https://devzone.nordicsemi.com/f/nordic-q-a/124910/i2c-pulls-down-the-gpio-levelWe currently have a self-developed development board with NRF5340. The example program uses Bluetooth transparent transmission. Now I have added a GPIO pin: en_power is set to high level, and the actual measurement shows it is high. However, after I addeden-USTelligent Community 13Mon, 13 Oct 2025 09:40:13 GMThttps://devzone.nordicsemi.com/thread/551243?ContentTypeID=1Mon, 13 Oct 2025 09:40:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a84fb490-a9a1-437b-9bd9-afac540f966fKenneth<p>Hi,</p> <p>Try to check out:&nbsp;<a href="https://academy.nordicsemi.com/courses/nrf-connect-sdk-fundamentals/lessons/lesson-6-serial-com-i2c/">https://academy.nordicsemi.com/courses/nrf-connect-sdk-fundamentals/lessons/lesson-6-serial-com-i2c/</a></p> <p>Kenneth</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/551180?ContentTypeID=1Sat, 11 Oct 2025 07:08:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fdd20a36-a54b-4f98-ad05-940b052e65ebTurbo J<p>Look at the DT files in text form, both for the overlay and the finished DT files in build/zephyr. We cannot tell which pin is en_power supposed to be or if its assigned to another hardware function.</p><div style="clear:both;"></div>