This week, the clock design has been agreed upon. The design will consist of a piece of PDLCD with numbers etched into it. The clock will be made to display numbers as needed with an electric current.
The PDLCD will consist of three main elements. The ITO coated glass from KINTEC costs approximately $10 for a sheet of 4 in x 6 in [2]. The polymer will be Norland Optical Adhesive 65, which will cost about $17 for 10 grams [4]. The liquid crystal that will be used is Merck nematic LC mixture BL-E7. The price could not be found.
The controller that will be used will be an Arduino Uno R3, which will cost approximately $30, with an expected cost breakdown of $10 per person [3].
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