All Questions

0
votes
0answers
10 views

Can Raspbery Pi 4 hardware decode 4k@60hz H.265 10bit video?

I have seen it has H.265 support, but not specifically for 10 bit. Can anyone confirm this?
1
vote
0answers
11 views

Raspberry PI Zero Qt GUI Animation too Slow rendering performance

I have using the Qt by cross compilation method by this site instruction by this configuration: ./configure -release -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/raspi/tools/...
1
vote
0answers
8 views

Using an additional WiFi dongle to create WAP and switch

I followed the answer to this question: Access point as WiFi router/repeater with additional WiFi-dongle To have my 3 B+ act as a WiFi hotspot where wlan1 connects to the internet (WAN) and the pi ...
0
votes
4answers
34 views

Using Raspberry Pi to flash its own SD card

I'm developing a Buildroot OS for the Raspberry Pi, and my workflow requires very frequent re-flashing of the SD card to test new iterations. The process of removing the SD card from the Pi, flashing ...
2
votes
0answers
7 views

Permanently set keyboard repeat rate on Raspberry Pi?

I cannot seem to set the keyboard repeat rate permanently no matter what. I don't like the default setting as it is way too slow. After setting the keyboard Character Repeat delay and interval via "...
1
vote
0answers
7 views

What is the exact configuration (e.g. MIMO configuration) of the 802.11ac of the Pi Model B?

The specs for the Pi 4 Model B say dual band 802.11ac but not the degree of MIMO, critical for performance. What is it. Is there provision to add external antennae?
1
vote
0answers
7 views

Which Raspbian package contains the cdio C++ bindings?

I can't find them in libcdio-dev, and a search for the most important header file, cdio.hpp, in the Debian package catalog gave no results. A libcdio++ package seems not to exist either. Doesthis ...
1
vote
0answers
15 views

Utilising a Raspberry Pi as a wireless access point and a webserver

I have followed the official Raspberry Pi documentation's guide to setting up my Raspberry Pi as a wireless access point, with a shared internet connection using the bridge functionality discussed at ...
-2
votes
0answers
7 views

Start program when a device connects to local wifi

I'm looking for a python program that could detect when device has connected to a local wifi and start a specific program. And would communicate via SMS with raspberry pi.
0
votes
0answers
15 views

Managing home lights - Controlling smart lights

My first project with my raspberry is how to control the home lights, all of them. What I want is to have the ability to turn on and off each individual light. I know using manual switches won't work, ...
0
votes
0answers
46 views

Raspberry Pi Model 4 - Which nonfree parts remain?

As the Raspberry Pi Model 4 was released today, I reckon it's time to update this question. I'm aware of the fact that a lot of effort was put into writing usable free software GPU drivers as stated ...
0
votes
0answers
6 views

Raspberry PI 3 with Funcube Dongle Pro+ SDR does not read the antenna

I am trying to configure my RPi3 into a small receiving ground station. I already have installed the gnuradio, gqrv, gpredict packages. The RPi is connected to an SDR dongle (Funcube Dongle Pro+) with ...
2
votes
1answer
74 views

RPI 4 - POE enabled but requires hat?

I'm confused about the marketing on the new RPI 4. Here in the tech specs it says "Power over Ethernet (PoE) enabled (requires separate PoE HAT)". What does it mean it's enabled, but it needs a ...
1
vote
0answers
17 views

Use OBDII over WiFi

I think i've tried everything at this point, and nothing seems to work. I'm using an ELM327 WiFi Dongle, connected it to the Pi, created a socat using: sudo socat pty,link=/dev/ttyUSB0,waitslave tcp:...
2
votes
0answers
78 views

Is Raspberry Pi 4 fast enough to watch online videos with 1080p?

The Pi 4 has a faster processor (1.5 GHz Quad-Core ARM-Cortex A72). I am wondering if it is now possible to watch HTML5 videos on a browser (for example YouTube) and with 1080p quality without lagging ...
12
votes
1answer
1k views

Does the Pi 4 resolve the Ethernet+USB bottleneck issue of past versions?

The Pi 3 (and previous models) had an issue of bottlenecked bandwidth when using Ethernet and USB simultaneously. Is this resolved in the Pi 4?
-2
votes
0answers
20 views

How to interfacing memory in bare metal program?

What need to implement to run this code correctly on Raspberry pi 3 using bare metal code? #include <stdlib.h> int main(void) { int size = 500*1024*1024; int pos = 200*1024*1024; unsigned ...
0
votes
0answers
12 views

How to connect wifi wlan1 and share it by wlan0

How to connect wifi wlan1 and share it by wlan0 I would like to use raspberry pi become hostpot wifi. connect wifi by wireless and share it not use ethernet or lan.
1
vote
0answers
18 views

2 Chromium windows

I am trying to open up 2 separate Chromium windows using /.config/lxsession/LXDE-pi/autostart. I am able to open both urls when adding two lines but they open in the same browser as two tabs. I would ...
0
votes
0answers
11 views

Raspberry Pi 3 Model B Hung / Frozen, Including Clock?

I just happened to check on a Raspberry Pi 3 Model B with Raspbian Jessie 4.9.35-v7+ this morning and found it unresponsive. IIRC, there is an LED that is normally on when the Pi is on, so I thought ...
0
votes
0answers
10 views

Trying to use pymodbus as a slave but getting error

I have been successful using modbus-tk with an off the shelf modbus master simulator. However, when the real master is wired in (an Automation Direct PLC), the master does not get any response from ...
1
vote
1answer
15 views

Timeout function for user input on 4x4 membrane keypad with pad4pi

I'm making a python script for a 4x4 keypad that's connected to a raspberry pi where the user enters a 4 pin code and the program tells the user whether or not it's correct. In order to take in the ...
2
votes
0answers
119 views

HEVC playback on RPi 4

Raspberry Pi 4 lists HEVC (H.265) video decoding up to 4K@60fps in the spec. I'd like to get some feedback from people who already had a chance to try it out. Is this hardware or software encoding? ...
1
vote
1answer
80 views

Raspberry Pi 4 with Anker PowerPort Speed 5

So I'm thinking of getting a Raspberry Pi 4 and I know they have raised the power requirements to 5v 3amps, rather than buying the offical power supply would using the two blue fast charge ports on my ...
1
vote
0answers
15 views

nw.js disable alt+f4 and str+alt+del in kiosk mode

How can I disable the alt+f4 and str+alt+del key combi in Kiosk mode to prevent closing the application? I have read that this must be done with other Programms but I dont know how to do that.
0
votes
0answers
10 views

stop code via systemd vs termination

i have an 16*2 char LCD connected to PI ,a C++ code is written to display "Date/Time" on LCD. when i execute the compiled code on terminal using sudo ./LCD it stats showing Time and when i terminate ...
1
vote
1answer
23 views

Kiosk mode that can start porgamms/shell script .sh

I want to build a kisok mode much like in Windows where you can start Programms with .hta files. So is it possible to have a Kind of gui (with chromium I guess) that is able to start specific ...
2
votes
2answers
206 views

Finding or mounting boot partition to create /boot/ssh

To permanently enable ssh for a headless setup, my understanding is that the simplest method is to create an empty file /boot/ssh on the boot partition. However, when I write to a file using this ...
0
votes
1answer
25 views

How to restart setup wizard at first time startup?

I started up my raspberry pi, and accidentally pressed escape during new password creation. The startup wizard exited, and now I cant get back to the startup wizard. How do I restart the startup ...
2
votes
1answer
21 views

Any existing software which can safely update the Raspberry Pi with dual OS partitions?

We are using Raspberry Pis model 3B in some remote deployed products, each one is running a Raspbarian OS image. I'd like to investigate a software update scheme that would allow dual OS partitions, ...
0
votes
0answers
6 views

C920 cannot register after removing uv4l

I have a pi 3b+ running Raspbian stretch. c920 had been working out of box with the official v4l2 driver. I install UV4L to play with the webrtc features. But found some problems. So I did an apt ...
1
vote
1answer
27 views

Installing Raspbian without recommended Software from NOOBS

Is it possible to install Raspbian (without the Recommended software) from NOOBS? Last time I chose Raspbian from NOOBS installation menu it also included the recommended software (Mathematica, ...
1
vote
1answer
20 views

Sound jumping back and forth

So my issue is that whenever I play an mp3 from the pi the sound starts jumping back and forth. So the audio starts playing it jumps forwards 5 seconds and after a few seconds it jumps back to where ...
1
vote
0answers
21 views

Making Python3 default on command line

I have been trying to run the Jupyter notebook on my Pi but the Kernels will not install into Jupiter even though I downloaded them through the Pi's Software download window. A little bit stumped and ...
0
votes
0answers
8 views

Loading root file system from NFS

I managed to simulate a Cluster HAT like environment with a Linux machine. I launched rpiboot with the modified config.txt, cmdline.txt and initramfs (which is missing from the original setup but is ...
1
vote
0answers
12 views

About code of GPS Neo 6M with Raspberry Pi3

Firstly my GPS only blinks led upto 1hour only and thereafter no connection in day. Why it is so? Also my this code is not working (with LCD display). It shows syntax error as SerialException: ...
0
votes
0answers
14 views

How can I setup USB OTG with a Raspberry Pi Zero W and an iPad over USB-C using Arch Linux?

Arch Linux systemd-networkd I want my Raspberry Pi Zero W to show up as an ethernet device to my iPad. It is doable. It's been proven to work. The problem is in the details. After ensuring there is ...
1
vote
1answer
27 views

Open chromium on boot

I'm trying to open chromium when the Raspberry Pi 3B+ boots. I've found this post, but my raspberry doesn't seem to have the /home/pi/.config/lxsession folder. I tried creating the autostart file but ...
0
votes
0answers
11 views

Interfacing SIM800L with PPP [LCP Terminated by Peer]

I am using SIM800L, and managed to interface it with RPi3. After successful configuration on /etc/ppp/peers/rnet, my file looks like this connect "/usr/sbin/chat -v -f /etc/chatscripts/gprs -T ...
0
votes
0answers
14 views

Make sox play .mp4 files

I am trying to play audio files through usb speaker on Raspberry Pi 3B+. As I understood, sox only has mp4 support if you compile it agains ffmpeg. So far I did git clone git://git.code.sf.net/p/sox/...
0
votes
0answers
14 views

Using Raspberry Pi Camera (CSI) with Windows 10 IoT Core

I want to use the official Raspberry Pi Camera on my Pi which is running the current Build of Windows 10 IoT Core. I figured out that this will not to work using the UWP stack. Microsoft Tutorial ...
0
votes
0answers
18 views

UART for barcode scanner [on hold]

I made my RPi Zero W as an HID gadget. So it acts as a keyboard when it is connected to my PC. And I need to read barcode on that RPi at the same time. I am planning to use UART to read hid input ...
1
vote
1answer
26 views

Cronjob does nothing?

Does anyone know about crontabs here? I've programmed a fine dust station with values ​​acquisition, LCD display and so on. The particulate matter station is to be exhibited at the university, but ...
1
vote
1answer
59 views

No internet on client device when connected to Raspberry Pi

I've been trying to set up RPi to act as both a wireless AP and wifi station simultaneously. I've got nothing but errors and bugs so far. I did however find this guide that creates a virtual AP and ...
0
votes
0answers
15 views

Connect Philips Hue Bridge 2 via Raspi to Wifi

Is there a possibility to connect my Hue Bridge to a wifi network through my Raspberry Pi 3 B+ with Raspbian Stretch Lite. I live in an apartment compound with a separate wifi network provided to ...
-1
votes
1answer
28 views

The Stablest Linux Distribution on Raspberry Pi

What is the stablest linux distribution for Raspberry Pi? I tested Ubuntu core, Ubuntu server and Raspbian, but both two type of Ubuntu OS didn't stable and crash a lot. I need a linux ...
0
votes
0answers
19 views

Raspberry pi showing nginx welcome page on local IP after uninstall

I have been fiddling with nginx to make a reverse proxy for Deluge with no avail on my Raspberry Pi 3 running the latest version of raspbian. So, I attempt to uninstall it. I did the usual thing, sudo ...
3
votes
0answers
24 views

Cost-effectiveness of Pi cluster

Does it make sense to use Pi cluster for real computation? My use case is to carry out intensive computation tasks 24/7. The tasks are pleasantly parallel, and there will be minimum inter-node ...
0
votes
0answers
15 views

I can't connect to windows samba network using Raspbian and Pi-Top OS Polaris

I have a Raspberry Pi 3B+ running Raspbian, and a Pi-Top with another Raspberry Pi 3B+ running Pi-Top OS Polaris (which is mostly Raspbian). My issue is that they can't see nor connect to any of the ...
2
votes
1answer
67 views

Firefox Arm64 available but RapsPi 3B+ still 32 bit

I want to be able to use my Raspberry Pi 3B+ as a desktop system. In order to do that, I need to be able to make use of apps such as Firefox-ARM64. Given all of the confusion regarding migrating ...

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