Unanswered Questions
9,485 questions with no upvoted or accepted answers
9
votes
0
answers
1k
views
Cannot Use SPI frequency above 500 kHz
I am running Arch Linux ARM on a Raspberry Pi 2 Model B, and I am attempting to communicate with a TFT display. I am writing a kernel module to interface with the display using SPI, and it works, but ...
- 55.6k
9
votes
1
answer
1k
views
Autologin into a webpage via the default GNOME-Webbrowser
I'm trying to call an HTML page like this with the Raspbian's default web browser and it leads me just to the default login-page.
Neither does it with Midori on the desktop.
When calling the exact ...
CommunityBot
- 1
7
votes
0
answers
967
views
connmanctl having problem with complex passphrase
The built in WiFi module seems to work fine, as it can connect to both of my open networks I created for testing, i.e. the 2.4GHz, and the 5.0GHz ones.
If I set a simple passphrase (i.e. contains ...
- 95
6
votes
0
answers
251
views
Raspberry as I2C Slave, how to slow down transfer rate?
I have had minor success using the PIGPIO library and interfacing the Pi as an I2C Slave (Using GPIO Pins 18 and 19 as SDA and SCL) with a Campbell CR1000X Datalogger
I am encountering a problem ...
- 61
6
votes
1
answer
1k
views
Rasberry Pi zero and 3 bluetooth transfer speed is slow RFCOMM
I am trying to send a series of bytes from the Raspberry Pi zero W to the Raspberry pi 3 via bluetooth. Im using the PyBluez python package.
I believe that Raspberry Pi Zero has Bluetooth 4.1 and ...
CommunityBot
- 1
6
votes
2
answers
2k
views
ffmpeg performance degrades over time
I am using a Pi Zero W with the Pi camera (noir) to stream live to Youtube using ffmpeg.
The command line I am using is:
raspivid -o - -t 0 -h 720 -w 1296 -fps 24 -b 6000000 | ./ffmpeg -ar 44100 -ac ...
CommunityBot
- 1
5
votes
1
answer
2k
views
Ubuntu 21.10 desktop environments freezing on Pi 400
I have created SD card with Ubuntu Desktop 21.10 using Pi Imager on Raspbian. It boots fine but when I interact with desktop environment, e.g. re-arrange the icons on the sidebar, the desktop ...
CommunityBot
- 1
5
votes
1
answer
2k
views
spi-bcm2835 fe204000.spi: could not get clk: -517
I'm using Ubuntu Server 20.04 on a Raspberry Pi 4 8GB and shut it down normally yesterday it just says this error on screen when starting the kernel spi-bcm2835 fe204000.spi: could not get clk: -517.
...
CommunityBot
- 1
5
votes
1
answer
5k
views
v4l2-ctl single frame capture produces image with green ending
I have a HDMI capture card and I'm using raspbian.
I want to get one single frame with v4l2-ctl command, then convert it to something common:
Get a frame:
# v4l2-ctl --device /dev/video0 --stream-...
CommunityBot
- 1
5
votes
1
answer
17k
views
wlan0: link is not ready
I have had my pi3 for a while now all of a sudden I start to get
IPv6: ADDRCONF (NETDEV_UP): wlan0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
and stalls there ...
CommunityBot
- 1
5
votes
0
answers
1k
views
Bluetooth PAN on the Pi Zero W
I have the following problem:
I want to host a webserver on my Pi Zero W and access it over Bluetooth. To achieve this i tried to use PAN as underlying layer.
The first time i followed this post.
Most ...
- 51
5
votes
1
answer
2k
views
Can I control GPIO Pins when using Android on the Pi 3?
I want to install Android on my Raspberry Pi for implementing a GUI app, which is easy to create using Android Studio.
But now I am confused about how to control the GPIO pins on the Pi 3 to turn on ...
- 153
5
votes
0
answers
2k
views
how to connect raspberry pi to google home app?
How am I to connect my Raspberry Pi 3 (PIXEL desktop) to the Google Home app if it already has Google assistant on it?
CommunityBot
- 1
5
votes
1
answer
2k
views
GY-521 module / MPU-6050 3x Accelerometer not detected by i2cdetect
I got this GY-521 module (https://www.aliexpress.com/item/MPU-6050-3-Axis-gyroscope-acce-lerometer-module-3V-5V-compatible-For-Arduino/2035920870.html?spm=2114.13010608.0.0.pRpLS4) and no matter what ...
CommunityBot
- 1
5
votes
1
answer
9k
views
Open Splash Page After Connecting to Wifi Hotspot
I'm using my pi3 to display a local "website" as described here Making a Raspberry Pi 3 accessible w/o configuration via WiFi and static IP/URL.
Therefore, I'm creating a hotspot with the pi. This ...
CommunityBot
- 1