Questions tagged [raspberry-pi-desktop]
For question about Debian with Raspberry Pi Desktop - a operating system for PC and Mac with the Raspbian Look&Feel. Runs from a live disc, in a virtual machine, or installed on a computer.
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How to stream RaspiCam video on webpage on Django server running on other PC?
Hey I wanted to stream rpi cam live footage to a webpage hosted on django server running onther Pc.Any suggestions on how to do it.Thanks.
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0
answers
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How to continuously check Pin status in infinite while loop
I am working with Raspberry Pi 4 and using python for some project.
The sample code is as below:
while True:
if( GPIO.input(a)==GPIO.LOW):
if __name == '__main__':
try:
...
- 121
6
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3
answers
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Is it possible to record the screen and Audio on a Raspberry Pi 4 model B
I wanna record my screen and audio, Is It Possible? how to do that?
I use Raspberry Pi 4 Model B.
I still new, I hope you can help.
thanks.
- 161
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0
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PIVPN with Wireguards - Hide IP
i have a question: i installed PIVPN with Wireguard protocol. From my mobile phone, my endpoint is the my ip public and with a specific port, I reach out my VPN. Perfect! My data are encrypted between ...
- 153
2
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0
answers
295
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Samsung Flip + Raspberry Pi 3
I have started to work with a brand new Samsung Flip digital paperboard (WM55H).
This device works well with my laptop (WIN10) but i would like to have another PC connected to the screen in any ...
- 21
0
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0
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207
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QEMU emulator window is not showing up
I am trying to run custom kernel on QEMU emulator version 2.11.0. Compilation done successfully but QEMU emulation window is not showing up.
Should I use different QEMU emulator version? I am on ...
- 1
0
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0
answers
459
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Can't get OpenCV up'n'running in Raspberry Pi, what should I do? (details in the description)
I followed the whole tutorial (https://www.deciphertechnic.com/install-opencv-python-on-raspberry-pi/) line by line, but at the end when I imported the OpenCV library in Python CLI, it gave this error:...
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2
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Why won't my TV see the Raspberry Pi 4 as a source
I recently got a Raspberry Pi 4B and i used a 128GB MicroSD card and copied over the files from Noobs 3.2.1. I connected the MicroHDMI > HDMI to my TV and connected the power adapter and turned it on. ...
- 103
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1
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Need troubleshoot fix my Raspberri Pi camera
So my MotionEye setup works fine, but after like 24 hours everyday, when I go connect the IP address it won't connect for some reason... And I can see that the Raspberry Pi3 and the Camera is working, ...
- 21
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0
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43
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Permanent Arduino usb address on RPi!
So my project is using to Arduinos slaves to RPI that is master. They communicate through USB.
Each time I remove one of the Arduinos I need to modify the .Py script to add the new USB alocated.
Is ...
- 131
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1
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202
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Is my PI 3 B+ fine after this odd short-circuit behaviour?
I know that anything more than 5v touches any GPIO then it's dead but I was changing the wiring and accidentally plugged a 12v 2A (for motor supply) connector to a female connector which leads to GPIO ...
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Is the Debian with Raspberry Pi Desktop available as a 64bit download
I downloaded the Debian with Raspberry Pi Desktop to install on my laptop so I had the same environment on my laptop and Raspberry Pis. However, I find that the installed Java version is a 32 bit ...
- 778
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0
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630
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picamera incorrect buffer length
I am currently using a pi camera module to stream video using flask and at some point, it randomly crashes. I found a similar question over here and they say that clearing the stream helped them sort ...
- 111
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1
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698
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Video playback on Raspberry Pi 3
I have a raspberry pi 3 connected to one of my TV's HDMI inputs. I've installed VLC, but videos won't play. The image will hang and the audio will continue to play in the background. Regardless of ...
- 31
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0
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More Fingerprint IDs in r307 Finger Print sensor
I am using PyFingerprint python library. It's finerprintID storage capacity is 1000. How can store more than 1000 fingerprint IDs ?
my fingerprint sensor is r307
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1
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What is the easiest way to set static ip in raspberry Pi?
I want to do port fowarding of my raspberry Pi, so first I need to set static ip. I searched in Google but didn't find any easy answer.
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0
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780
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How to set the USB port name in raspberry pi 3?
I'm using 2 ports such as /dev/ttyUSB0 and /dev/ttyACM0, but when I remove one of this ports and put it again, the port's identification changes. How can I force a name to my fisical port in order to ...
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1
answer
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How to install gcc 7 and g++ 7 on NOOBS_v3_2_1 version..?
The preinstalled gcc version on Noobs 3_2_1 is 8.3.0. I would like to downgrade or install 7.4.0 version on it.
When i try to run
sudo apt-get install gcc-7.4
I get Below error.
E: Unable to ...
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0
answers
2k
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Green light always on after a while for Raspberry pi 3 Model B V 1.2 2015
I boot the raspberry pi correctly, the red light is on (solid light) and the green light blinks. After a while, (it can be few hours or a couple of days) the green light stays solid and it does not ...
- 1
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509
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How to change back in default raspbian desktop preference?
This is what I did, I changed something in the repository listing and my desktop suddenly changed after a reboot. It looks good now but it is using more processor and increasing the heat of my board. ...
- 1,808
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1
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176
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Boot time problem
i want to reduce boot time on my Raspberry Pi 3B+. I'm using this tutorial http://himeshp.blogspot.com/2018/08/fast-boot-with-raspberry-pi.html and i done 1,2 and 3 step. After this i reboot Pi and ...
- 11
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3
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542
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Help need with python script for PiCamera
I am working with the Raspberry Pi camera and need some help regarding the python script. I need to capture a set of 5 images continuously every 5 minutes interval until I want it to stop. This set of ...
- 19
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1
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Run python script on Raspbian desktop through ssh access
I have a RaspberryPi with a PiTFT 3.5 display connected. The display is configured to mirror the HDMI output and the Pi is running Raspbian desktop.
Now what I am trying to do is to run a python ...
- 115
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4
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113
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What can I use to program a Raspberry Pi 3 board like an Arduino board?
I have a Raspberry Pi 3 board. I want to use it like an Arduino Uno board. My problem is very simple in that, I used 'Arduino' software to link with my Arduino Uno/Nano boards to blink LEDs. I have ...
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0
answers
139
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Running a visual studio 2019 c++ code with cryptopp library on raspberrypi for performance analysis
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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vote
0
answers
50
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Command to verify that desktop is loaded completely [closed]
What is the terminal command that verifies RaspbianOS is loaded completely? Any other command that does not return the value unless the environment is loaded is fine also?
- 127
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0
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297
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How does the RPi Boot work?
I am a complete beginner in Raspberry pi and have very little knowledge of the Operating system. So to put on the OS on my new Raspberry Pi I come across the "RPi Boot".
When I follow the steps as:
...
- 13
0
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1
answer
488
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PIGPIO not detecting I2C device but i2cdetect -y 1 detects it and I can even run my codes well in SMBUS
I have a Raspberry Pi 3 Model B+.
My I2C device which is this (exact breakout board) isn't getting detected through PIGPIO Library. The sensor works very well with the example codes which uses SMBUS ...
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0
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68
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MFRC522 and Bluetooth not work together
I have a program in which I use pyqt5, MFRC522 and bluetooth. I have 3 threads, one for the interface, one for the MFRC522 and one for the bluetooth. If I run the MFRC522 and the bluetooth separately ...
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0
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Can I connect CJMCU-4541 MICS-4514 Carbon Monoxide Nitrogen Oxygen Sensor with Raspberry Pi zero
This sensor CJMCU MICS-4514 Carbon Monoxide Nitrogen Oxygen Sensor is arduino compatible can it be used with raspberry pi
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1
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1
answer
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symbol lookup error: undefined symbol: _ZN7QWidget8qwsEventEP8QWSEvent
I have cross-compiled executable file from QT 4.8.7. I am running it on a Raspberry PI (Ubuntu), with QT 4.8.7 and QT declarative module installed. When i run the executable file on my raspberry pi, i ...
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0
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128
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How do I cron schedule a playlist shortcut on my desktop
How do I trigger a shortcut "My_Favourites.xspf" that lives on my desktop.
I would like to start playing this playlist of music in the morning to wake me up.
Just to explain better: When I double ...
- 11
0
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0
answers
82
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Could I use Processing.py to display text and shapes on a Waveshare ePaper display?
I am new to Raspberry Pi and programming in general. I have very basic knowledge on Processing.py and I would like to know is it possible I could use this library to display shapes and text on a ...
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0
answers
136
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Desktop text shadow
Is there a way to enable desktop text shadow in Raspbian’s DE (and specifically the pcmanfm which is being used to display desktop icons)?
I only managed to find this solution which describes the way ...
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2
answers
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What is the value for gpu_mem using Raspbian Buster?
I have installed Raspbian Buster on a Raspberry Pi 3B+ and would like to set the gpu_mem to the value for the best performance. When I set it to 32, VLC would crash with no logged errors. After ...
- 11
0
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0
answers
77
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Remote Desktop Connection not working on Raspberry Pi 3B+
I had tried:
$ sudo apt-get install tightvncserver
and
$ sudo apt-get install xrdp
and it worked however, after turning off the Pi and coming back it no longer worked.
I then tried:
$ sudo apt-...
0
votes
0
answers
70
views
wireless display for MAC
I have a MAC and I am looking to add two additional displays to my laptop without having to run cables to it. Is there an app or something I can install on my Raspberry pi to be able to use it as a ...
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2
answers
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Auto-execute desktop shortcut problem
I have created file /home/pi/Desktop/DecoderPro.desktop with the contents
[Desktop Entry]
Type=Application
Encoding=UTF-8
Name=DecoderPro
Comment=JMRI DecoderPro
Icon=/home/pi/JMRI/resources/...
- 439
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1
answer
337
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cv2.namedWindow freezes in Raspberry Pi 4
I'm trying to open a namedWindow using openCV in raspberry pi but it freezes after cv2.namedWindow("image")line. However, the project works in Windows. Before it freezes it prints the following ...
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2
votes
1
answer
416
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Running Hologram cellular network from startup issues [cannot run on rc.local or .bashrc]
I’m playing around with the hologram Nova cellular USB kit and I’m trying to create an automatic connection using the /etc/rc.local file. Hologram uses it's own way of connecting to a ppp0 network ...
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3
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Ethernet communication between Raspberry Pi and Windows PC
I am working on project which involves sending datastream from Raspberry Pi to Windows PC.
This should only be done through Ethernet link.
I looked for ethernet libraries but I did not find any.
Also ...
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2
votes
1
answer
672
views
How to connect 3V3 UART logic level to the 5 V RS232 C logic level?
How to connect the 3.3 V Raspberry Pi UART logic level to the 5 volt RS232 C logic level?
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1
vote
1
answer
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Connecting Raspberry Pi to SFM3520-OP fingerprint module
I want to connect an SFM3520-OP fingerprint module with the RS232C serial port to the Raspberry Pi UART but I am doubtful about their logic level. Should I use a Max2323 or does it not need it?
- 33
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1
answer
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Open in Terminal in Raspbian
How can I get the "Open in Terminal" Option when I right click in Raspbian OS ?
It opens the terminal in the current directory.
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vote
1
answer
90
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raspberry pi home automation sphinx
Hello.
I'm suffering from this problem. Had anyone here dealt with it before, if so please help me. I'm running out of the time.
I already downloaded cont_ad.h to sphinxbase library but nothing has ...
- 21
0
votes
1
answer
436
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How do I use a smartphone/tablet as a microphone for the Raspberry Pi 3
I have my own Samsung tablet and i also own a Raspberry Pi 3, and I use the Raspberry Pi 3 as a daily driver and also have a very small YouTube channel with around 20 subs. I need a microphone so I ...
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0
votes
2
answers
86
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Raspberry Pi tolerance towards high temperature [duplicate]
Can we use Raspberry-Pi 3 model B in a temperature range of 33-38°C for long duration? If yes for how long can this be done?
We need it to work for 21 days continuosly and after this the cycle repeats ...
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3
answers
176
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Raspberry Pi Desktop always launches into the first install wizard
I am installing Raspberry Pi Desktop onto a VM in Parallels. Everytime it boots up (I do select "Run with Persistance" at the start) it launches the first-time boot wizard ("Before you start using it,...
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votes
2
answers
2k
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Raspberry Pi Desktop, Guest Additions: Access denied under root
I've been trying to install Guest Additions for Raspbian Desktop on VirtualBox hosted on Linux. The script won't run even under root. How is it possible?
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1
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Installed Raspberry Pi Desktop on old windows laptop. Wifi and ethernet not working
Very new to this. I had an old laptop laying around and wiped out windows and installed Raspberry Pi Desktop. My Cd/dvd works. Usb ports work. But ethernet and wifi are both down.
Does anyone know ...
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