https://devzone.nordicsemi.com/f/nordic-q-a/91975/gpio1-on-custom-boardHi, I am trying with coap_client/server example programs on a custom board. I created a custom board for Zephyr and it is compiled without errors. I have a single button switch on GPIO1-9. So I enabled gpio1 from the board overlay file as follows. en-USTelligent Community 13Thu, 15 Sep 2022 07:20:58 GMThttps://devzone.nordicsemi.com/thread/386291?ContentTypeID=1Thu, 15 Sep 2022 07:20:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6e70f187-365e-499c-b6b5-361d008cbd54kaushalyasat<p>Strange. I verified P1.9 working on a dev board. But now I have issues programming the custom board. I am using the nrf52840 DK and P20 to wire individual lines to the custom board. Will debug further.</p><div style="clear:both;"></div>