Datasheet

AutoMagic Calibration Script

If you rotate the display you need to recalibrate the touchscreen to work with the new screen orientation. You can

manually run the calibration processes in the next section, or you can run a small Python script which will automatically

set a default touchscreen calibration based on the screen orientation.

This helper is automatically installed for you but if you'd like you can check it out here on github

Run it at the command line with

sudo adafruit-pitft-touch-cal

it will try to figure out what display you have installed and the rotation it's set up for

By default the script will attempt to read the screen orientation by examining the PiTFT module configuration with

modprobe. If the script can read the orientation it will print out the current orientation, the current touchscreen

calibration values, and the new touchscreen calibration values baesd on the current orientation. Before updating the

calibration the script will ask you to confirm that you'd like to make the change. Press y and enter to confirm.

https://learn.adafruit.com/adafruit-pitft-28-inch-resistive-touchscreen-display-raspberry-

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