0. How it works

• The video content will be played on the laptop/desktop, and the output is connected to TV via HDMI.
• The Prismatik software on the laptop/desktop will capture the screen, averaging the edge's pixels colour, and send the command to LED string via serial port.

1. Hardware

Components:

• 5V 3A power adapter (https://www.robotshop.com/ca/en/power-supply-5v-4a.html).
• Arduino Nano (https://www.banggood.com/ATmega328P-Nano-V3-Module-Improved-Version-No-Cable-Development-Board-p-959231.html?rmmds=myorder&cur_warehouse=CN)
• Resistor 220 Ohm
• Led string: RGB, link: https://www.banggood.com/1M-5M-WS2812B-5-Pins-RGBW-RGBWW-4-IN-1-LED-Strip-Light-Non-Waterproof-DC5V-p-1211152.html

Schematic:

• Connect GND of 5V power supply to GND of arduino to keep sync
• Digital output of Arduino -> resistor -> data line of led string

2. Arduino Code

• See arduino_led_tring.ino
• Edit the correct number of led
• Edit the output pin (Default is D3).

3. Software

• Prismatik folk, from: https://github.com/psieg/Lightpack/releases
• Add new device and setup the correct led numbers.

4. References

• Similar guide using FastLed lib, No soldering: https://www.youtube.com/watch?v=-UZq92TpUqQ and https://www.youtube.com/watch?v=juC-3imLoTQ
• Another guide using Raspberry Pi for controling https://www.youtube.com/watch?v=kf2WNVrerck, and https://www.youtube.com/watch?v=-T-BHX3sFqA
• Raspberry 3, no soldering, https://hyperion-project.org/threads/raspberry-pi-3-mediacenter-hyperion-ambilight-no-soldering.77/