Hi
I have war/problem with screen 4,3". I want to communicate by uart to arduino. Do you knew how make it? What componnets I must add to circiut
Evry schematic was good, example program...
I use arduino mega [few Uarts to use]
Have a nice time.
Best regards
Lukas

 

This should be all you need to add:

RS232 Shield V2 <== Link

 

Thanks a lot of I add max232 (before I have wrong connection ) to convert logic voltage, Now I am drawing a "schematic" to later generations, and add simple program to of backlight.
Now I have some problem with programming my arduino, beacouse to test where connect tx/rx wire I write sending command to screen I send it in loop without any delay (very fast) Do you have idea how fix it programm with another program?
Sorry for my english I am from east Europe.

#% Problem with closed Arduino is fixed. Colse evrything and after this open arduino ide and send to programm empty program

 

Hi Luz, Dick
i know it have a long time of this post.
but, i´m having the same problem with my stone tft.
have read your post, and i have some doubts....

the TFT i have is TTL/CMOS, is needed to have the RS232 converter?
because, TFT and (in this case) my wemos ESP32 is also TTL

hope you can read and remember this issue...

 

Hi Luz, Dick
i know it have a long time of this post.
but, i´m having the same problem with my stone tft.
have read your post, and i have some doubts....

the TFT i have is TTL/CMOS, is needed to have the RS232 converter?
because, TFT and (in this case) my wemos ESP32 is also TTL

hope you can read and remember this issue...

ttl: https://en.wikipedia.org/wiki/Transistor–transistor_logic
rs232: https://en.wikipedia.org/wiki/RS-232

 

STONE LCD and Arduino connection, need to communicate with MAX30100, need MAX3232 level conversion. If you think the level conversion is too cumbersome, you can choose other types of displays from STONE Tech, some of which output uart-ttl signals directly.
The official website has detailed information and introduction: https://www.stoneitech.com/