rfid+pc+arduino+servo

i have i rf reader connected to my computer. how can my arduino read the data from my computer without firmata? only database.. :(

USB serial port. The PC can send bytes to the Arduino. The Arduino can send bytes to the PC.

how can i send data from my pc to my arduino? :blush:

kikay: how can i send data from my pc to my arduino? :blush:

You treat the Arduino as a serial port.

Have you chosen the programming language you wish to use on the PC?

gud day every one... does anyone knows on how to connect the rfid read/write module to arduino and have some codes...i sorry... i'm new with this type of device...and also what are the best arduino model to interface with pc...help plaese/....

does anyone knows on how to connect the rfid read/write module to arduino

Probably. And, if you tell us which device you are talking about, we can tell you how to connect it.

and have some codes

Sure, but they may not work with YOUR device.

and also what are the best arduino model to interface with pc

The thin ones.

help plaese

Homework's due soon, and you haven't even started. Right?