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

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

Post by andrew » Thu Jan 20, 2022 11:21 am

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.
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ChrisSharp
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Joined: Thu Dec 31, 2020 1:22 pm

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

Post by ChrisSharp » Fri Jan 21, 2022 12:44 pm

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

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

Post by andrew » Fri Jan 21, 2022 3:49 pm

Yeah sorry I think that was a case of bad timing. We can always arrange a return if you don’t want it.
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ChrisSharp
Posts: 27
Joined: Thu Dec 31, 2020 1:22 pm

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

Post by ChrisSharp » Tue Jan 25, 2022 2:19 pm

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

Post by andrew » Tue Jan 25, 2022 3:12 pm

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.
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