I just got a nRF24L01 and connected one to a Arduino Micro and a Arduino UNO. I followed the instructions here: https://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo and used the RF24 library and used the GettingStarted example from the library. I changed RF24 radio(7,8); to RF24 radio(9,10); (I did that because my CE is connected to pin 9, and CS is connected to pin 10) It works on the Micro perfectly fine, but on the UNO it doesn't work at all. In the Serial Monitor for the UNO it doesn't allow my to change between Transmitting and Receiving. How can I fix this?