I have a arduino nano and a NRF24L01 radio with a pir sensor. I want program this but when I connected to serial port , turn on 3 LED on arduino board (similar to pic) and no found device !!!! 
plz help thank you
I have a arduino nano and a NRF24L01 radio with a pir sensor. I want program this but when I connected to serial port , turn on 3 LED on arduino board (similar to pic) and no found device !!!!
plz help thank you