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1500 questions
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3 answers

Is there any built in LED connected with GPIO pin?

In Arduino a built in LED is attached with number 13 Digital pin. Is there any LED like Arduino in Raspberry Pi,which I can use to test my code?
Sohan Arafat
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Enable camera without Raspi-config

I would like to enable the raspberry pi camera without using raspi-config, as I need to do this in an automated bash script. Anyone know how? ended up pulling this out of raspi-config #!/bin/bash set_config_var() { lua - "$1" "$2" "$3" <…
Tom
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Raspberry Pi 4 VNC Remote Connection Desktop Error

Surroundings Raspberry Pi system: Raspbian Buster with desktop Direct connection using fiber Problem VNC connection remote desktop error: cannot currently show the desktop, I have enabled VNC and boot desktop automatic login option when booting,…
rxliuli
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Would E4rat or Ureadahead speed up the boot process from the SD Card?

I have Arch Linux (ARM). Will it boot faster on my SD card if I use E4rat to pre-load the boot process? Since it's flash based, will it have any difference in boot time? Is there a port to ARM for Ureadahead?
ArchHaskeller
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4 answers

PoE hat fan activation on OS other than Raspbian

I'm aware that the only officially supported OS that the PoE hat works on is Raspbian. I can confirm that both my hats work, and that the fan does switch on and off if I have Raspbian installed on the SD card the Pi is booting from. Currently,…
Larnu
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8
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2 answers

Remote communication with home server

I make home micro-server (based on Raspberry Pi). It has Internet and works 24/7. The server make some home automation, monitoring and control. It has no static public IP address (it's assigned via DHCP). I need a way to remotely communicate with…
user11519
8
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2 answers

Forcing DHCP to release and renew and use a reservation?

I am able to ssh into my new RPi. One of the things I like to do to my infrastructure devices is to go ahead and convert their DHCP assignment to a reservation. My router is a CradlePoint Firmware Version : 2.0.0, 2012/04/16 WiMAX Version :…
Cade Roux
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Why is hostapd masked after installation?

My question is somehow related to this question: hostapd doesent work anymore I have a fresh Raspbian Stretch system and then install hostapd via sudo apt-get install hostapd there are no error messages during installation, but afterwards if I want…
Stefan Wegener
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8
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3 answers

Raspivid: 'ES_OUT_SET_(GROUP_)PCR is called too late' & stream keeps freezing

First post here, hopefully i'm in the right place :) I'm attempting to stream low-latency video from my Raspberry Pi to my Windows PC using Raspivid and VLC. I'm no expert on this stuff and i'm mainly following tutorials and trying to understand…
Benjamin Hogervorst
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8
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1 answer

add-apt-repository does not work

I am trying to install Atom text editor on my Raspberry Pi 3 B+ with Raspbian as OS. I would like to install it via a package manager using the following commands (instructions found here): sudo add-apt-repository ppa:webupd8team/atom apt-get…
johnwolf1987
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8
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3 answers

Is it safe to power my external hard drive with a Raspberry Pi 3 B+ USB port?

I have a external hard drive that has written on it "5V ⎓ 1A". Both power and data transfer happen over a single USB. I have been reading about powering this hard drive with the USB ports on my Raspberry Pi 3 B+, but I want to make sure I'm thinking…
Eric
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8
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1 answer

Access point as WiFi router/repeater with additional WiFi-dongle

There are some tutorials to make an access point a WiFi repeater using only the on-board WiFi chip of a Raspberry Pi. But I want to use an additional USB/WiFi dongle as second interface for the up-link to an internet router, in the hope it would…
Ingo
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8
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Installing libraries via pip is taking forever. Raspberry pi 3b+

I tried to install scipy using pip3 install scipy as well as sudo pip3 install scipy and it got stuck at Building wheel for scipy for 45 minutes. Same is the case for cython. What is the fix or it just takes that long. numpy and other libraries like…
Tanmay Bhatnagar
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8
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2 answers

Raspbian - wpa_supplicant.conf Country meaning

I'm a bit confused of the country property in wpa_supplicant.conf. In official Raspberry Wifi Documentation it says this: On the Raspberry Pi 3 Model B+, you will also need to set the country code, so that the 5G networking can choose the correct…
Dino
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8
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Green LED blinking 7 times with rainbow colour image on screen

I have a Raspberry Pi 3 b. I tried to boot it to android things OS. But when I connect the Pi to power, it is showing nothing except a rainbow colour screen and the green led is blinking 7 times. Please help me correct this issue?
Jackie
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