Once the LED strip has been soldered together and attached behind the monitor, the next step is to configure the software on the PC. The communication protocol for Adalight is quite simple, which means there is a variety of PC software that can send color information to the Arduino. There are other options, but the two I’ll cover are Processing and Prismatik.
The first step in taking the Arduino-based ‘ambilight’ from concept to completion is to modify the LED strip so it fits nicely around the monitor. Like most addressable LEDs, the 5m roll I’m using has cut lines where you can trim it. Because each pixel is its own self-contained circuit, you can arrange them in any shape or number you can think of so long as you connect the three wires: power, ground, and data.