cm3588-oled-screen

OLED screen support for CM3588 NAS Kit

Basic info

It's working on Armbian with a minor tweak to enable I2C. In case of CM3588 NAS Kit, it's I2C-8.

I haven't found a way to enable I2C on any of the official system images (OMV/Debian/Ubuntu). If you know how to do that, please let me know.

The issue with Armbian is that it's installed on SD card and I don't know how to install it on eMMC. Again, if you know how to do that, please let me know :)

To enable I2C in Armbian, I had to:

make copy of /boot/dtb-6.1.43-vendor-rk35xx/rockchip/overlay/rk3588-i2c8-m2.dtbo as /boot/dtb-6.1.43-vendor-rk35xx/rockchip/overlay/rockchip-rk3588-i2c 8-m2.dtbo to make it "visible" by the config
add overlays=i2c8-m2 to /boot/armbianEnv.txt

Once system is rebooted, the I2C-8 should be accessible.

Installation

There's no installation script yet, sorry ;)

You need to work as root.

Clone this repo to /opt/oled-screen/ directory: cd /opt && git clone https://github.com/ppsx/cm3588-oled-screen oled-screen

Get into the dir: cd oled-screen

Create Python's venv: python -m venv venv

Activate it: source venv/bin/activate

Install dependencies: pip install -r requirements.txt

Copy *.service file to systemd dir: cp oled-screen.service /etc/systemd/system/

Reload systemd: systemctl daemon-reload

Start the service: systemctl start oled-screen

If everything is ok, the service has to be enabled to start after booting: systemctl enable oled-screen That's it.

More info

When system is booting and oled-screen service is started, it shows nice boot logo animation. Then System ready is printed. The "User button" is used to switch between different "pages". Each page contains some basic info about: CPU utilization (CPU), memory and swap (MEM), disk (system disk and NVMe) and network (eth0). After one minute of inactivity the screen is turned off. User button brings it back to the first page (CPU).

Preview

oled-screen.mov

ppsx / cm3588-oled-screen Goto Github PK