This project explores a new electronic money system to experience multiple senses such as the sense of sight and hearing. For that experience, the system demonstrates current currency units keeping analogue aspects at the same time. The currency, e100 and the paper receipt have an indicating system with seven spectrum color bars. Each unit of bars produces its own sound, so the combination of units creates mixture of sounds. This system gives us a new communication way to recognize how much we use intuitively through colors and sounds. This multi-sensory system also gives us the opportunity to sense pure data in the public sphere. The project’s title is the shortened combination of the words “electronic” and “one hundred dollars”.
A maintained currency unit is to convey tangibility of real money. I created an indicating system of representing currency units by matching seven colors of the spectrum—red, orange, yellow, green, blue, navy and purple—to apply respective volumes, pitch, and instruments. (Red—one penny—is low and silent; orange—one nickel—was less low and silent; and so on, until purple—ten dollars—is high and loud.) Electronic 100 dollars is composed of 130 units of all currency such as 20 pennies, 5 nickels, 18 dimes, etc. First, on the money card, colorful lines symbolize these units on the card, and whenever a user pays money, the units disappear from the card at random. Also, when people recharge it, the units appear back on the card at random. It always shows same number of each set of unit, and each currency unit (color) is represented equally. Second, for the receipt, when one pays a certain amount of money, the color lines disappear on the receipt at the same location from which they disappeared from the money card. And they hear the electronic sound of the amount used. As well as, there are two holes on the receipts, so users can check how much they used by stacking up several receipts.
