Node identification
Each node has a unique id so user can refer to it during configuration
based on the ratio of two resistors
dip switch
convert 8 switch position into a number from 0 to 256
communicate number to AtMega (one wire bus)
Flash chip has a 4 bytes unique identifier
Each node uses the same code binaries so it need to be configurable
Not sure moteino's have enough memory for that
Increase complexity