https://devzone.nordicsemi.com/f/nordic-q-a/127622/custom-pcb-p0-07-and-p0-08-buttons-not-responding-zephyr-nrf-connect-sdkHi, I have a custom nRF52832 PCB with 10 buttons connected to various GPIOs. All buttons work correctly except the two connected to P0.07 and P0.08 they produce no response at all. Setup: - Custom PCB, nRF52832 - nRF Connect SDK + Zephyr - Buttonsen-USTelligent Community 13Tue, 31 Mar 2026 18:13:44 GMThttps://devzone.nordicsemi.com/thread/564329?ContentTypeID=1Tue, 31 Mar 2026 18:13:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:393dc7c3-0a9c-42c6-8085-8706c75d93eeSwRa<p>Hi Sejid,</p> <p><span>P0.07 and P0.08 on the nRF52832 are standard general-purpose digital I/O pins with no special hardware restrictions. On the nRF52-DK, the pins&nbsp;P0.05, P0.06, P0.07, and P0.08 are&nbsp;by default used by the UART connected to the interface MCU. Please check your DTS files (refer zephyr.dts) to verify if these pins are assigned to anything. If it is connected to UART0, then disabling UART0 in devicetree.</span></p> <p><span>Regards,</span></p> <p><span>Swathy</span></p><div style="clear:both;"></div>