I am attempting to build a sketch on a Nano which receives a regular pulsed signal from an NRF24L01+ board and uses the time-interval between pulses to generate a regular pulsed output generated by an interrupt based timer (TimerOne). Problem is that as soon as I attempt to attach the interrupt callback on TimerOne, the sketch freezes. I suspect some sort of incompatibility between the two libraries. I am attempting to search through the RF24 library for any use of the ATM328P Timer1 functions, but am not finding anything significant. Are there any known incompatibilities between the NRF24L01+ board, RF24 library and the TimerOne library?