For this project, we wanted to create a simple locking mechanism that worked over the internet. To accomplish this, we set up a switch system to one ESP, then created an Arduino file that read if the switch was on or off, then sent that data to a php file. Then, using another ESP, we created a second Arduino file on another computer that read the data from the php file, and turned a light green or red to show if the mechanism was locked or unlocked.