Automated currency reader

Spring 2008

Gregory Collins
Philip Koopman
Project description

In this project, I plan to develop a prototype that will be able to indentify currency for the visually impaired. In order to do this, I will use a smart UV sensor that will interface with a MC9S12C32 microcontroller. The UV sensor will be able to distinguish differences between paper bills by the different dyes used to prevent counterfeiting. After reading in data from the sensor, our microcontroller will output a response distinguishing between the different types of bills. My plan is to develop code for the microcontroller using an HCS12 project board as a development tool. Once the microcontroller is able to reliably distinguish between different types of currency, I then plan to try to develop a more portable, low-cost solution (I plan for this solution to also use the same microcontroller without the project board.) I anticipate completing all of the required functionality for the board by the end of the first half of the semester, leaving me the second half of the semester to develop a more usable solution. My hope is that by the end of the semester, I will have a working, portable currency reader that can distinguish between different denominations of U.S. currency.

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