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I thought folks on HN might be interested in something I built and documented on Adafruit's site, it's a probe thermometer (for monitoring what you cook in the oven) that logs temperature data over wifi to Amazon's DynamoDB service. The hardware is based on an Arduino nano (similar to a full size Arduino Uno) and Adafruit's breakout board for the TI CC3000 wifi chip. I made a simple webpage to query DynamoDB directly and visualize the temperature data with a trend line for predicting when food will be at a desired temp.