sys-oled problems in Trixie

[jimbolaya]

I've been trying to get the sys-oled script working in Trixie, but I'm pretty out of my depth here.

 

I started with https://github.com/helios-4/sys-oled.git and https://github.com/rpardini/sys-oled-hc4.git

 

 

/usr/bin/python3 /usr/local/bin/sys-oled --display sh1106 --i2c-port 0 --rotate 2
Traceback (most recent call last):
  File "/usr/local/bin/sys-oled", line 140, in <module>
    device = get_device()
  File "/usr/local/bin/sys-oled", line 56, in get_device
    device = cmdline.create_device(args)
  File "/usr/lib/python3/dist-packages/luma/core/cmdline.py", line 241, in create_device
    device = Device(serial_interface=interface(), **params)
  File "/usr/lib/python3/dist-packages/luma/oled/device/__init__.py", line 75, in __init__
    self.command(
    ~~~~~~~~~~~~^
        self._const.DISPLAYOFF,
        ^^^^^^^^^^^^^^^^^^^^^^^
    ...<11 lines>...
        self._const.SETVCOMDETECT,      0x20,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        self._const.CHARGEPUMP,         0x14)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/luma/core/device.py", line 48, in command
    self._serial_interface.command(*cmd)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/usr/lib/python3/dist-packages/luma/core/interface/serial.py", line 93, in command
    self._bus.write_i2c_block_data(self._addr, self._cmd_mode,
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                   list(cmd))
                                   ^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/smbus2/smbus2.py", line 643, in write_i2c_block_data
    ioctl(self.fd, I2C_SMBUS, msg)
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: [Errno 6] No such device or address

 

The script wants to compile luma.core on it's own and Trixie throws up some walls to that. I was hoping to use the system libraries, so I installed python3-luma.core and python3-luma.oled. I'm not sure if it's better to override Trixie and just install the luma.core from the script.

 

Does anyone have any experience with this? Will I need to redo this with a Python venv?

[FredK]

@jimbolaya

IIRC it is sufficient to use the latest Helios4 image (https://dl.armbian.com/helios4/Trixie_current_minimal). OLED support is available.

[jimbolaya]

That's what I'm using.

 

> OLED support is available.

 

I'm not sure what this means. There doesn't appear to be a package or any software installed for it.

 

Do you have a place for me to look?

 

Unfortunately, the answer for 

was really not very helpful.

 

If I get it working, I'll post what I learn here, but I was unable to find any notes on that particularly on the forums or the Helios4 page.

 

Thank you for your time.

 

James

 

[FredK]

@jimbolaya

Did you use the informations at https://wiki.kobol.io/helios4/i2c/ ?