Hi,
I want to use my Heltec Wifi kit v3 with NRF24L01. Therefore i need the MOSI MISO and SCK Pin of the Board. On the pinout of the Board neither of these are marked. I searched for it but it seems, that everybody uses different pins, or the GPIOs that you should use do not exist.
Can anybody tell me which pins i need to use or, how i define these pins in the arduino IDE.
Thank you
Tim