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Published on Mar 17, 2012
This project uses an Arduino Uno, an ethernet shield, a thermal printer (aka receipt printer) and a Staples easy button to print out the current discount percentages available at the tkts times square booth for Broadway shows.
When the network is ready the light shines yellow. When printing is occurring the green light is lit. The red light is lit up to indicate if there is a network error.
The Arduino parses the text downloaded from the tkts webserver. This server address was discovered using the tkts iPhone app and the great tool mitmproxy.