what are the purpose/use of the Multiple data meter(1), hall meter(1), phase meter wire(1)?

Joined
Nov 14, 2023
Messages
53
Location
New York City
I've got more than one controller with Multiple data meter(1), hall meter(1), phase meter wire(1) wires- one wire for each label. What's their purpose?
additionally, is there a way to determine the communication protocol of a controller (the generic chinese type)- using a scope, identifying the ICs on the board etc?
 
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