https://devzone.nordicsemi.com/f/nordic-q-a/61824/gpio-not-groundI am using an nRF52 dev kit. I have loaded the pca_app_hts_pca10040_s132 example into the board. I only added these lines of code nrf_gpio_cfg_output(ARDUINO_9_PIN); nrf_gpio_cfg_output(ARDUINO_10_PIN); nrf_gpio_cfg_output(ARDUINO_11_PIN); nrf_gpio_pin_clearen-USTelligent Community 13Wed, 27 May 2020 18:47:36 GMThttps://devzone.nordicsemi.com/thread/252045?ContentTypeID=1Wed, 27 May 2020 18:47:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c2ad03a5-7437-46b9-9eae-dcd6daf99eb8WesC<p>Thanks.&nbsp; I knew i was missing something simple.&nbsp; Even though l looked at the DK schematic, i clearly missed it.&nbsp; thanks again</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/251881?ContentTypeID=1Wed, 27 May 2020 09:46:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e6c0d6bb-7bf2-41cf-8e72-ed418576c977Vidar Berg<p>Hello,</p> <p>You will measure a voltage drop on the pad when setting this output pin low because it is connected to LED 4 (ARDUINO_9_PIN == P0.20). The silkscreen print on the backside of the DK shows the LED circuit.</p><div style="clear:both;"></div>