How to connect two devices to the same pins?

  • Hi all!

    So today I received my Arduino toys from China, together with two Arduino Nanos, two NRF24L01 and an ethernet shield.

    Soooo, I've run into a (small) problem. Excuse the silly question, but how do I connect two devices to the same PINs on the Arduino?
    Specifically, I want to follow this instruction:
    My Arduino has two GND and one 5V and one 3.3V output PIN, so that's no problem -- but how do I connect pins 11, 12, and 13 (MOSI, MISO, SCK) to both the ethernet shield and the radio at the same time?

    Is a breadboard neccessary for this?

    Many thanks for your help, it's greatly appreciated!

  • Admin

    If you don't want to solder breadboard is probably the cleanest solution.

    In times of desperation it has happened that I have squeezed in a male pin into the back of another.. but nothing I can recommend.


  • Thank you very much! I've ordered a breadboard and will try to get it running when I received it 🙂