kkilic:
This zip file should contain two dirs: "code" (codes) and the "datasheet" (pdf files):
http://www.elecrow.com/download/NRF24L01%20I2C%20Interface.zip
My apologies. I am using a new file manager program and I got mixed up between your ZIP file and another.
Unfortunately the code that the correct file contains is not an example of using the nRF24. And I cannot download the file called http://www.elecrow.com/download/NRF24L01%20Usage.zip
...R