Use Calculated Properties to decode compactly-represented data for easier use
Devices which have very constrained networking may encode multiple properties into bitfields of a single property to save data. For example, a device might send a status byte where bit0 is 1 if there's an error, bits 1..3 indicate a packet count etc.
With CPs you can use maths and bitwise operators to select and extract those fields into separate properties again:
status & 1
status & 1 ? "bit zero is set" : "bit zero is clear"
(status / 4) % 16
(Dividing by 4 shifts-off the bottom two bits, then modulo 16 selects the next 4 bits)