This repository is about some simple code, testing the ESP8266 board.
To start, I installed IDE Arduino 1.8.1, then, you only have to follow these steps:
Open preferences and insert http://arduino.esp8266.com/stable/package_esp8266com_index.json in "Additional Board Manager URLs". Then, open Board Managers > Board menu and install esp8266. The least step is select the ESP8266 after the installation in Tools > Board and select the right port in Tools > Port.
If you can't find the Port, it means that you have to find some drivers or you need to give some permitions.
The repository contains the code to exchange information about traffic signals informations.