID together with date and time into the MySQL database). Date and time works, they ...
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90 views

Raspbian not clearing systemd logs

I have some scripts that are running via systemctl. They generate lots of logs. My raspberry pi crashed, I checked and found out the SD card was full, and there were huge files in /var/log. I have ...
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50 views

Setting up Rasbian, WI-FI connexion and SSH directly into the SD card

I would like to set-up everything on my Raspberry Pi Zero (WI-FI and SSH) without the need of a keyboard and monitor, and I was wondering if I could do it directly from my main PC into the SD card, so ...
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25 views

Erratic motor behavior from a Pi being controlled through a websocket

I'm in the process of trying to put together a small "robot" that can be controlled over the internet. I'm trying to get the code for the drive motor controls down now, and I've hit an odd issue. ...
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1answer
61 views

Why is there unallocated space at the beginning of Raspbian image file?

I always wondered why there is unallocated space at the beginning of any medium written with a Raspbian image file. I usually use dd to do so, whatever medium I use (flash drive, SD card or USB drive)...
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69 views

How to Autostart Music Player Daemon (MPD) so music will play as soon as the Pi is powered on?

I am making an internet radio using a raspberry pi B+. I am using Music Player Daemon (MPD) and MPC. I have it mostly working as expected but I can not figure out how to get MPD to autostart when I ...
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25 views

getting Zoom UAC2 usb audio to work

I'm trying to get a USB audio device working on a raspberry pi 3. It is listed when I do aplay -L as default:CARD=UAC2 Default Audio Device sysdefault:CARD=UAC2 Default Audio Device No ...
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1answer
39 views

checking motor connection

i have recently bought a robotic kit called AlphaBot. The thing is the motor doesnt work even with simple code such as: import RPi.GPIO as gpio import time gpio.setmode(gpio.BOARD) gpio.setup(12, ...
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34 views

NGINX not available through port forwarding

I am currently trying to get NGINX accessable over the internet. I have installed NGINX on my raspi 3, configured and got it up and running on port 81. I am using the default config for NGINX. I have ...
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15 views

How to redirect domain to test server IP using bridged wlan0 to eth0 connection?

Following this tutorial https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md from "Using the Raspberry Pi as an access point to share an internet connection (bridge)" ...
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20 views

Pi-Zero can't boot past the user login screen - “Perpetual Login”

I have a pi-zero which I was most recently trying to install OpenSSL-1.0.2r on that wouldn't start up. I fixed the issue already by swapping out the SD card but I'm still not sure why the problem came ...
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1answer
41 views

Use internal pull up resistors with the gpio-keys module in the device-tree

I have an external board with some buttons that are attached to gpio 20 and 21 which connects these pins to ground when pressed: simulate this circuit – Schematic created using CircuitLab I'd ...
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29 views

Pi not booting, no green light(multiple reboots)

My Pi isn't booting, it was working just a day ago and i didn't change anything, the only thing i did multiple times is cut the supply power to reboot it to see why is my LCD screen is not working ...
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1answer
66 views

I cannot install a very popular component, libmysqlclient-dev. What's wrong?

On an up to date stretch, I want to install libmysqlclient-dev libmysqld-dev, but apt tells me it was not available in my sources. /etc/opt/sources.list looks like this: deb http://raspbian....
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Create Access Point in Latest Raspbian OS using Edimax EW-7811Un for compute module 3

I am trying to create an access point in compute module 3(and latest Raspbian OS) with the Edimax WiFi dongle. But it did not succeed to create. Anyone please help me to do that in the latest ...
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1answer
92 views

Raspberry 3B+ Wi-Fi in access point mode

I have installed the latest Raspbian Light on my new Raspberry 3B+ then followed the tutorial here: https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md My system is: $...
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73 views

hostapd acces point configuration file

I'm using this to turn my raspberry pi into an access point https://github.com/Phoenix1747/RouteryPi This is my hostapd.conf file: # Bridge mode bridge=br0 # Networking interface interface=wlan0 # ...
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2answers
34 views

Ethernet for SSH via Offline Router, WiFi Chip for Internet

So, here’s how it goes. I have an old Linksys router which I have my raspberry pi connected to via Ethernet. I SSH to it via my laptop or phone by connecting to my router via WiFi. I want to be able ...
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48 views

Is it possible to have both hidraw0 and hidg0?

I would like to know if we can have both hidraw0 and hidg0 at the same time? Detailed description :- I have a barcode scanner, raspberry pi zero W, zero4u hub. Barcode scanner is connected to ...
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1answer
276 views

how to increase fps for raspberry pi for object detection

I'm having low fps for real-time object detection on my raspberry pi I trained the yolo-darkflow object detection on my own data set using my laptop running windows 10. When I tested the model for ...
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1answer
40 views

How to modularize module in make menuconfig

In the make menuconfig interface, I would like to modularize a module. I can set the module with a star (*). It's meaning the module will be compiled in core. I'm not able to set it with a M . I'm ...
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42 views

How to configure duplicate screen on a Pi?

I have a Raspberry Pi 2 connected with a TouchScreen. I also connect another external display via HDMI. Goal I've been trying to make my external display show as duplicate mirror the one on the ...
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1answer
26 views

Using Earphones/Headphones with mic to give voice commands in DIY alexa on raspberryPi zero/3b/3b+

Can I use Using Earphones/Headphones with a mic to give voice commands in DIY Alexa on raspberryPi zero/3b/3b+ by connecting the 3.5mm male jack to the board via a USB type c/ micro USB adapter as the ...
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1answer
86 views

how to use xrandr tool for dual screen

I'm working on Raspberry 2B with Raspbian Strech. I plugged a USB / DVI adaptator which is listed in the lsub command : pi@raspberrypi:~ $ lsusb .../... Bus 001 Device 006: ID 17e9:4301 ...
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1answer
46 views

Swapfile on another machine

I have read in many places that increasing your swap file size, or making a big swap partition; can boost the memory of your system as temporary files can go there instead of in RAM. However, on ...
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42 views

Max number of DC motors supported on a pi zero w

I'm in possession of a pi zero w. I have purchased two L9110s modules and connected 2 coin vibration motors (80mA) on each of them. The modules are powered by an external power battery bank rated 5V ...
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1answer
36 views

Automation Project Relay Connection [closed]

How many Relays we can connect with one Respberry Pi? and can we connect two respberry devices with each other for home automation?
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18 views

change pi password on img before first boot, ssh [duplicate]

I want to be able to change the default pi:raspberry credentials on the image before first boot of a PiZero WH over the internet (phone hotspot, no home network). The default is a weak spot. I want to ...
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1answer
17 views

using a serial connection and using command screen causes the login text to scroll by rapidly multiple times

I'm trying to connect to my raspberry pi through a USB to TTL cable, however, when I use: sudo screen /dev/ttyUSB0 115200 It results in a console that is rapidly scrolling with the login message, ...
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47 views

How to connect different sensors in Raspberry Pi 2 model B?

I want to connect Temperature,Moisture and Humidity sensors in Raspberry pi at a time and I have to collect data continuously one after the other.And I don't know how to connect please help me... I ...
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2answers
37 views

i2cdetect detects device - Pi can't access / find it

Currently I'm working with a gyro-sensor and need to use i2c in order to use it. Using a Pi 3 B (os:NOOBS) on kernel: Linux raspberrypi 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv7l GNU/...
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1answer
56 views

Strange performance problems

I've been trying out a raspi 3 as a desktop recently, and have run into strange performance problems, particularly when using chrome. setup: raspberry pi 3 running raspbian stretch 2.5A power supply ...
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1answer
43 views

Script for monitoring RAID status [closed]

I am looking for help with the creation of a script to monitor the status of a RAID implemented using mdadm. Is it possible to create is an icon that can be clicked on, script starts up and displays ...
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37 views

Forward internet to usb0

I have Raspberry Pi 3 (running Raspbian) and Raspberry Pi Zero (DietPi). The Raspberry Pi 3 is connected to ethernet. The Raspberry Pi Zero is set as Ethernet gadget (according to this https://dietpi....
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1answer
100 views

How to connect a bluetooth device from the command line

I have a headless raspberry pi (it's networked but not plugged into any keyboard or monitor). I've previously used it to play music through a wired speaker plugged into the headphone socket. I was ...
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1answer
87 views

wine: cannot find L C:\\windows\\system32\\msl.exe

I want to run MSLPU39_Cloud_Ultrasound_Diagnostic_System_Version_1.2.exe software on raspberry pi 3 Model Vi.2. (This pi has Quad Core 1.2GHz Broadcom BCM2837 64bit CPU.) This is a windows based x64 ...
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2answers
74 views

How to connect to the internet using an Ethernet cable

I have an Ethernet cable which I use to connect to the internet on a desktop Windows machine. These are the IP settings I gave the Windows machine: IP adr. 172.18.14.19 subnet mask 255.255....
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22 views

How to cleanly reboot a Raspberry with iSCSI rootfs?

I have a setup where a Raspberry 3 boots with PXE and mounts an iSCSI volume as rootfs with iscsid. Now, it seems there is no way to cleanly reboot since there is the network chicken and the rootfs ...
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0answers
9 views

How can I make my touch lcd screen to work like a laptops touch pad

How can I make my touch lcd screen to work like a laptops touch pad? Is it possible because I am not able to access the corners of the lcd and I can't use the Pi correctly. Is it possible to make it ...
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19 views

VNC Viewer and Timing Out

I am attempting to VNC access a server through a RaspPi B+ running Raspbian. I can access the server fine using ssh; however, the pi unit seems to have port 5901 and 5902 blocked. I am VPN'd into ...