Improve comments

Sources/BoostBLEKit/IOType.swift

@@ -42,19 +42,19 @@ extension IOType {
         case .piezoSpeaker:
             return nil
         case .rgbLight:
-            return 0
+            return 0 // Not working on Boost and Powered Up
         case .tiltSensor:
-            return 1
+            return 1 // 0: Tilt (x,y), 1: 2D Orientation, 2: Impact Count?? (3 bytes) 3: Tilt (x,y,z)
         case .motionSensor:
-            return 0
+            return 0 // 0: Distance, 1: Count, 2: ?? (6 bytes)
         case .colorAndDistanceSensor:
-            return 8
+            return 8 // 8: Color, Distance, and Ambient Light Level
         case .interactiveMotor:
-            return 2
+            return 2 // 0: ??, 1: Speed, 2: Position
         case .builtInMotor:
-            return 2
+            return 2 // 0: ??, 1: Speed, 2: Position
         case .builtInTiltSensor:
-            return 1
+            return 2 // 0: Tilt (x,y), 1: 2D Orientation, 2: 3D Orientation, 3: Impact Count, 4: Tilt (x,y,z)
         }
     }
 }

Sources/BoostBLEKit/Notification.swift

@@ -53,12 +53,19 @@ extension Notification: CustomStringConvertible {
     public var description: String {
         switch self {
         case .connected(let portId, let ioType):
-            return "Connected \(ioType) into \(portId)"
+            return "Connected \(ioType) into Port \(portId.hexString)"
         case .disconnected(let portId):
-            return "Disconnected an I/O from \(portId)"
+            return "Disconnected an I/O from Port \(portId.hexString)"
         case .sensorValue(let portId, let value):
-            let hex = value.map { String(format: "%02x", $0) }.joined(separator: " ")
-            return "Sensor value \(hex) from \(portId)"
+            let hex = value.map { $0.hexString }.joined(separator: " ")
+            return "Sensor value [\(hex)] from Port \(portId.hexString)"
         }
     }
 }
+
+private extension UInt8 {
+
+    var hexString: String {
+        return String(format: "%02x", self)
+    }
+}