Play Video Games With Your Eyes
If you’ve ever thought your video game skills were so advanced you could beat your friends with your hands tied behind your back, you can now put your money where your mouth is.
In a project that looks like the laboratory lovechild of the EyeWriter or Daito Manabe’s Electric Stimulus drum machine, both of which use facial tracking devices to draw and make music, the Eye Mario System is set up so you can play NES by glancing sideways or up and down.
Waterloo Labs—the group of Texas engineers behind this inventive idea—produce a recurring instructional video series on other adventurous (and potentially dangerous) projects like driving a car with an iPhone, playing a first-person shooter with real guns and making computer-controlled fireworks. The Eye Mario System is the fourth and latest project in the series.
In short, The Eye Mario System uses electrodes to measure the polarity of different parts of the eyes and face. The voltage is separated into positive and negative charges and sent to a daughter card to filter and amplify the data before sending through a custom cable to the NES.
To avoid hazardous electrical shortage, watch the explanation of the analog circuit below. Get started by downloading the design overview and source code here.