Screen Flipper

This script vertically flips the screen and touch panel coordinates on linux. This was designed for use with the following raspberry pi touch screen:

Amazon link: https://www.amazon.com/dp/B0C7BYHN5C Wisecoco No-Cable-Needed Dual-Speaker with OSD 10.1 inch Raspberry Pi LCD Touch Screen Portable Monitor IPS 1024 * 600 HDMI Touchscreen Display for RPi 4B 4 3b+ 3 2 Zero B B+

This was ONLY tested on a Raspberry Pi 3b+ running bullseye

Installation

Copy this script to /usr/local/bin:

sudo cp screen_flipper.py /usr/local/bin/

Make the script executable:

sudo chmod +x /usr/local/bin/screen_flipper.py

Create an app launcher

It can be convenient to create an app launcher that triggers toggling the screen flip.

Create the launcher file:

nano ~/.local/share/applications/screen_flipper.desktop

Add the following to the launcher file:

[Desktop Entry]
Name=Screen Flipper
Comment=Flips the screen vertically
Exec=/usr/local/bin/screen_flipper.py
Icon=connect_creating.png
Terminal=false
Type=Application
Categories=Utility;

Add the launcher to the taskbar:

1. Right click on the task bar
2. Select "Add/Remove panel items"
3. Double click an "Application Launch Bar"
4. Add the "Screen Flipper" app that is under the "Accessories" menu

Reset on boot

If running this script negatively impacts the touch coordinates after a reboot, you can add a systemd service that force resets to the normal orientation:

Create the systemd service:

sudo nano /etc/systemd/system/screen_flipper_startup.service

Add the following to the service file:

[Unit]
Description=Screen Flipper Startup Script
After=graphical.target

[Service]
Type=simple
ExecStart=/usr/local/bin/screen_flipper.py --reset

[Install]
WantedBy=graphical.target

Reload systemd:

sudo systemctl daemon-reload

Enable the service to start on boot

sudo systemctl enable screen_flipper_startup.service