# My first look into Edge Apps
# Before we start
Author: IoT Open Developer
# Background
IoT Open have introduced a new concept for managing and running applications on the customers edge-gateways that I wanted to try out. The concept is very promising. Apps can be uploaded as executable code to a webpage where users can browse and configure an app. After the configuration the app is pushed to the edge-gateway and started automatically.
I decided to create a basic time-out for a light. It should turn on every time I open a door and turn of again some time later. I want the user to select the activating door, the light to be controlled and for how long it should stay on.
# Prerequisites
- Some basic understanding of programming in LUA-script (opens new window).
- Knowledge about functions in IoT Open
- Understanding of MQTT data
- A gateway with
edgedinstalled