Updated instructions.

Author: nik-markovic

README.md

@@ -4,11 +4,42 @@ This repository contains the IoTConnect Arduino SDK and code samples that make u
 
 ## Supported Boards
 
-The code has been developed and tested With [SparkFun ESP32 Thing](https://www.sparkfun.com/products/13907)
-and [ESP32-S2-Saola-1](https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/hw-reference/esp32s2/user-guide-saola-1-v1.2.html)
+The code has been developed and tested with [SparkFun ESP32 Thing](https://www.sparkfun.com/products/13907)
 
 The SDK depends on the WiFiSecure library and will require a WiFi capable board or a WiFi shield.
 
 The sample provided with the code makes use of the GPIO #2 for LED and #10 for the button example, 
-and is based on ESP32 boards.
+and it requires an ESP32 board with.
 
+## Project Setup
+
+The recommended development environment for this project is PlatformIO, due to improved project structure, 
+ease of use, and code completion features. Arduino IDE is also supported.
+
+### PlatformIO
+
+* Download and extract the PlatformIO package from the Releases page into a directory of your choosing.
+* Download and install Microsoft VSCode for your OS.
+* Open VSCode and in the menu navigate to **View -> Extensions**. 
+* Search for *PlatformIO* and install the **Platform IO IDE** extension.
+* Open the PlatformIO plugin in the left sidebar and navigate to **PIO Home -> Open** on the left side panel.
+* Click the **Open Project** button and navigate to the directory containing platformio.ini, where the project is extracted. 
+* Click the **Open <project name>** button in the dialog.
+* Click **Yes** when asked about trusting the authors.
+* Modify *include/wifi_config.h* and *include/app_config.h* per your WiFi, IoTConnect device, and account credentials.
+* Connect the device, open the PlatformIO extension in the sidebar and click **Genral -> esp32thing -> Upload and Monitor** 
+in order to upload the code to your device and see the device console messages.
+  
+### Arduino IDE
+
+* Download and extract the Arduino ID package from the Releases page into a directory of your choosing.
+* Download and install Arduino IDE for your OS.
+* Open the file explorer and open esp-sensors-demo.ino file in the directory of the extracted package.
+Alternatively, you can open the IDE and open a new sketch.
+* Using the **Sketch -> Include Library** menu item, 
+install the PubSubClient and LibPrintf (using the zip URL) packages as listed in the dep_libs section 
+of the [platfromio.ini](platfromio.ini) file.
+* Modify *wifi_config.h* and *app_config.h* per your WiFi, IoTConnect device, and account credentials.
+* Connect the device, and click the **Upload** button. If the device fails to upload, 
+press the reset button on the board while the upload process is connecting -- while the dots and underscores are printed in the log  
+* Select **Tools -> Serial Monitor** in the menu, in order to see the device console messages.