You simply sum the power (or current) requirements for everything to determine the total.
If the current consumption isn't given (I can't find data on the KY-037) then you'll have to measure it if you want to know.
You simply sum the power (or current) requirements for everything to determine the total.
If the current consumption isn't given (I can't find data on the KY-037) then you'll have to measure it if you want to know.