Added touch flip flags to TFT_eSPI driver.

[tpitman]

I don't know if this is the right way to do this, but it is the way that works for me. I am creating this pull request knowing full well that you might come up with a better way. I need the touch to be rotated independent of the screen graphics and don't see a way to do one without the other. So adding these flags lets me rotate just the touch input.

[ImpulseAdventure]

Hi Tony — in general, the calibration was supposed to take care of the display vs touch orientation so it is interesting to find a case where we need an additional flip setting. It could very well be needed!

Just so that I understand your particular device setup and rule out any calibration issues, can you confirm the following:

• Which touch driver are you using?
• If it was a resistive touch panel, can you attach the output of the diag_ard_touch_calib calibration sketch?

Thanks!

[tpitman]

I am using the FT6236 hardware and I have the FT6206 selected in the configuration files.

My screen is not rotated at all, but both x and y are flipped.

On Tue, Aug 25, 2020 at 10:20 PM Calvin Hass [email protected] wrote:

Hi Tony — in general, the calibration was supposed to take care of the display vs touch orientation so it is interesting to find a case where we need an additional flip setting. It could very well be needed!

Just so that I understand your particular device setup and rule out any calibration issues, can you confirm the following:

• Which touch driver are you using?
• If it was a resistive touch panel, can you attach the output of the diag_ard_touch_calib calibration sketch?

Thanks!

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[ImpulseAdventure]

Thanks Tony... yes, we might need to apply some additional options to support your particular capacitive display.

Could you run the following test for me?

• Load examples/arduino/diag_ard_touch_calib
• Modify (~ line 40): Comment out the #error Calibration only supported...
• Modify (~ line 199): Change DET_RAW_RANGE_MIN to 150
• Run the first 5 steps of the calibration (pressing on each cross-hair)
• Please paste or attach the serial monitor output to this issue

Thanks!

[ImpulseAdventure]

Hi @tpitman — we can certainly add the ability to flip the capacitive touch orientations, much like you had proposed here.

The reason for my test request in https://github.com/ImpulseAdventure/GUIslice/pull/249#issuecomment-681624325 was to see if we can utilize the existing calibration sketch to detect the orientation settings automatically.

Thanks

[tpitman]

Sorry this is taking so long. Just got a lot going on and this is one project of many. I know you understand because you are in the same boat.

On Tue, Oct 20, 2020 at 8:13 AM Calvin Hass [email protected] wrote:

Hi @tpitman https://github.com/tpitman — we can certainly add the ability to flip the capacitive touch orientations, much like you had proposed here.

The reason for my test request in #249 (comment) https://github.com/ImpulseAdventure/GUIslice/pull/249#issuecomment-681624325 was to see if we can utilize the existing calibration sketch to detect the orientation settings automatically.

Thanks

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