Arduino Controlling LEGO Power Functions Motor Part 2: IR Remote Control - YouTube
BrickLink - Part 58123bc01 : LEGO Electric Power Functions Receiver Unit with Dark Bluish Gray Bottom and Black V2 Print (Version 2) [Electric] - BrickLink Reference Catalog
Technic IR Remote With Receiver Compatible with Lego Power Functions 8879 8884 673419243902 | eBay