Add 'Touch sensor values` tutorial (#421)

* Add 'Touch sensor values` tutorial

* Edits and thumbnail

* Modify activity to no restart motor

docs/tutorials.md

@@ -42,5 +42,11 @@ Step by step guide to coding your @boardname@.
   "cardType": "tutorial",
   "url":"/tutorials/touch-to-run",
   "imageUrl":"/static/tutorials/touch-to-run.png"
+}, {
+  "name": "Using Touch Sensor Values",
+  "description": "Check the value of a Touch sensor and stop a motor if pressed.",
+  "cardType": "tutorial",
+  "url":"/tutorials/touch-sensor-values",
+  "imageUrl":"/static/tutorials/touch-sensor-values.png"
 }]
 ```

docs/tutorials/touch-sensor-values.md

@@ -0,0 +1,92 @@
+# Using Touch Sensor Values
+
+## Introduction @fullscreen
+
+Use the Touch sensor value to stop a running motor.
+
+![Touch sensor and motor attached to brick](/static/tutorials/touch-sensor-values/touch-to-stop.gif)
+
+## Step 1
+
+Open the ``||brick:Brick||`` Toolbox drawer. Drag an ``||brick:on button||`` block onto the Workspace, and place it anywhere on the Workspace.
+
+```block
+brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
+	
+})
+```
+
+## Step 2
+
+Open the ``||motors:Motors||`` Toolbox drawer. Drag out a ``||motors:run||`` block onto the Workspace, and drop it into the ``||brick:on button||`` block.
+
+```block
+brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
+	motors.largeA.run(50)
+})
+```
+
+## Step 3
+
+Open the ``||logic:Logic||`` Toolbox drawer. Drag out an ``||logic:if then||`` block onto the Workspace, and drop it into the ``||loops:forever||`` block.
+
+```block
+forever(function () {
+    if (true) {
+
+    }
+})
+```
+
+## Step 4
+
+Open the ``||sensors:Sensors||`` Toolbox drawer. Drag out a ``||sensors:touch is pressed||`` block onto the Workspace, and drop it in the ``||logic:if then||`` block replacing ``true``.
+
+```block
+forever(function () {
+    if (sensors.touch1.isPressed()) {
+
+    }
+})
+```
+
+## Step 5
+
+Open the ``||music:Music||`` Toolbox drawer.  Drag out a ``||music:play sound effect||`` block onto the Workspace, and drop it under the ``||logic:if then||`` block.
+
+```block
+forever(function () {
+    if (sensors.touch1.isPressed()) {
+        music.playSoundEffect(sounds.animalsCatPurr)
+    }
+})
+```
+
+## Step 6
+
+In the ``||music:play sound effect||`` block, use the drop-down menu to select the ``information touch`` sound effect.
+
+```block
+forever(function () {
+    if (sensors.touch1.isPressed()) {
+        music.playSoundEffect(sounds.informationTouch)
+    }
+})
+```
+
+## Step 7
+
+Open the ``||motors:Motors||`` Toolbox drawer. Drag out a ``||motors:stop||`` block onto the Workspace, and drop it in after the ``||music:play sound effect||`` block.
+
+```block
+forever(function () {
+    if (sensors.touch1.isPressed()) {
+        music.playSoundEffect(sounds.informationTouch)
+        motors.largeA.stop()
+    }
+})
+```
+
+## Step 8
+
+Now, let’s download our program to the brick. Plug your EV3 brick into the computer with the USB cable, and click the blue **Download** button in the bottom left of your screen. Follow the directions to save your program to the brick.  Attach a Large motor to Port A, and a Touch sensor to Port 1 on your brick. Test your program by pressing the ENTER button. When the motor starts, press the touch sensor. Does the motor stop as expected?