Published: 16.08.2019
Copyright by Joy-IT
9
3.2“ / 3.5“ Touch-Display
Calibration for the 3.5 "display:
If calibration of the touchscreen is necessary, this can be done with the following
Steps are performed. First, the calibration 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 calibration can be started with the following command:
There are now four consecutive points lit, which must be pressed to calibrate the display. Subsequently,
four calibration values are output in the terminal, which are stored in the file
"99-calibration.conf" must be entered.
Open the file:
Enter the values in the following line here:
"MinX" corresponds to the first value, "MaxX" to the second value, "MinY" to the third value, and "MaxY"
to the fourth value. After saving the file and rebooting, the new calibration 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
