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 9, 2018, 9:29am 5

pert:
Which Arduino board are you using?

Topic		Replies	Views
Relay question General Electronics	7	2551	May 6, 2021
Relay for Arduino General Electronics	13	5005	May 6, 2021
can i use two digital ports as relay General Guidance	22	1838	May 5, 2021
LED's & Relay Boards General Electronics	7	6221	May 6, 2021
Arduino Micro board General Guidance	6	908	May 5, 2021