Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

Most Popular

more tags
1500 questions
12
votes
2 answers

How to build custom OS for Raspberry pi from scratch?

I am new to kernel and embedded Linux. I have recently bought a Raspberry Pi and booted it using the Raspbian. I was fascinated by the Pi, to learn more on Embedded I have decided to make an home automation system. I wanted to use my own kernel, and…
CenTauR
  • 123
  • 1
  • 1
  • 4
12
votes
2 answers

How to get 5V power output from Raspberry pi Pico

After going through the Raspberry pi Pico datasheet it has only 3.3V power output. I want to power some devices that require 5V from the Pico. How can I get 5V output from the Raspberry Pico?
Nyagaka Enock
  • 221
  • 1
  • 2
  • 4
12
votes
2 answers

Why does USB port enumeration change?

I'm using a Huawei GMS/UMTS USB modem with Gnokii and Gammu. The modem was in the lower port on Pi. With dmesg | grep tty it would show up on /dev/ttyUSB0 and /dev/ttyUSB1. (2 USB devices on 1 stick is normal, in this case). I configured Gnokii and…
RolfBly
  • 619
  • 1
  • 9
  • 23
12
votes
7 answers

Not able to connect Raspberry Pi Pico

I am trying to connect to Raspberry Pi pico using Thonny. I am using Ubuntu 20.04. Giving Error Couldn't find the device automatically. Check the connection (making sure the device is not in bootloader mode) or choose "Configure interpreter" in the…
PSKP
  • 328
  • 1
  • 2
  • 7
12
votes
3 answers

How can I enable the GUI on the Debian "Squeeze" Image?

The downloads page indicates that this image includes LXDE, but I'm having trouble enabling it.
ramblinjan
  • 4,030
  • 7
  • 33
  • 52
12
votes
4 answers

12V device to a Raspberry Pi

For my school engineering project, I have a coin acceptor device which I would like to link to the Raspberry Pi. However the device requires 12V in power. I have an idea of what to do to power the device, however I have heard that there is a risk of…
ChaoticPanda
  • 395
  • 2
  • 3
  • 7
12
votes
4 answers

How to change host name before first boot?

Is it possible to change the host name before the first boot? I've tried changing the name in /etc/hostname, but then the Pi doesn't boot properly. Is there something else that needs to be done? This is intended for a Raspberry Pi running…
jtpalmer
  • 138
  • 1
  • 7
12
votes
2 answers

How to install lighttpd with php?

I've installed lighttpd, and it is working fine. I've tried to install php5 as described here, but when I try the last step sudo service lighttpd force-reload I get: [FAIL] Reloading web server configuration: lighttpd failed! and php is not…
Euphorbium
  • 539
  • 2
  • 7
  • 15
12
votes
2 answers

What file system format should I use on flash memory?

This is for a data logger application running under latest Debian/Raspbian. The app will run long term and write about 1M of ASCII per day to a large flash drive (say, 32GB). There will be few reads, just when the data is downloaded every few…
Guy
  • 1,657
  • 1
  • 16
  • 18
12
votes
4 answers

Watchdog on the RPi4

Does the Raspberry Pi 4 have a hardware watchdog timer like the RPi3 does? If it does, which kernel module should I load in order to use it? I'm running Raspbian Buster, kernel 4.19.93-v7l+ Thanks.
tlqmj
  • 159
  • 1
  • 1
  • 8
12
votes
1 answer

Raspberry PI 3B. Wifi and bluetooth shared antenna?

I'm working on a project that involves WiFi and BLE, and for this I would like to use an esp32 due to its lower price, but there will be timing issues since the wifi and Bluetooth antenna are shared. I know that the Raspberry Pi 3B is capable of…
Gabriel Gardin
  • 131
  • 1
  • 6
12
votes
7 answers

apt-get update gives me errors with mirrordirector.raspbian.org

I am trying to install tightvncserver on my rPi model A running Raspbian. I am connecting to the rPi via SSH from my laptop. I can connect to the internet, but cant install the package. It seems to be a problem with mirrordirector.raspbian.org…
Awsumman
  • 149
  • 1
  • 1
  • 5
12
votes
3 answers

Do wireless and wired connections have separated bandwidths?

I have a Raspberry Pi 3 B+ board and I am trying to connect it both to a local wireless hotspot and another machine via cable. I am not connected to the Internet on any of the devices and all data transfer is local. My question is that do wireless…
MohammadHossein R
  • 231
  • 2
  • 6
12
votes
2 answers

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 is it? Do I have access to it?
Voltage Spike
  • 236
  • 1
  • 2
  • 11
12
votes
3 answers

How do I mount the .img files under Ubuntu?

I just downloaded the Debian and Arch Linux files and I would like to mount before I burn into the SD card. How can I mount the img? I tried to mount but I'm getting the following error: sudo mount -o loop archlinuxarm-13-06-2012.img /mnt/ mount:…
Mokus
  • 983
  • 5
  • 10
  • 19
1 2 3
…
99 100