More structured details to come. Some quick notes:

• Copy the original Arduino .ino file to Platform.io IDE on Atom may cause build issues. Create a new .ino file using PIO IDE and then copy/paste source code from Arduino .ino file to new .ino file.
• The packet size of the MQTT client needed to be increased from 128 to 256. This is in the PubSubClient.h header file located in .pioenvs/nodemcu/PubSubClient_ID89
• The following libraries were added:
  • 19 Adafruit-DHT
  • 89 PubSubClient