using wireless with arduino

Projects General Guidance
1

I am not sure how to hookup a USB serial to arduino....or what I need.

2

This is one of the cheapest RF modules out there:

The sparkfun page has a link to a programming guide.

3

florinc:
This is one of the cheapest RF modules out there:
RFM12B-S2 Wireless Transceiver - 434MHz - WRL-09582 - SparkFun Electronics
The sparkfun page has a link to a programming guide.

In addition, I would reccomend an ATtiny in conjunction with these transceivers. That's the cheapest method I'm found so far for low cost two way communication.

4

I am not sure how to hook these up to a small arduino like arduino nano or arduino mini...I am guessing I put one of these RF transeivers on the arduino connected to my laptop as well...Once I do this will it be okay if I have 5-10 small arduinos sending POT data to the laptop arduino?