can somebody advice on linear sensor ?

So that's [a linear optical sensor[/url. Always nice if you link the data sheet, so we know what it is.

What do you plan to do with 2,000 pixels on a device with just 2kB of RAM?

ED201:
I have seen bunch of schematics but I think those are just ideas, no one had it working directly with arduino.

No surprise, really. Get a Pi or so.](http://www.spectralproducts.com/pdf/TCD1304.pdf)