Thank you Joan, your answer works for the Pi4 and put me on the write path and everything is compiling as it should! I upvoted your response but I have less than 15 somethings so it doesn't show up.
FULL SOLUTION FOR 3B+:
sudo dpkg -i ...
A version of wiringPi is probably installed with Raspbian.
I doubt it is included with Ubuntu.
You will probably need to build from source.
You could try installing the binary from the author's site.
sudo dpkg -i wiringpi-latest....
I had exactly the same issue on my pi zero W, with exactly this config on it, using Ubuntu 18.04 as host. I found the answer here: https://raspberrypi.stackexchange.com/a/109482/125981
Turns out it was ModemManager poking at the tty at the same time. Solution as described in the linked answer is to stop and disable ModemManager (or only stop if you need it ...
This will help to enable the SPI on the RPi.
It will enable the available SPIs on the RPi device.
You can access the SPI0 and SPI1 only from header pins (assuming you have RPi 4 model).
After enabling the SPI, it depends on the device/slave and you that how you connect and access it. You can access either using user-space application (C or Python by doing ...
Hmm. Using Ubuntu 20.04 image arm64 Raspberry pi 4
start_x=1 in /boot/frimware/usercfg.txt has no effect:
ubuntu@ubuntu:~$ sudo snap install picamera-streaming-demo
error: snap "picamera-streaming-demo" is not available on stable for this
architecture (arm64) but exists on other architectures (armhf).
and raspi-config enable camera says "...
I know this is an old post but I was searching for the exact same question and fond this answer: https://www.element14.com/community/community/raspberry-pi/blog/2019/09/12/installing-pycharm-on-raspberry-pi
I have tested it on Twister OS 1.8.2(based on raspberry pi OS) and Ubuntu Mate 20.04 and it works without issues.
TL;DR go to https://www.jetbrains.com/...
I have made it using cortex-a9 which is suitable for raspberry pi 2 (I have followed actually this tutorial)
so the command for that should be:
$qemu-system-arm -kernel vexpress_04_zImage -append "root=/dev/mmcblk0p2 rw" -m1G -cpu cortex-a9 -M vexpress-a9 -sd pi-snappy.img
Which is I think should be fine nowadays
I was able to get it working by following the instructions here: https://askubuntu.com/questions/1156466/cannot-find-bluetooth-device-ubuntu-core-on-raspberry-pi-3-b
Running the following command (twice!) eventually started Bluetooth:
sudo hciattach /dev/ttyAMA0 bcm43xx 921600 -
For troubleshooting see also
dmesg | grep bluetooth
Mine shows a bunch of ...