https://devzone.nordicsemi.com/f/nordic-q-a/93353/connect-the-gpio-pins-to-the-external-deviceHiii team, I am using the nrf52840 DK I want to connect the slave to the master How to connect a slave with out using a dedicated spi or i2c by using the simple GPIO pins. can i connect or not.en-USTelligent Community 13Fri, 28 Oct 2022 12:43:27 GMThttps://devzone.nordicsemi.com/thread/393028?ContentTypeID=1Fri, 28 Oct 2022 12:43:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4e4ed6b5-b085-4550-8473-b928b4171d47kahlenberg<p>Hi,</p> <p>What do you want to do exactly? What kind of device is your slave (and master)? A sensor or another nRF52840 DK board?</p> <p>Do you want to connect your nRF52840 as slave to another master device?</p><div style="clear:both;"></div>