readAttributeDcVoltageMax(completion:)
Declaration
func readAttributeDcVoltageMax(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeDcVoltageMax() async throws -> NSNumberfunc readAttributeDcVoltageMax(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeDcVoltageMax() async throws -> NSNumber