ESP8266 serial WiFi driver source code: https://github.com/Dweaver309/nanoFramework.serial.wifi.esp8266
Wiring diagram to use Netduino 3 with ESP8266 Serial WIFI Witty ESP-12F.
Refence: https://www.hackster.io/dweaver309/esp8266-serial-wifi-driver-for-nanoframework-e14d29
Contributor: David E Weaver