I bought a new smart lcd wnich works by rs 232 protocol
But i cannot send commands to it
Iam using Arduino uno plus max232 tranciever
I want to send such command:
AA 40 00 00 02 00 00 00 02 09 FC 33 Cc 3c c3
How to write the code for this to work 
Please help.
What is an RS232 command ?
You can send binary data using Serial.write().
example:
Serial.write(0x45); // send a byte with the value Hex 45
Serial.write(0xAA); // send a byte with the value Hex AA
moslim54:
I bought a new smart lcd which works by rs 232 protocol
Then the very first thing you need to do is to specify the Web page from which you purchased it.
Otherwise we will no more be able to help than you are yourself. 
Paul__B:
Then the very first thing you need to do is to specify the Web page from which you purchased it.Otherwise we will no more be able to help than you are yourself.
Thanks for response.
This from where i bought it.
https://ram-e-shop.com/product/rs232-interface-smart-tft-800x480-5-hkt050ata-c-with-frame/
larryd:
What is an RS232 command ?You can send binary data using Serial.write().
Serial.write() - Arduino Reference
example:
Serial.write(0x45); // send a byte with the value Hex 45Serial.write(0xAA); // send a byte with the value Hex AA
Thanks for response
I already wrote it like this:
Void loop{
Serial.write (0xAA);
Serial.write (0x40);
Serial.write (0x00);
Serial.write (0x02);
...
...
...
...
Serial.write(0xc3);
}
But no responce from lcd
