Connecting STEVAL-MKI197V1 (3.3V board) with Nano

Other Hardware Science and Measurement
7

If the resistors are not there, I2C communication just won't work. Nothing bad will happen.
Try to read the I2C address with an I2C scanner sketch.
If no response, then add the two 10k pull up resistors to 3.3volt VDD, and try again.
Leo..