https://devzone.nordicsemi.com/f/nordic-q-a/128371/nrf52dk-cannot-find-max30101-breakout-board-over-i2cHi, I am using the heart rate sample. I have connected ground to ground, 3.3v to vdd, SDA to pin 26 and SCL to pin 27. I have 4.7k pullup resistors on SDA and SCL. When I run i2c scan i2c0 i get: 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- en-USTelligent Community 13Tue, 14 Nov 2017 10:43:53 GMT