mrshell

I have the STVA070WT-01 model https://www.stoneitech.com I am testing with an arduino leonardo, or uno. I also have a max3232 rs232 serial to ttl adapter to connect the display to the arduino. Also have not looked up what pins to connect this to yet if anyone knows. I want to know how to send a variable to the screen to display it. can have some one to help me getting this stone hmi screen running?