I am using the Radiohead library for the nRF24, with the adapter. So I connected the VCC from the adapter to 5V on the Nano. My sketch works fine on an Arduino UNO clown, but on the Nano I get an init fail message. Triple checked the wiring, new wires should be ok, the nRF24 itself is working on the UNO. Power supply is an USB hub, the same that supplies the UNO, so power source should not the problem. The Nano seams to work as other sketches are running fine, code should not be the problem too as it run on the UNO. The only difference in the Arduino IDE is selecting a a Nano (old bootloader) instead of the UNO.
I not a novice in electronics nor in Arduino.
I do not have any ideas whats going wrong.
I appreciate any help
Rainer
If everything is working on the Uno then my suspicion falls on how you are powering the nRF24. The nano may not produce enough current on its 3.3v pin. Try powering the nRF24 from a pair of AA alkaline cells (3v) with the battery GND connected to the Arduino GND.
Also make sure to have a 10µF capacitor across Vcc and GND for the nRF24
As I wrote I supply the nRF24L01 via 5V over the Breakout Adapter with ON-BOARD 3,3V voltage regulater. The same I used and needed with the UNO to work. I asume the 5 V from the USB is directly connected to the 5V pin on the NANO, so I have a similar situation on the NANO as on the UNO regarding power supply of the nRF24.
But I will check.
In my Tutorial there is a connection-test program. It may help to try that with the nano.
...R
check your pin connections properly as they dont follow uno connection if thats ok then there may be a lose connection