I have a custom PCB with an Atmega 32u4 chip. I program the chip with AVRDUDE via ISP after it is has been mounted onto the PCB. All is well.
I now want to add wireless capability via the NRF24L01. The NRF communicates with the 32u4 via ISP. Can I still program the 32u4 on the PCB after the NRF has been mounted or will there be a problem since they are both connected to the ISP pins?