http://www.pighixxx.com/test/pinouts/boards/nano.pdf Does SPI header pins are separated from D10,D11,D12. Basically, can I use D10-12 pins to control something, and use SPI header pins for communication with other device? If yes how should I properly configure it?

Arduino Nano - SPI header and D* pins

afedorov April 17, 2018, 7:00pm 8

how can I add input pins to nano? Is there a chip?

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