Add gesture sensor w/ incomplete gesture list

#18 non-breaking (new api)

README.md

@@ -265,7 +265,7 @@ DI Container Elements
     - [X] Technic Medium Hub - Accelerometer
     - [X] Technic Medium Hub - Gyro Sensor
     - [X] Technic Medium Hub - Tilt Sensor
-    - [ ] Technic Medium Hub - Gesture Sensor
+    - [X] Technic Medium Hub - Gesture Sensor
     - [X] Technic XLarge Motor
     - [X] Technic Large Motor
     - [ ] Technic Angular Motor (depend on availability of hardware / contributions)

examples/SharpBrick.PoweredUp.Examples/ExampleTechnicMediumHubGestSensor.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Threading.Tasks;
+using System.Reactive.Linq;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.DependencyInjection;
+using SharpBrick.PoweredUp;
+
+namespace Example
+{
+    public class ExampleTechnicMediumHubGestSensor : BaseExample
+    {
+        public override async Task ExecuteAsync()
+        {
+            using (var technicMediumHub = Host.FindByType<TechnicMediumHub>())
+            {
+                var device = technicMediumHub.GestureSensor;
+
+                await device.SetupNotificationAsync(0, true, deltaInterval: 0);
+
+                using var _ = device.GestureObservable.Subscribe(x => Log.LogInformation($"Gesture {x}"));
+
+                await Task.Delay(30_000);
+
+                await technicMediumHub.SwitchOffAsync();
+            }
+        }
+    }
+}

examples/SharpBrick.PoweredUp.Examples/Program.cs

@@ -32,7 +32,8 @@ static async Task Main(string[] args)
             //example = new Example.ExampleSetHubProperty();
             //example = new Example.ExampleHubPropertyObserving();
             //example = new Example.ExampleDiscoverByType();
-            example = new Example.ExampleCalibrationSteering();
+            //example = new Example.ExampleCalibrationSteering();
+            example = new Example.ExampleTechnicMediumHubGestSensor();
 
             // NOTE: Examples are programmed object oriented style. Base class implements methods Configure, DiscoverAsync and ExecuteAsync to be overwriten on demand.
             await example.InitHostAndDiscoverAsync(enableTrace);

src/SharpBrick.PoweredUp/Devices/TechnicMediumHubGestSensor.cs

@@ -3,19 +3,30 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Reactive.Linq;
 using SharpBrick.PoweredUp.Protocol;
 using SharpBrick.PoweredUp.Utils;
 
 namespace SharpBrick.PoweredUp
 {
     public class TechnicMediumHubGestSensor : Device, IPoweredUpDevice
     {
+        protected SingleValueMode<sbyte> _gestureMode;
+        public byte ModeIndexGesture { get; protected set; } = 0;
+
+        public Gesture Gesture => (Gesture)_gestureMode.SI;
+        public IObservable<Gesture> GestureObservable => _gestureMode.Observable.Select(x => (Gesture)x.SI);
+
         public TechnicMediumHubGestSensor()
         { }
 
         public TechnicMediumHubGestSensor(IPoweredUpProtocol protocol, byte hubId, byte portId)
             : base(protocol, hubId, portId)
-        { }
+        {
+            _gestureMode = SingleValueMode<sbyte>(ModeIndexGesture);
+
+            ObserveForPropertyChanged(_gestureMode.Observable, nameof(Gesture));
+        }
 
         public IEnumerable<byte[]> GetStaticPortInfoMessages(Version softwareVersion, Version hardwareVersion)
             => @"

src/SharpBrick.PoweredUp/Enums/Gesture.cs

@@ -0,0 +1,12 @@
+namespace SharpBrick.PoweredUp
+{
+    // some are free fall, tap, shake, ??
+    public enum Gesture : int
+    {
+        None = 0, // UNSPECED
+        Tap = 1, // UNSPECED
+        Gesture_2 = 2,
+        Shake = 3, // UNSPECED
+        FreeFall = 4, // UNSPECED
+    }
+}