Add camera.stop() in notebooks that use camera

notebooks/collision_avoidance/data_collection.ipynb

@@ -193,6 +193,22 @@
     "display(widgets.HBox([blocked_count, blocked_button]))"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in the later notebook."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -245,9 +261,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.7"
+   "version": "3.6.9"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }

notebooks/collision_avoidance/live_demo.ipynb

@@ -278,6 +278,22 @@
     "camera_link.link()  # stream to browser (wont run camera)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -289,6 +305,13 @@
     "If your robot wasn't avoiding collisions very well, try to spot where it fails.  The beauty is that we can collect more data for these failure scenarios\n",
     "and the robot should get even better :)"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {

notebooks/collision_avoidance/live_demo_resnet18.ipynb

@@ -276,6 +276,22 @@
     "camera_link.link()  # stream to browser (wont run camera)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},

notebooks/collision_avoidance/live_demo_resnet18_trt.ipynb

@@ -39,7 +39,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import torch\n",
+    "import torchvision\n",
     "from torch2trt import TRTModule\n",
     "\n",
     "model_trt = TRTModule()\n",
@@ -260,6 +260,22 @@
     "camera_link.link()  # stream to browser (wont run camera)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},

notebooks/object_following/live_demo.ipynb

@@ -363,6 +363,22 @@
     "time.sleep(1.0)\n",
     "robot.stop()"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
   }
  ],
  "metadata": {
@@ -381,9 +397,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.7"
+   "version": "3.6.9"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }

notebooks/road_following/data_collection.ipynb

@@ -185,6 +185,22 @@
     "display(data_collection_widget)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},

notebooks/road_following/data_collection_gamepad.ipynb

@@ -253,6 +253,22 @@
     "]))"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -314,9 +330,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.8"
+   "version": "3.6.9"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
-}
+ "nbformat_minor": 4
+}

notebooks/road_following/live_demo.ipynb

@@ -326,6 +326,22 @@
     "robot.stop()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},

notebooks/road_following/live_demo_trt.ipynb

@@ -306,6 +306,22 @@
     "robot.stop()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Again, let's close the camera conneciton properly so that we can use the camera in other notebooks."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},

notebooks/teleoperation/teleoperation.ipynb

@@ -260,6 +260,22 @@
     "display(controller)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Before closeing this notebook and shutdown the Python kernel for the notebook, we want to properly close the camera connection so that we can use the camera in other notebook."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "camera.stop()"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -286,9 +302,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.7"
+   "version": "3.6.9"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }