Touchscreen LCD for the teensy 3.6?
- Thread starter HerbalTea
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KurtE
Senior Member+
Something like http://pjrc.com/store/display_ili9341_touch.html ?
KurtE
Senior Member+
There are a lot of people who have done lots of work on the library, especially Paul!
There are many other libraries out there that support a lot of different display controllers. So the real question is, can you find a display you like. Obviously ones that connect up using HDMI to things like the RPI, would be problematic. But any of them that connect using Serial, or I2C, or SPI can likely work. Some easier than others.
There are many other libraries out there that support a lot of different display controllers. So the real question is, can you find a display you like. Obviously ones that connect up using HDMI to things like the RPI, would be problematic. But any of them that connect using Serial, or I2C, or SPI can likely work. Some easier than others.
I've tried the examples. The XPT2046_Touchscreen/examples/TouchTest/TouchTest.ino doesn't include using the display and just spits out random numbers to the terminal unless I slow the t3 down a bunch.
The "XPT2046_Touchscreen/examples/ILI9341Test/ILI9341Test.ino" example has a similar problem and neither include any kind of info regarding touch screen calibration or how to convert touch coordinates to pixels. Does anyone have a working example for the T3?
The "XPT2046_Touchscreen/examples/ILI9341Test/ILI9341Test.ino" example has a similar problem and neither include any kind of info regarding touch screen calibration or how to convert touch coordinates to pixels. Does anyone have a working example for the T3?
KurtE
Senior Member+
I have a version of the touch paint program for the Ili9341 display, with my ili9341_t3n library: https://github.com/KurtE/ILI9341_t3n/tree/master/examples/touchpaint_xpt2046
That did the touch paint using it. Note: my calibration may not be completely accurate. You should be able to adjust for your own display by having a simple program which spits out the raw touch values and move to the different edges and find the min/max values. Then you can use map function to convert to screen coordinates.
I believe @defragster has a similar example. Both were mentioned in other posts before.
That did the touch paint using it. Note: my calibration may not be completely accurate. You should be able to adjust for your own display by having a simple program which spits out the raw touch values and move to the different edges and find the min/max values. Then you can use map function to convert to screen coordinates.
I believe @defragster has a similar example. Both were mentioned in other posts before.
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