https://devzone.nordicsemi.com/f/nordic-q-a/67400/lp55231-led-driver-example-codeHi! I&#39;m currently working with nrf52840, and I want to drive LEDs using LP55231. Is there any library or example code that I can use?en-USTelligent Community 13Thu, 22 Oct 2020 12:54:31 GMThttps://devzone.nordicsemi.com/thread/276450?ContentTypeID=1Thu, 22 Oct 2020 12:54:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c1fc4323-5f97-422d-8004-a2f6a440879dHeidi<p>Hi!</p> <p></p> <p>No, we do not have an example for this specific device. I also looked around DevZone but the only thing I could find was this 6 year old ticket ( <a href="https://devzone.nordicsemi.com/f/nordic-q-a/2587/twi-issue">https://devzone.nordicsemi.com/f/nordic-q-a/2587/twi-issue</a>) and this 4 year old ticket (<a href="https://devzone.nordicsemi.com/f/nordic-q-a/13852/how-do-i-recover-from-a-failed-i2c-write">https://devzone.nordicsemi.com/f/nordic-q-a/13852/how-do-i-recover-from-a-failed-i2c-write</a>) where&nbsp;both users were trying to connect the LP55231 to an nRF51822.&nbsp;</p> <p></p> <p>It looks like the&nbsp;LP55231 has an I2C-compatible control interface, so that would be your best bet.&nbsp;</p> <p></p> <p>You can use the <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/twi.html?resultof=%22%74%77%69%22%20">TWI peripheral</a> on the nRF52840 which is I2C compatible, and the <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/group__nrfx__twi.html">TWI driver</a> available in nRF5 SDK.</p> <p>Or if you wanted to use NCS we have an <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/reference/peripherals/i2c.html">I2C driver</a> available there.</p> <p></p> <p>Best regards,</p> <p>Heidi</p> <p></p><div style="clear:both;"></div>