Sending Unity screen to Arduino

I need to be able to send my camera feed from Unity to an Arduino. I have established a usable serial connection between the two but I can only transmit txt arrays back and forth.
My attempt was to encode the screen as jpg and send it over as a byte array which is successful but a jpg is too big for the Arduino to decode. I want to send a Bitmap byte array but Unity no longer supports a decent way for me to do that.

So I need somewhere to start on either being able to send the Unity feed to Arduino or a way to convert a jpg(or png) to bit map and send that.

 

Hi
about a question you posted on answer unity with the title:
"Set image as material"
I can solve this problem for you.
send me an email if you want I do it for you.
krpano.developer@gmail.com

Thanks