first commit

Software/CSharp/Samples/GasSensorMQ2/StartupTask.cs

@@ -0,0 +1,41 @@
+using System;
+using Windows.ApplicationModel.Background;
+
+// Add using statements to the GrovePi libraries
+using GrovePi;
+using GrovePi.Sensors;
+
+namespace GasSensorMQ2
+{
+    public sealed class StartupTask : IBackgroundTask
+    {
+        public void Run(IBackgroundTaskInstance taskInstance)
+        {
+            // Connect the Gas Sensor MQ2 to analog port 0
+            IGasSensorMQ2 sensor = DeviceFactory.Build.GasSensorMQ2(Pin.AnalogPin0);
+
+            // Loop endlessly
+            while (true)
+            {
+                try
+                {
+                    // Check the value of the button, turn it into a string.
+                    string sensorvalue = sensor.SensorValue().ToString();
+                    System.Diagnostics.Debug.WriteLine("Gas Sensor value is " + sensorvalue);
+
+                }
+                catch (Exception ex)
+                {
+                    // NOTE: There are frequent exceptions of the following:
+                    // WinRT information: Unexpected number of bytes was transferred. Expected: '. Actual: '.
+                    // This appears to be caused by the rapid frequency of writes to the GPIO
+                    // These are being swallowed here/
+
+                    // If you want to see the exceptions uncomment the following:
+                    // System.Diagnostics.Debug.WriteLine(ex.ToString());
+                }
+            }
+        }
+    }
+}
+