Guaranteed Wake is Undocumented

[riggsd]

The firmware contains a feature called "guaranteed wake", but this is not documented in the User Manual and there is no mention of it in the Witty software.

#define I2C_CONF_GUARANTEED_WAKE    49  // 8 bits for guarenteed wake configuration.
                                        //   bit-0~6: guaranteed wake duration (0~127)
                                        //   bit-7: guaranteed wake duration unit (0=hour, 1=day)