Unanswered Questions
8,753 questions with no upvoted or accepted answers
9
votes
1answer
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 ...
7
votes
0answers
883 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 ...
7
votes
0answers
732 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 ...
7
votes
1answer
1k views
Thermal printer with Raspberry Pi 2 outputs only Chinese chars
Following thermal printer + raspi2 tutorial for printing images (https://learn.adafruit.com/networked-thermal-printer-using-cups-and-raspberry-pi/connect-and-configure-printer), I've already connected ...
6
votes
0answers
214 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 ...
6
votes
1answer
900 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 ...
5
votes
1answer
2k views
How fast can GPIO pins toggle on the Pi 4?
Benchmarking of the Pi 4 using the Python GPIO Zero library shows a significant increase in the frequency of toggling a GPIO pin on and off compared to previous models. This result is attributed to ...
5
votes
0answers
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 ...
5
votes
1answer
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 ...
5
votes
0answers
1k 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 ...
5
votes
0answers
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?
5
votes
1answer
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 ...
5
votes
1answer
8k 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 ...
5
votes
1answer
354 views
Wi-Fi transfers hang on Raspberry Pi 3
I was trying to transfer a 50 MB file to my Raspberry Pi 3 via samba and I noticed that after few seconds the transfer slows down until it stops, same thing via scp. It starts but after few seconds (5-...
5
votes
0answers
653 views
Debugging a RPi using SWD
Has anybody been able to figure out how to debug a Raspberry Pi 3 model B using SWD? To be clear, I'm looking to debug the Pi itself using SWD. We've tried setting up the GPIO pins to use JTAG-SWD, ...
