All Questions

Filter by
Sorted by
Tagged with
0
votes
0answers
12 views

Measuring latency in video streaming with Rasp Pi4

I'm a new to Raspberry Pi. I am using the camera modules of rasp for video streaming in a local network. I'd like to measure the latency between capturing the image and showing in the laptop. And ...
0
votes
0answers
9 views

How to tether LINKZONE 2 hotspot to a Rpi4

I’m using a Rpi4 as a bridge. Rpi4 is connected to the hotspot WiFi wireless. Can I tether the hotspot to Rpi4 with usb and turn off WiFi?
1
vote
1answer
525 views

Text editor for Raspbian Lite

I am using the Raspbian Lite image for the first time and realize there isn't any text editor. I am also using SSH to bring up the remote Raspberry Pi terminal on a LAN from a Windows 10 laptop. How ...
0
votes
0answers
14 views

nmap not showing hostname after changing it in /etc/hostname

When I run nmap -sn 192.168.1.0/24 I get (among other things) Nmap scan report for 192.168.1.198 Host is up (0.17s latency). MAC Address: 56:31:C4:A0:1B:3E (Unknown) which I know is referring to the ...
0
votes
0answers
31 views

install Qt on raspberry pi os lite

Can I install QT on raspberry pi os lite on my raspberry pi 4 b? If yes please how to start?
-1
votes
1answer
30 views

Issue connecting to the WiFi with Raspberry Pi 4

I am running into this issue where I have to run the same command every single time and I need to constantly have the window where I ran the command running to make sure the WiFi is connected. sudo ...
0
votes
0answers
52 views

Kali Linux 2020.4 Raspberry Pi 400, no wifi

I downloaded Kali Linux RaspberryPi 2 (v1.2), 3 and 4 (64-Bit) (img.xz) version 2020.4 image from https://www.offensive-security.com/kali-linux-arm-images/ I ran the image on Raspberry Pi 400. I can ...
1
vote
1answer
34 views
+50

How to cope with an over eager xfs disk that always takes precedence over the actual boot/root ssd?

I have a raspi 3 with two attached external usb storages. A smaller ssd with the system (fat32/ext4) and a large hd (xfs) with data. My cmdline.txt tells the system from which UUID to boot from and it ...
1
vote
0answers
15 views

No sound with Waveshare WM8960 Audio HAT

I have a Raspberry Pi Zero running Raspberry Pi OS 10 (buster). I have connected a Waveshare WM8960 Audio HAT but am not getting any audible sound from it. The driver seems to be installed correctly ...
0
votes
1answer
18 views

Expanding boot partition for Ubuntu MATE

How do I expand the /boot_ub (Ubuntu MATE) partition? I want to upgrade to 20.04 to get some support for MATE but I can't upgrade because the partition is almost full. I tried to remove old kernel ...
0
votes
0answers
16 views

RetroPie games are laggy

I had RetroPie installed for about a week now. I wanted to manage my roms easier so I installed the MATE desktop environment core. I managed my roms easy and rebooted. I currently have it configured ...
-1
votes
0answers
15 views

Wrong reply-to / return path when sending a mail from command line

i have installed ssmtp and configured ssmtp.conf and revaliases as suggested in 1000 threads. My problem is: When sending a email, the return path is wrong. The mail looks like this: From: myemail@...
0
votes
1answer
23 views

Can i connect using WiFi Direct to use smartphone as monitor. No internet access!

I would like to know how to connect my RPi 3 model B+ to my Samsung Galaxy s10e (sm-g970u) using WiFi Direct to use my smartphone as the display screen as i have NO internet access at my home and i ...
-1
votes
3answers
36 views

Uninstall Python2 in Raspberry Pi

I can observe both versions of Python2 and Python3 in my Raspberry Pi. Both of them were by default. Why do we have both the version of python in Raspbian? Is it safe to uninstall Python2 and only ...
0
votes
1answer
23 views

How to get full UART safely on Pi4?

I need to use full UART. I was using dtoverlay=pi3-miniuart-bt to achieve this but the name suggests it's for pi3, I have pi4. Should I use miniuart-bt instead, or disable-bt as I would want to turn ...
0
votes
0answers
16 views

Stream video - triggered by motion or request [closed]

Goals capture live video (not saving yet) forward stream to a server (rtsp feed nginx) in one of 2 cases: Motion is detected (using openCV4nodejs - open for suggestions), and saving it on server ...
-1
votes
2answers
27 views

Installation of sympy for python in Raspberry Pi

I am remotely accessing RaspberryPi from my laptop via SSH. When I run a Test_sympy.py file in Raspberry Pi desktop and import sympy it runs pretty well as shown below: However, when I access this ...
1
vote
0answers
38 views

Max30102 not visible in i2cdetect

I'm trying to connect Max3012 to Raspberry PI. I actually tested: two Max30102 versions (?): one with 7 holes on one side and another one with 4 holes on one side and 4 holes on another AND, trying ...
0
votes
0answers
21 views

Raspberry Pi Hosted, Network LED Manager

I have been looking for a while and I have not found an answer. I am looking for a vendor neutral, LED manager/server that would let me manage all of the wireless LED strips already in my network. ...
2
votes
0answers
67 views

Use Raspberry Pi to monitor traffic on local network through a specific port

Is there a way to have a Raspberry Pi Model 3B+ monitor traffic on the local network through a specific port? I am running Plex on another machine on the network and have my router port forwarding to ...
0
votes
1answer
36 views

Raspberry Pi loses connection when external drive is plugged in

The situation I have a USB-C Samsung external drive. I bought a USB-A adapter adapter for it so that I can plug it into my new Raspberry Pi 4. It is running Raspbian OS with the latest updates. My Pi ...
1
vote
0answers
22 views

How can i cross-compile for Raspberry Pi Zero with WSL?

I am working on a project with the Raspberry Pi Zero and since I don't have a monitor to connect the Pi and don't want to use vi through ssh I thouhgt that cross compiling would be a decent solution. ...
-1
votes
0answers
15 views

an error while downloading jitsi meet on raspberry pi with ubuntu 20.04

I am an absolute beginner and was trying to download jitsi meet on my raspberry pi 4 with ubuntu 20.04, I was following this tutorial: but I ran into these errors: and I have no idea what to do, so ...
0
votes
1answer
22 views

Rasperry Pi wireguard configuration and user access

I'm trying to setup Wireguard on my Raspberry Pi, which kind of succeed, but now I have problems with additional configuration of it. Is there a way to allow some users to see other computers in local ...
0
votes
2answers
36 views

isc-dhcp-server fails on boot on wlan0 interface

I am setting up a DHCP server running on my wireless interface. During boot the following messages show up in /var/log/syslog: Nov 28 07:56:48 pi-w isc-dhcp-server[503]: Launching IPv4 server only. ...
0
votes
0answers
23 views

Mount a folder of an external NAS twice on raspberry pi

I've mounted a folder from my NAS to a folder in my pi using: sudo mount -t cifs -o username=user,password=123 //10.0.0.8/WDSync/Experiments/my_db /home/pi/wdcloud_share and with: df -h it shows that ...
0
votes
0answers
17 views

NFS client access denied

I created a basic NFS share on my RPi4 following the RaspberryPi doc and PiMyLife tutorial. First, installed nfs-kernel sudo apt-get install nfs-kernel-server -y then, set permissions sudo chown -R ...
0
votes
0answers
38 views

Attaching a digiscope to a Raspberry PI

I have a digiscope arriving soon which has a Canon camera adapter included. I've a project in mind to mount a Raspberry Pi High Quality Camera onto the scope and rig up some image recognition software,...
0
votes
0answers
15 views

Raspberry Pi 4: Logitech KM220 keyboard attached to Manhattan 4 KVM doesn't work

After my RPi last updated a week ago, I have a problem with the keyboard listed in the subject. A few months ago, this keyboard works with the same hardware (but without this upgrade). I have no ...
0
votes
0answers
26 views

Can't run raspistill on Ubuntu 20.04 (rpi-4)

My system Distributor ID: Ubuntu Description: Ubuntu 20.04.1 LTS Release: 20.04 Codename: focal Raspberry: Raspberry 4B Raspberry Camera: V2.1 $ uname -a: Linux ubuntu 5.4.0-1022-raspi #25-...
-1
votes
1answer
21 views

How to exit from crontab -e?

I wanted to run my python program at startup for Raspberry Pi. I followed youtube videos (ref: https://www.youtube.com/watch?v=zRXauWUumSI&t=8s) and accomplished the same by using the crontab ...
0
votes
2answers
59 views

Can you use the Rpi compute module CM4 without the IO board?

I want to use the raspberry pi for some projects, although the normal pi is too big and I want it to be as compact as possible. I thought about using the compute module(without the IO board) since it ...
-1
votes
0answers
17 views

Resources To Learn How to Develop Linux LKM for Raspberry Pi? [closed]

I plan on developing a linux driver for a USB web-camera, but I completely forgot how to develop Linux drivers and LKM development. I was wondering if there are any resources to learn this.
0
votes
0answers
24 views

Pi 4B not booting

I bought my Raspberry Pi 4B with 1GB RAM last year, and I recently turned it on and found this error(?) screen. I can't seem to find the issue: I already reset the EEPROM I tried a different SDCard ...
-1
votes
0answers
18 views

static ip with wpa2-enterprise and wpa_supplicant

I am trying to connect to an office network using wpa2-enterprise and set a static IP in it. At the first time I connected with dhcp, got an IP, disconnected and added the following info: ...
0
votes
0answers
29 views

What does the camera “module” add on top of the SONY IMX219?

New to electronics and Raspberry Pi, and I'm trying to understand exactly what a camera module is, versus just the camera/sensor itself. Most hobbyist RPi projects advocate the use of the RPi camera ...
0
votes
1answer
20 views

how can i get real time data from the raspberry pi sensor to my android app?

how can I display real-time data from the raspberry pi heat sensor into my android app made with the android studio (not an android app build on a raspberry pi ) every time the sensor measures a ...
0
votes
0answers
12 views

How to sync Apple Calendar to display it on a LCD 16x2 i2c [closed]

I would like to know how to sync the Apple Calendar to display upcoming events on an LCD 16x2 i2c using Python. Thank you
0
votes
1answer
12 views

Lauching feh from python script over remote connection (pi zero w)

hoping someone might be able to help a complete newbie here. I am connected to a terminal session in my pi zero via putty and Xming Server and have installed feh to inspect image files. so if I enter ...
-1
votes
1answer
44 views

Mount root partition of Raspbian OS on mac? [closed]

Is there a way to mount the root partition of the Raspbian SD card on a mac? I need to edit the dhcpcd.conf file. I had my pi running as a router and IP camera (so I wouldn't need someone else's wifi ...
0
votes
0answers
12 views

Error while creating the node [duplicate]

When I connect a UV projector to my raspberry I create two new nodes, /hidraw0 and /usb. Although the projector isn't responding because the node should be a serial lilke /ttyUSB*. Can I get any help ...
-1
votes
0answers
32 views

White screen after power on

"I'm working on raspberry pi4 and 7" display. When I start the raspberry, but after 3 seconds of black screen, it turns white. I have already formatted the sd but the problem persist. Which ...
0
votes
0answers
19 views

Save ip address of device connected to RPi network

how can I automatically save to file an IP address of a device connected to RPi (configured as a router). Every time a new device is connected to my network I would like to open a file (or create if ...
1
vote
1answer
36 views

How to open a window with the output of a sensor connected via Bluetooth serial port with Python?

I connected 3 sensors via Bluetooth serial port to a Raspberry Pi 4 with the following Python program: import socket serverMACAddress1 = 'XX:XX:XX:XX:XX:XX' serverMACAddress2 = 'XX:XX:XX:XX:XX:XX' ...
1
vote
0answers
16 views

How to connect raspi peripherals at a distance?

I would like to connect a few peripherals to my Raspi GPIO such as a access control keypad and ipcams. I know IPcams can run many meters on LAN cables but what is recommended for a peripheral such as ...
-2
votes
1answer
25 views

White screen after the power on [duplicate]

I'm working on raspberry pi4 and 7" display. When I start the raspberry, but after 3 seconds of black screen, it turns white. I have already formatted the sd but the problem persist. Which is the ...
2
votes
0answers
18 views

Plymouth bootsplash starting too late

I've set up a Plymouth bootsplash inside an initramfs on Raspbian buster. (It's using something similar but not identical to the raspi-config RO overlay.) But I've noticed that there's a ...
-1
votes
0answers
16 views

Do we have any feature similar to Intel's Running Average Power Limit(RAPL) to measure energy consumption for raspberry Pi [duplicate]

Intel's Running Average Power Limit(RAPL) hardware feature allows to monitor energy consumption across different domains of the CPU chip, DRAM, and on-chip GPU. Do we have such hardware feature ...
0
votes
0answers
28 views

Userspace and Kernel space graphics drivers for the pi 4

I recently bought a raspberry pi 4 to aid in my computer architecture studies. Also, one of my study projects is to build a kiosk application using buildroot (not raspbien). I have taken some time to ...
0
votes
0answers
22 views

Use Raspberry pi as a WhatsApp calling device [closed]

I dont necessarily need video calling capability. The idea is to have a few buttons wired to the GPIO, harcoded to each contact. Pressing the button will automatically place the call to the ...

15 30 50 per page