https://devzone.nordicsemi.com/f/nordic-q-a/126154/communication-with-i2c-sensor-on-custom-board-doesn-t-workHello! I am completely new to embedded development and i am becoming quite desperate. I have ordered a custom board which has an nrf52840 chip on it and a vl53l1cxvofy1 ToF sensor. The big plan is simply to read the data from the sensor in a loopen-USTelligent Community 13Tue, 16 Dec 2025 17:57:35 GMThttps://devzone.nordicsemi.com/thread/557134?ContentTypeID=1Tue, 16 Dec 2025 17:57:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c44f9612-6382-4066-b13f-124dd4351025Benjamin<p>Hi,<br />What board are you using?</p> <p>Have you tested any other I2C sensors on this board?</p> <p>Could you do an I2C probe using the I2C shell?</p> <p>Add the following to you configuration:</p> <p><code>CONFIG_I2C=y</code></p> <p><code>CONFIG_SHELL=y</code></p> <p><code>CONFIG_I2C_SHELL=y</code></p> <p>Doing a logic analyzer trace could also be helpful.<br /><br />Regards,<br />Benjamin</p><div style="clear:both;"></div>