7" inch TFT LCD with Arduino Mega TFT LCD shield

Other Hardware Displays
1

Hello guys :),

I recently bought my first Arduino (MEGA 2560) together with:

I was trying to run example code UTFT_DEMO_800x480 from imported library UTFT.

In this part of code:

// Remember to change the model parameter to suit your display module!
UTFT myGLCD(ITDB50,38,39,40,41);

I tried to change it to all these following controllers:

UTFT myGLCD(SSD1936_800,38,39,40,41);

UTFT myGLCD(SSD1936_800ALT,38,39,40,41);

UTFT myGLCD(TFT01_70,38,39,40,41);

UTFT myGLCD(EHOUSE70,38,39,40,41);

,but all without success my screen is just white, some times with some vertical lines.

My second problem is that, my PC dont detect Arduino when i have connected Display on it, I have to remove display every time I want to uploud code to Arduino.

Thanks you for all answers :slight_smile:

2

Hi Kenny,

Look at the backside of your display and add the mA's.

This display consumes quite some power!

It might work on a USB3 connector, but I would add an external power supply.

Jean-Marc

3

On Display back is written:

  • 3.3V - Drive IC Power (I=200mA)
  • 5V - Backlight Power (I=500mA)

I was thinking about MA too, so I have connected to Arduino USB3 togather with external power supply that have output 5V, 2.1A. But it did not help.. :frowning:

4

And you still have the download problem with this supply configuration?

5

Unfortunately, yes.., if you mean that my PC does not detect Arduiono (when display is connected)

6

Strange, no idea why. I propose you measure voltages on the display pins: VCC and BL supply.

I have seen this shield with wrongly configured solder jumpers.

7

I will try :slight_smile:

Can be this related to not displaying anything from source code? :slight_smile:

8

Not afaik.

9

I just discovered that I have the MEGA shield with a modification:

pin 2 ? (opposite 22 on shield) of the display connected to the 5V pin from Arduino.

I think I needed the external PS only for the Waveshare 7".

This was most likely for this display. But I used it also with a Due and Due shield patched for read.
I don't remember the details, it was 9 months ago, and I used it with STM32 BluePill afterwards.

Jean-Marc

10

I am also having same issue, please help me out

11

Please provide accurate links, accurate constructors.
Please compare the item(s) on your desk with the photos in your links.

If they are not accurate, SAY SO.
Post your own photos.

KennyJG made no effort to SPELL correctly. So I would not expect anything to work.

David.