3.2" TFT Shield with resistive touch (HCARDU0109 & HCARDU0111)

[andrew]

Not for this display I'm afraid as it uses a buffered parallel connection. The non-shield version uses an SPI interface if that is of any use:

viewtopic.php?f=75&t=2843

Although note that the touch screen on this display requires a separate interface.

[ChrisSharp]

I should have waited for this reply before I bought one. Hey-ho.

[andrew]

Yeah sorry I think that was a case of bad timing. We can always arrange a return if you don’t want it.

[ChrisSharp]

No problem,

Before I start the struggle. Another basic question. Are the TX and RX pins available. I'd like to use a MAX485 transfer module with this.

Cheers

[andrew]

Another basic question. Are the TX and RX pins available

I assume on the Arduino? If so then yes, according to the schematic the Tx and Rx pins (and digital pin 2) on the shield aren't connected to anything.

You will have to find some way of getting access to the Arduinos header though as the shield physically blocks access to it.

[Obrad21]

Hello, i am new to display and i have recently gotten myself an open-smart ili9327 3.2 inch display and my wish is to use it with lvgl to create a keyboard. The problem is when i connect it all and calibrate the display only one corner of the display works as touchscreen as a scaled down version. I draw in the middle of that area and it shows me im drawing on the middle of the display. Every other part except that corner is unresponsive. Could it be a wiring problem since i tried adafruits touch test ans every part worked.