How to Install EVShield Library
To install, download a ZIP from github, and unzip it in your arduino/libraries folder.
Resulting in folder similar to: arduino1.6.8/libraries/EVShield
To start with, open IDE and Browse to Menu: File -> Examples -> EVShield -> EVShield_tests -> print_bank_info
and open sketch print_bank_info.ino
Compile and download this sketch to your arduino. Open Serial terminal and see the output of this sketch. (Be sure that EVShield is attached to your Arduino).
As a next step, follow the examples from EVShield_examples folder.
To write your own programs, start with a tutorial here: http://www.mindsensors.com/pdfs/EVShield-Library-Tutorial.pdf
and then refer to online API reference here: http://www.mindsensors.com/reference/EVShield/html/