Instructions

Published: 16.08.2019 Copyright by Joy-IT 9
3.2“ / 3.5“ Touch-Display
Calibraon for the 3.5 "display:
If calibraon of the touchscreen is necessary, this can be done with the following
Steps are performed. First, the calibraon tool needs to be downloaded.
To do this, open a terminal window and enter the following command:
Now restart your Raspberry Pi so that the touch display is recognized correctly:
Now the calibraon can be started with the following command:
There are now four consecuve points lit, which must be pressed to calibrate the display. Subsequently,
four calibraon values are output in the terminal, which are stored in the le
"99-calibraon.conf" must be entered.
Open the le:
Enter the values in the following line here:
"MinX" corresponds to the rst value, "MaxX" to the second value, "MinY" to the third value, and "MaxY"
to the fourth value. Aer saving the le and reboong, the new calibraon data will be applied.
5. TOUCHSCREEN KALIBRIERUNG
sudo apt-get install -y xinput-calibrator
DISPLAY=:0.0 xinput_calibrator
sudo nano /usr/share/X11/xorg.conf.d/99-calibration.conf
“Option "Calibration" "215 3947 3901 244"
sudo reboot