Steps to set up Pi Rack Pro OLED Ubuntu 22.04.3 LTS

[danbyers1]

This is a quick write up to get the OLED's working for those who are using Ubuntu Server 22.04.3 LTS as the instructions provided from UCTRONICS are specific to Pi OS.

Note that I've not got the Pi's to work with the shutdown button using aftermarket PoE hats. This will come later and I'll edit this post when I find it.

Steps to set up Pi Rack Pro OLED Ubuntu 22.04.3 LTS

Install raspi-config
sudo apt install raspi-config

enable i2c
sudo raspi-config
Select 3. Interface Options and press enter
Select I5. Enable/Disable automatic loading of I2C kernel module and press enter
Select Yes
Select Finish

Add all of the following to the /boot/firmware/config.txt

Add all of the following to the /boot/firmware/config.txt under the second [all] section, and place a # in front of "dtparam=audio=on" to comment it out/disable it.

sudo nano /boot/firmware/config.txt

dtparam=i2c_arm=on
dtparam=i2c_arm_baudrate=400000
dtoverlay=gpio-shutdown
dtoverlay=gpio_pin=4
dtoverlay=active_low=1
dtoverlay=gpio_pull=up

Control O to save, Enter to commit the changes, Control X to exit

Install the following python packages
sudo apt install -y python3-pip python3-dev python3-pil python3-setuptools python3-rpi.gpio i2c-tools

Add your user to the i2c group - Be sure to change (username) with your user ID
sudo usermod -aG i2c username

Clone the RM0004 repository
git clone https://github.com/UCTRONICS/SKU_RM0004.git

Running the "./deployment_service.sh" file in the SKU_RM0004 directory:

Be sure to edit the "deployment_service.sh" file - you will want to update the /boot/config.txt information to reflect /boot/firmware/config.txt, and save it.

**Change the deployment_service.sh file
cd SKU_RM0004
sudo nano deployment_service.sh

• find the BOOT section and edit to reflect "boot/firmware/config.txt.
• control O , enter, control X

After you've saved it, you should be able to successfully run it.

Compile
cd SKU_RM0004
make

Run the display
./display

you should see the IP of your host, CPU, Memory, Ram, and Temp

Control C to exit the display

**Now add the automatic start script - change (username) to the userID **

sudo nano /etc/rc.local

#!/bin/sh -e
cd /home/username/SKU_RM0004
make clean
make
./display&
exit 0

Control O to save, Enter to commit the changes, Control X to exit

Change rc.local from read only to executable
sudo chmod -v +x /etc/rc.local

Enable rc.local
sudo systemctl enable rc-local.service

Start rc.local
sudo systemctl start rc-local.service

Validate rc.local service is active
sudo systemctl status rc-local.service

• you should see " Active: active "

Reboot
sudo reboot

Your OLED should magically work now without manually running the ./display file.

There are a few folks here that contributed to the overall solutions and want to Thank - WhirlyHat for finding the correct path to the boot file, and bigbrovar for the i2c info and python packages. The Automatic start up script, I had to google and got the answer.

[mrm695]

Thanks to much of what's posted here an other threads, I have the UCTRONICS OLED screen running properly on Ubuntu Server 22.04.4 LTS. One of the issues I am having is with the POWER BUTTON. I cannot seem to get it working while running the Desktop Environment (GNOME). Does the power button only function while running outside the DE?