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RaspberryPiFoundation / python-build-hat

Build HAT Python library
MIT License
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Python Build Hat for Ubuntu 22 #210

Closed wmbbarnett closed 7 months ago

wmbbarnett commented 7 months ago

Is there a port of the Python Build Hat libraries for Ubuntu 22?

lurch commented 7 months ago

According to the Ubuntu package-search, it's only available (as a pre-built package) for mantic and noble https://packages.ubuntu.com/mantic/python3-build-hat ( https://wiki.ubuntu.com/DevelopmentCodeNames says Mantic Minotaur is 23.10 )

wmbbarnett commented 7 months ago

Ubuntu 22 is the Long Term Support version, supported until 2032. ROS 2 is available only on Ubuntu 22. Since I am building a project based on robotics, I need this infrastructure. Not having Build Hat for Ubuntu 22, dictates that I must move to a different motor control environment.

lurch commented 7 months ago

Do the instructions here not work on Ubuntu 22 ?

wmbbarnett commented 7 months ago

ran the sample twice, waited two minutes for response. Each time it hung on line 5 "motor = Motor('A')" traceback follows

Traceback (most recent call last): File "/usr/src/car/build-hat-test.py", line 5, in motor = Motor('A') File "/home/pi/.local/lib/python3.10/site-packages/buildhat/motors.py", line 108, in init super().init(port) File "/home/pi/.local/lib/python3.10/site-packages/buildhat/devices.py", line 58, in init Device._setup() File "/home/pi/.local/lib/python3.10/site-packages/buildhat/devices.py", line 82, in _setup Device.instance = BuildHAT(firm, sig, v, **kwargs) File "/home/pi/.local/lib/python3.10/site-packages/buildhat/serinterface.py", line 118, in init self.write(b"version\r") File "/home/pi/.local/lib/python3.10/site-packages/buildhat/serinterface.py", line 257, in write self.ser.write(data) File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 640, in write abort, ready, = select.select([self.pipe_abort_write_r], [self.fd], [], None)

wmbbarnett commented 7 months ago

also my gpio driver for the servo no longer works.

mutesplash commented 7 months ago

Your code is getting hung on the serial port code. I would try communicating directly with BuildHAT with a terminal emulator to determine if you have the serial port set up properly. If it is working, you may need to pass the device to use into the HAT constructor if it is not the default that the library expects.

lurch commented 7 months ago

have the serial port set up properly

Here's how you'd do that in Raspberry Pi OS, but I've not used Ubuntu on Pi so I dunno what steps would be needed for that https://www.raspberrypi.com/documentation/accessories/build-hat.html#setting-up-your-raspberry-pi

wmbbarnett commented 7 months ago

Many thanks. The serial port was the issue.
I edited cmdline.txt in /boot/firmware to remove 'console=serial0,115200' config.txt already had the uart enabled.

I rebooted and my various devices began working. No need to switch my motors!!!