2.4" TFT adapter board / shield for Arduino (HCARDU0084)

andrew
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Re: 2.4" TFT adapter board / shield for Arduino (HCARDU0084)

Post by andrew » Sat Mar 14, 2015 11:39 am

Yeah its in the list! We also plan to stock the larger display too.
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Quiggers
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Re: 2.4" TFT adapter board / shield for Arduino (HCARDU0084)

Post by Quiggers » Fri May 29, 2015 8:22 am

Is there a quick bit of demo code for this on a leonardo?

I've tried the elec freaks and UTFT examples without any joy.

UTFT examples are too large for the leonardo, even the one labelled leonardo 240x320 demo. :o

andrew
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Re: 2.4" TFT adapter board / shield for Arduino (HCARDU0084)

Post by andrew » Fri May 29, 2015 3:03 pm

The UTFT library is currently the only one we know that works well with the display. It is a powerful library but the downside to it is that it is very resource intensive as it is designed to work with may types of controllers and displays. That said the library does have a configuration file called memorysaver.h in its library folder that allows you to comment out code for display controllers you don't need. Have you tried editing this file to free up memory?
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Quiggers
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Joined: Thu Jun 26, 2014 12:28 pm

Re: 2.4" TFT adapter board / shield for Arduino (HCARDU0084)

Post by Quiggers » Sat May 30, 2015 10:11 pm

I had to dig around the UTFT library to set the screen's river chipand remove the print string commands to get the code size down.

All good now. Thank you for getting back to me.

whobbes
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Re: 2.4" TFT adapter board / shield for Arduino (HCARDU0084)

Post by whobbes » Fri Mar 25, 2016 12:00 pm

Hi there,

I have received a V2.1 screen and screen display works great with my Arduino.
Now, I am trying to use the SD card but initialisation fails all the time.
Is this due to the IC1 not been included?

Thanks,
W.

andrew
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Re: 2.4" TFT adapter board / shield for Arduino (HCARDU0084)

Post by andrew » Sat Mar 26, 2016 9:34 am

I am trying to use the SD card but initialisation fails all the time.
The SD card interface should work fine assuming you are using it with an Uno?
Is this due to the IC1 not been included?
None of the ICs on this adapter board are labeled, would you by any chance be referring to the actual TFT screen and not the adapter board?

Also can you confirm what Arduino you are using it with?
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nocturnalprogrammer
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Location: Nottingham, England

Re: 2.4" TFT adapter board / shield for Arduino (HCARDU0084)

Post by nocturnalprogrammer » Tue Apr 12, 2016 8:20 am

Hi, I'm trying to use the 2.4" TFT 0083 and Uno adapter shield 0084 with a Mega. I've written a sketch to plot a graph of amplitude against frequency (for a scalar network analyser) but now I need extra outputs and inputs to drive the digital oscillator and read an analogue voltage.

I've read danuggster's posts and the replies but need some help in understanding them.

I've uncommented this line as described; #define USE_UNO_SHIELD_ON_MEGA 1 - so far, so good.

Then dannuggster wrote "Next I had to make a slight change to the Solution file for the example I was using." What is the Solution file?

Also "Lastly I had to redefine DCS_DIO and DOUT_DIO..."

Do these two items refer only to the #define lines in the example code that follows in danuggster's post?

These include

#define DCLK_DIO 55// Was 15
#define DIN_DIO 54 // Was 14

but what are 54 and 55? The digital pins on my Mega go up to 53.

Sorry if I appear thick, but I need to be led by the hand if I'm going to make this work.

Thanks in anticipation,

John

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