Change the text of the Flowboard module

Projects General Guidance
1

I want to change the text of the flow boards remotely using my own application that is connected to the internet
The flow board module such as p10 16x32 or larger modules are connected to a controller board such as huidu u6a

How can I change the text of these display modules by connecting to the rx, tx of this board or by making a controller board?

Huidu boards such as u6a do this with a protocol that I don't know what it is through their own application, but I want to do the same thing through my own application

2

Unusual waiting 7 hours and no reply.

Reading asnd using this link could change things: How to get the best out of this forum - Projects / General Guidance - Arduino Forum

3

What?!

4

Do you have their application working, so you can look at the file on SD card and determine the data format in relation to the text being displayed? The usual steps in trying to duplicate some unknown is to be sure it is working as advertised.