Vivitek Projector Serial Commands over IP through Raspberry Pi - Help Needed

My SmartThings + Arduino sketch does 433mhz transmission to raise and lower the screen, 12v trigger signal detect to activate the screen if ST is down, and on/off/mode via RS232 for the projector!

Here’s the DTH:

And the Arduino Sketch…

*Dang… Not in the same Repo. Post it later.

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