How to configure the Fan Cape fan speed ?


a BeagleBone Fan Cape just landed to my desk. The fan is on by default, even if the BB-AI is shut down, and it is quite noisy. There is no documentation inside the box. My questions are:

  1. Is is possible to control the fan speed from the BB ?
  2. Is is possible to read the temperature the Fan Cape from the BB ?
  3. Maybe through I2C ? I see address 57 is active, but what memory locations need I to read/write ?
    I am aware of this page, but form it I can’t make it.