There have been all kinds of wacky Game Boy and Game Boy Color uses over the years. The Game Boy has been used for sewing machines, fishing sonar, and so much more, and now we can add air conditioning controller to the list.
Singapore-based developer JinGen Lim received a Game Boy Color as a gift, and he was quite intrigued by the portable's infrared port. Lim started thinking of ways he could put this to use, which lead him to cooking up something for his air conditioning unit.
Lim found out that Mission Impossible on the Game Boy Color could both record and replay infrared signals, which is exactly what he needed to interact with the infrared port on his AC unit. After a bit of fancy programming and rewiring, the end result is a Game Boy Color that can control an air conditioner. Check out the mod in action below.
If you'd like a much more detailed breakdown of his this project came to be, you can check out Lim's dev blog here.