Description: set characteristic value callback function
addDescriptor()
Description:
setValue()
Description: Set the value of the characteristic vlaue
getValue()
Description: get the value of the characteristic vlaue
notify()
Description: send notification
BLEAdvertising
start() Description: start advertising
10 Using with IFTTT
What is IFTTT?
If This Then That (commonly known as IFTTT, /ɪft/), is a web-based service that allows users to create chains of conditional statements triggered
by changes that occur within other web services. It is both a website and a mobile app of free service with the following slogan: "Put the
Internet to work for you". IFTTT aims to help people use the open API of various websites to monitor the triggers set by users. If triggers are
triggered, actions set by users will be executed. Usually, we can create n applets to meet our various automation needs.