Addressable LED's have become a very popular technology to use in a variety of platforms. Specially in entertainment environments such as theatre, music and dance performances. But the market today offers two main ways of controlling them. You either get a non-reliable and limited remote control, or you need to be programming expert and a computer to actually get exactly what you want. The ‘LED Custom Controller’ is right in the middle of these extremes. With a small and rather cheap interface anybody can design and control LED for a live performance, spaces or instances. This controller is also a simple and reachable way to teach how this specific technology works and get started with intelligent light.