The Brushless 3 Click Board™ carries the DRV10983, a three-phase sensor-less motor driver with integrated power MOSFETs. When an external power supply is applied, you can drive a brushless DC motor through the PWM pin, AN pin or I2C interface.
It communicates with the target microcontroller over the I2C interface, with the additional functionality provided by the following pins on the mikroBUS line: PWM, AN, INT, RST.d.