https://devzone.nordicsemi.com/f/nordic-q-a/125084/configure-i2cI have a quick question about configure i2c. I have the following schematic: And the following configuration for the nrf54l15 : And the following in prj.conf: CONFIG_I2C =y CONFIG_SENSOR =y CONFIG_DHT20 =y Question: Is this the correcten-USTelligent Community 13Tue, 21 Oct 2025 08:33:56 GMThttps://devzone.nordicsemi.com/thread/552031?ContentTypeID=1Tue, 21 Oct 2025 08:33:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:314b19de-cbad-4244-8dd1-a2be02c87256Einar Thorsrud<p>Yes, that should be OK. As this is GPIO port P0, you need to use TWIM30 in that case.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/551938?ContentTypeID=1Mon, 20 Oct 2025 12:21:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dce0e279-009f-459d-998f-19f7123ebee6Boggibill<p>Ok.</p> <p>I see, thanks for the quick response.</p> <p>So if I use P0.02 (SDA) and P0.03 (SCL), I should see better results?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/551932?ContentTypeID=1Mon, 20 Oct 2025 12:07:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c886b851-a6c3-415a-8eb3-22520a1eaf15Einar Thorsrud<p>Hi Pål,</p> <p>There are no TWI instances for GPIP port P2, so you need to pick different GPIO pins. See <a href="https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/twim.html#d1697e783">Configuration</a>. Note that you also need to make sure that SCL is on a <a href="https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/chapters/pin.html#ariaid-title3">clock pin</a>&nbsp;(that is the case with P2.01, but aas mentionned P2 cannot be used).</p> <p>PS: As menionned under <a href="https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/chapters/pin.html#d380e188">Cross power-domain use</a>&nbsp;you can use P2 for TWI when using constant latency mode, but this is not suitable for a low power product.</p> <p>Br,</p> <p>Einar</p><div style="clear:both;"></div>