How to connect and use an OPEN-SMART 2.2” TFT LCD w/ Touch Screen (ILI9225)

Other Hardware Displays
1

I am trying to find a demo sketch and the correct wiring to connect an OPEN-SMART 2.2” TFT LCD w/ Touch Screen (ILI9225) to an Arduino Uno clone or an Arduino Mega2560 clone. I have searched the web extensively to no avail. I would like to get it working so I could use it on a project I’m trying to make. I am a relative newbie to Arduino so I don’t know enough about C++ to alter some other sketch to make it work with this LCD and I have not been able to find a data sheet on it. If someone could direct me to the correct location for the wiring and sketch I would be most appreciative. By the way, the LCD has 16 pins on one end; they are: GND, 3V3, CS, RS(X-), WR(Y+), RD, RST, LED, DB0 to DB6(X+), DB7(Y-). I don’t know which of these pins to connect to which pins on the Uno or Mega.

When I purchased the LCD I was under the belief that there was multiple instances of using this LCD on the Web and certainly wiring schematics and sketches that I could use. Well, that’s just NOT the case, or I couldn’t find any. Had I known how tough it is to use this LCD I would not have purchased it. So, again, any help would be much appreciated.

Dan

2

Go on. There are several libraries e.g. UTFT and MCUFRIEND_kbv

The most important point is that these displays are 3.3V

Either use Zero, Due, Teensy, STM32, ... which have 3.3V GPIO.
Or just use thirteen level converter channels with a 5V Uno, Mega, ...

Life is much easier if you buy a display that comes on a ready made shield. Plug it in and away you go.

David.

3

You can find all nesessary libraries and examples at official OPEN-SMART google disk here's the link for 2.2" :
OPEN SMART

Its basically plug'n'play... iam using those cheap displays as well with no problems....

Make sure you are runing it under 3.3V as David mentioned before....

4

Hi, I have a tft 2.2 inch WITH RM 68130 DRIVER. I loaded the libraries and all I have is white screen . When I load the touch screen example the screen is still white but , when I touch the screen , the led from the board its start to blink. Have any ideea how to solve this issue? Thanks!