TFT LCD 3.95

Other Hardware Displays
1

Hello guys, I bought this LCD TFT display with Arduino mega 2560
http://www.aliexpress.com/snapshot/7199616436.html?orderId=71783015714013
and I tried UTFT library but without any success the seller's description says that the lcd controller is R61581 and when I wrote this number in the constructor |UTFT myGLCD(R61581 ,38,39,40,41); "

I really don't understand why the text is reversed please if someone know how to fix it let help me.

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2

As a general rule, Aliexpress is a lot more truthful than Ebay.

However your link has several anomalies.

  1. 3.95" diagonal screens are likely to be 480x320. i.e. 4:3
  2. the red pcb says ILI9488
  3. A R61581 can control a 480x320 screen.

Of course, it is quite possible that you have a 400x270 screen. Or even a 400x240 screen.
Only you have a ruler or tape measure.

My 3.95" display is 102mm diagonal. 87mm x 55mm (480x320)
My 3.6" display is 93mm diagonal. 79mm x 48mm (400x240)
My 3.5" display is 89mm. 76mm x 48mm (480x320)

Unfortunately, this style of shield is "unreadable". Otherwise, I could just read the ID of the hardware controller chip.

David.

3

Please measure your screen. The active area that looks black when off or white when on.

David.