Trying to get the Color 320x240 TFT Touchscreen, ILI9341 to work

[tenorjazz]

I am trying to the PJRC's color Touchscreen to work. This is my first attempt at getting a Touch Screen working.

I am using a Teensy 3.2.

Wired it like it says on PJRC's site: https://www.pjrc.com/store/display_ili9341_touch.html

ILI9341 Pin Teensy 3.2
VCC VIN
GND GND
CS 10
RESET +3.3V
D/C 9
SDI (MOSI) 11 (DOUT)
SCK 13 (SCK)
LED VIN Use 100 ohm resistor
SDO (MISO) 12 (DIN)
T_CLK 13 (SCK)
T_CS 8 8
T_DIN 11 (DOUT)
T_DO 12 (DIN)
T_IRQ 2


I am just using "Example" library code to see if I can get it to work. The setRotation value is the only thing I have modified in the example code.


1. The II9341_t3 library sample - "Demo Sauce", it works.
2. If I try the II9341_t3 library sample - "Graphictest", it hangs on "Waiting for Arduino Serial Monitor"
3. From the same library - example "Onoffbutton", displays button but touch doesn't work.
4. XP2046 library I have tried all the examples, they display X and Y values on the scree, but touch doesn't work.

5. The last test I loaded was "touchpaint". I get a screen that says, but touch doesn't work:

X=8192
Y=8191


Basically I can get things to display but I can't get it to recognize "touch".

I am pretty sure I am just not understanding something.

Can somebody help?

 

[pilotplater]

Check your wiring, picture is unclear but you may have mixed up SCK and T_CLK


Edit - oh wait, both of those are connected to 13? aha I thought one would be on 14. Unclear if one is on 14 from the image but doesn't seem so.

 

[tenorjazz]

Sorry the picture isn't that clear, both wires are going to pin 13.

I am fairly certain I have it wired like Paul's example (see first post), I have rechecked it 5-6 times, but if somebody see's a mistake please let me know.

Can anybody confirm what sample code (Library and example) will work with the way Paul has the screen wired on his website. ie https://www.pjrc.com/store/display_ili9341_touch.html

 

[tenorjazz]

Operator Error!! Turns out there are 2 versions of this screen and I bought the Non-Touch version of the screen.