Here is a list of all struct and union fields with links to the structures/unions they belong to:

• i2c : heartrate_t
• i2c_address : heartrate_cfg_t
• i2c_speed : heartrate_cfg_t
• int_pin : heartrate_cfg_t, heartrate_t
• scl : heartrate_cfg_t
• sda : heartrate_cfg_t
• slave_address : heartrate_t