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resources/01_prof_dev/IoT IDE Configuration.md

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+# Configuring The IoT Editor
+
+Install [Visual Studio Code](https://code.visualstudio.com) and then install the [PlatformIO](https://platformio.org) plugin. This can take some time!
+
+Once installed you will need to restart VS Code. After restarting you will see the **PlatformIO Home** icon in the blue **Status Bar**. If the bar is not visible you can fix this using the _View > Show Status Bar_ menu. Clicking on this brings up the **PIO Home** screen and displays the **PlatformIO Toolbar** at the bottom of the IDE. This contains a number of important buttons:
+
+![PlatformIO Toolbar](../.images/platformio_toolbar.png)
+
+1. Home
+2. Build
+3. Upload
+4. Upload to remote device
+5. Clean
+6. Test
+7. Run task
+8. Serial monitor
+
+Locate the **New Project** button on the **PIO Home** screen and click it to launch the wizard.
+
+![The PlatformIO Wizard](../.images/platformio_wizard.png)
+
+You should give your project a title (Blink). For the board use the dropdown list to select the **NodeMCU 1.0 (ESP-12E Module)** and make sure the **Arduino** framework is selected. There is a default location for the project files but if you uncheck the **Location** checkbox you can choose where to save the project.
+
+If you open the explorer tab in VSCode (the first icon down the left of the editor) you can see that PlatformIO has created a series of directories and files:
+
+```
+.
+├── lib
+│   └── readme.txt
+├── platformio.ini
+└── src
+    └── main.cpp
+```
+
+The project files should be saved in the `src/` directory and any project-specific libraries need to be in separate directories in the `lib/` directory.
+
+Open the `src/main.cpp` file and replace its contents with the following:
+
+``cpp
+#include "Arduino.h"
+
+#define LED_BUILTIN 2
+
+void setup() {
+  // initialize LED digital pin as an output.
+  pinMode(LED_BUILTIN, OUTPUT);
+}
+
+void loop() {
+  digitalWrite(LED_BUILTIN, HIGH);
+  delay(1000);
+  digitalWrite(LED_BUILTIN, LOW);
+  delay(1000);
+}
+``
+
+Plug in your ESP8266, click on the **Build** button. Once the code is compiled and linked click on the **Upload** button to upload the hex file to the microcontroller. This should result in the onboard LED flashing on and off.
+
+## 2 Unit Testing