I am running out of pins, so I attached a simple relay to pins D11 D12. I need MOSI and MISO for wireless communication (RF24). Somehow the relays don´t really woek anymore. Is MOSI and MISO on both the header and D11, D12?? What can I do to still use them? Can I run the relays from A4-A7?

Can I use MOSI and MISO on the header and repurpos D11 and D12 as digital pins?

pert April 8, 2018, 10:46pm 2

Which Arduino board are you using?

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