You can write equations within the Expression Editor using typical operators.
These equations can connect values from device properties, object properties, and variables. Operators can be basic math functions like +, -, *, /, and % (remainder) that make an expression's value a number or string. They can also be logic operators that make the expression’s value a boolean. You'll use logic operators in conditions. These include:
&& and
|| or
== equals
!= does not equal
> greater than
>= greater than or equal to
< less than
<= less than or equal to