Refresh values on a specified interval instead of continuous update
Mi sensor reads temperature / humidity values every second and often readings would change for 0.1 every second e.g. 25.2 <-> 25.1

Current behaviour:
The plugin seems to be scanning Bluetooth continuously and reports value changes back to HomeKit every second or so

This causes automation rules / triggers created for temperature change to fire every second

Additional side effect:
- Bluetooth is continuously locked on the host and cannot be  used for any other application
- Potentially shortened battery life of the sensor

Expected behaviour:
Room temperatures do not require monitoring to a tenth of a degree every second so a reasonable or configurable refresh interval for scanning should be implemented

Raspberry Pi Zero W
Raspbian Stretch
Homebridge 0.4.45
NodeJS 9.90
Noble - 1.9.1