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votes
1answer
43 views

Modifying what is shown in the uART

I am working on establishing user communication (one may say a basic UI) from the user's PC to my Raspberry Pi, where the RPI would accept pre-defined commands from the user via uART and then process ...
0
votes
0answers
3 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 ...
0
votes
0answers
4 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@...
1
vote
2answers
466 views

Connect Android smartphone with Wi-Fi Direct to a Raspberry Pi

It is no problem to connect my Android Smartphone with Wi-Fi Direct to the printer at my home and print documents. But how can I use Wi-Fi Direct to connect the phone to a Raspberry Pi without a ...
2
votes
1answer
944 views

Using mopidy to stream audio to MPoD

I've installed mopidy on a clean build of Rasbian Jessie. I've managed to run it, and get MPoD to connect to it over my local WiFI. I've configured mopidy to enable the mpd server (hostname = 0.0.0.0 ...
1
vote
2answers
221 views

Artifactory Installation on Raspberry Pi 4

I have been trying to install Artifactory OSS on my new Raspberry Pi 4 (raspbian), but no luck so far. I tried all the following ways as suggested here but nothing worked. Archive Installation Docker ...
-1
votes
2answers
557 views

Kernel panic-not syncing: VFS: unable to mount root fs on unknown- block(179,2) running Raspbian Jessie

My RPi had power cut and after that didn't boot and this message comes on. I put a memory card in to PC and made changes in cmdline.txt file from /dev/mmcblk0p2 to /dev/mmcblk0p6 because I have seen ...
0
votes
1answer
22 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
2answers
96 views

Can I use a Sanyo tv as raspberry pi display?

So I have a decently old Sanyo tv laying around, and I want to put it to some use. I intend on using it as a display for my raspberry pi. All in all I was just wondering whether such a task is ...
0
votes
0answers
20 views

Raspberry pi 4 won't boot (sd card reader problem)

I have a problem with my raspberry pi 4 actually it does boot but only in this conditions: -if i do a fresh installation of my os on my sd card and I power my raspberry it boots if after that I do ...
1
vote
1answer
6k views

Touchscreen with Qt QML eglfs

The goal is to run QtQuick2 Qt5 applications on the RPI 2B with USB+HDMI resistive touchscreen (7" 800x480 AR1100 http://www.adafruit.com/products/2407). Current state Visual part is fine. Touch ...
0
votes
1answer
313 views

Ubuntu 20.04 KVM kernel for Raspberry Pi 4

I would like to deploy a VM from KVM template on Raspberry Pi 4 running Ubuntu server 20.04. The VM will be configured with an emulated x86_64 CPU. Is there a precompiled KVM kernel for it? If not, ...
-1
votes
1answer
17 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 ...
48
votes
4answers
233k views

How do I make serial work on the Raspberry Pi3 (or later model)

My Pi3 serial console produces rubbish and fails to respond to the keyboard.
6
votes
2answers
10k views

Where are the uarts on the raspberry pi 4?

The raspberry pi 4 has at least two uarts (as shown here), I know where I can connect to one of them. Pins 8, 10 and 12 have a uart as an option. Source: This site describes accessing uart1, where ...
0
votes
0answers
11 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 ...
0
votes
1answer
14 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
2answers
1k views

setting local ntp server does not work

I want to sync my RPI 3 to a local time server. I've installed ntp using apt-get. I edited the file /etc/ntp.conf and added the following line server [ip-address]. I restarted ntp using sudo ...
7
votes
4answers
11k views

SATA 3 SSD too slow on raspberry pi 4, even with external power

I have a Pi 4B (with latest firmware upgrade) running Raspbian Buster and a 2TB SSD with a SATA 3 interface. I'm using a SATA 3 to USB 3 converter that can also connect to external power when ...
-1
votes
1answer
9 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 ...
0
votes
0answers
9 views

Stream video - triggered by motion or request

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 ...
3
votes
2answers
2k views

Can I set the camera's shutter speed for video?

I need to have a low shutter speed to be able to capture a light that is only on for a few milliseconds each frame (light synced with camera fps, but only want it to capture when the light is on). How ...
1
vote
0answers
29 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 ...
1
vote
2answers
614 views

Raspberry Pi Virtual Machine using Virtual Box will not install?

I tried creating a Raspberry Pi VM using the official Raspberry Pi for Desktop iso located at https://www.raspberrypi.org/downloads/raspberry-pi-desktop/, but every time I run the install, I get this ...
0
votes
1answer
808 views

ultrasonic sensor stops after giving some reading when running in thread on tornado websocket python

I am using Ultrasonic sensor to get reading and am using python program for getting reading. And am using Raspberry pi for this. when am running python program independently its giving me reading ...
0
votes
1answer
12 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
2k views

Kivy won't listen to “fulllscreen” setting

Working on a Raspberry Pi Model 3 B, running raspbian. Running Kivy v1.9.2-dev0 and Python v2.7.3 Trying out one of the Kivy examples but for some reason the application won't come up in "Windowed ...
-1
votes
0answers
16 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: ...
1
vote
0answers
30 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

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-...
0
votes
1answer
230 views

KY040 Rotary Encoder not responding at all

Hey I'm very new to raspberry pi and decided to start a mall project including a rotary encoder. I found some guides online that I followed but I just can't get any signal from the encoder ...
1
vote
2answers
66 views

Is RPi 4B protected against GPIO shorting?

I read that a Pi 3's +5/3V GPIO pins when they contact, potentially frying the whole computer. Does this still happen/what's the risk of this happening on a 4B? Is it "protected" in any way? ...
0
votes
0answers
14 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. ...
0
votes
1answer
44 views
+50

Thickness of Pi 7" Display + driver?

I'd like to know the approximate thickness (as in, z-axis) measurement from the very front of the Raspberry Pi 7" display, with the display driver mounted, to the furthest back piece of said ...
0
votes
1answer
59 views

Running docker on Raspberry Pi Zero W

Today I was trying to install Docker on my Raspberry Pi Zero W. However, I ran into some weird issues. I installed the Docker Engine after reading through a bunch of tutorials, stackexchange questions,...
0
votes
0answers
25 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
10 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
vote
1answer
1k views

Trouble with motion on_event_start parameter

I am trying to set up a Raspberry Pi model B+ with PiCamera to be a security camera. Wifi connects to my home network, motion is installed, detecting motion and saving pictures, and I am able to send ...
0
votes
0answers
87 views

No sound with Jitsi Meet and ALSA

For a project I'm using a Raspberry Pi with ALSA. ALSA is configured and speaker-test provides me audio output. However, when I open Jitsi Meet in Chromium, there is no sound. When I open YouTube in ...
0
votes
0answers
12 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 ...
2
votes
5answers
11k views

Raspi won't start apache2 after I power cycled

Serious Raspi n00b here (I come from a Microsoft background) Had apache2 running with no issues. Unplugged the Raspi because I wanted to set up a powered usb hub for an external hdd. Got everything ...
1
vote
1answer
165 views

Does Raspberry Pi count as firmware

Say you make a system/gadget with a Pi and a bunch of sensors that the Pi gathers data from. Is the software on the Pi reading the data count as firmware? or the Raspbian OS itself?
0
votes
0answers
17 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
32 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,...
2
votes
1answer
180 views

How do I use a Raspberry Pi to install OpenWrt firmware on a BT HomeHub 5a or PlusNet Hub One router

I have a spare BT HomeHub 5a clone (actually a PlusNet Hub One router). I would like to install the OpenWRT firmware on it, in order to reliably use it as a wired wifi range extender without a DHCP ...
-1
votes
1answer
40 views

Mount root partition of Raspbian OS on mac?

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
14 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 ...
1
vote
1answer
177 views

Audio Injector stereo soundcard is preventing boot

I recently bought a Audioinjector stereo soundcard HAT to stream sound on my raspberry pi running Raspbian. I went to their website and installed the .deb installer file and ran it with audioInjector-...
0
votes
0answers
18 views

How do you make a tor relay node with a Raspberry Pi 0 W H?

I need a good step by step on how to make a tor relay node using a Raspberry Pi 0 W H. It has to be specifically for the Raspberry Pi 0 W H because it has wireless capability. All the other guides ...
-1
votes
3answers
1k views

Raspberry Pi 2 will not boot Hyperion

I recently bought the light berry HD kit to set up some ambilights for my TV. I have all the LED's set up around my TV and have all the wiring set up (HDMI splitter > HDMI to analogue > USB video ...

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