OLED Stats & Ledshim with Retropie

[bobster316]

I have a micro desktop system with a Raspberry pi 4 8g, Neopixel led, ledshim and 0.96 OLED stats display.

While using raspberry pi os 32 bit, i can start all the python scripts to start the components in the crontab, so when the Pi boots up everything is working.

I tried the same with retropie os and none of the components work i.e. Neopixel led, ledshim and 0.96 OLED stats display

Appreciate any help to configure correctly with retropie

Thanks

[mitu]

RetroPie's image is based on Raspberry Pi Lite, so it should work. What Pi model/RetroPie version ? Please add more info.

Are the python scripts working if you start them manually ? What scripts are you using (link/post on pastebin.com) ?

[bobster316]

Raspberry Pi 4 8GB
Retropie 4.7.1
Linux 5.10.63-v7l+ armv7l GNU/Linux

All the below scripts work if run manually

OLED Display -
sudo python3 /home/pi/OLED_Stats/stats.py

Ledshim -
sudo python3 /home/pi/Pimoroni/ledshim/examples/rainbow.py

Neopixel Led Ring -
sudo python3 /home/pi/rpi_ws281x//python/examples/strandtest.py

Thanks

[mitu]

So add the scripts to autostart.sh (running in the background) and see if they'll run. Or better yet, create a service for each of them - see an example at https://gist.github.com/emxsys/a507f3cad928e66f6410e7ac28e2990f.

[bobster316]

@mitu said in OLED Stats & Ledshim with Retropie:

o add the scripts to autostart.sh (running in the back

Thanks Mitu, i created a service for each of them and it works fine.
Thanks for your help

[bobster316]

I have noticed an issue with the OLED stats display which still noot working when the Pi boots up.
If the command to run the oled python script is run manually it works.
Appreciate if anyone can help to fix, thanks

OLED Setup

sudo apt-get update
sudo apt-get full-upgrade
sudo reboot
	Log back into the pi once its booted up again
sudo apt-get install python3-pip (select Y to continue when prompted)
sudo apt update (select Y to continue when prompted)
sudo apt full-upgrade (select Y to continue when prompted)
sudo reboot
	Log back into the pi once its booted up again
sudo apt-get install python3-pip 
sudo pip3 install --upgrade setuptools
cd ~
sudo pip3 install --upgrade adafruit-python-shell
wget https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/raspi-blinka.py
sudo python3 raspi-blinka.py (select  y to continue then Y to REBOOT NOW then login)
sudo i2cdetect -y 1

 

If 3c has not shown up use command raspi-config 
Interfaces
I2c
Enable
Save
Reboot
Check again

pip3 install adafruit-circuitpython-ssd1306
sudo apt-get install python3-pil (select Y to continue when prompted)
sudo pip3 install adafruit-blinka
sudo pip3 install adafruit-circuitpython-ssd1306
git clone https://github.com/mklements/OLED_Stats.git
cd OLED_Stats
python3 stats.py (the oled display should show stats)

OLED Service

cd /lib/systemd/system/
sudo nano oled.service

Enter the below in blue into the empty file and save/exit

[Unit]
Description=oled
After=multi-user.target

[Service]
Type=simple
ExecStart=/usr/bin/python3 /home/pi/OLED_Stats/stats.py
Restart=on-abort

[Install]
WantedBy=multi-user.target

sudo chmod 644 /lib/systemd/system/oled.service
chmod +x /home/pi/OLED_Stats/stats.py
sudo systemctl daemon-reload
sudo systemctl enable oled.service
sudo systemctl start oled.service

[mitu]

@bobster316 said in OLED Stats & Ledshim with Retropie:

I have noticed an issue with the OLED stats display which still noot working when the Pi boots up.

Without an actual display, it's difficult to diagnose. But, since you created a service unit for it, why not look at the error messages logged by the service to see what's the error printed by the script ?