
Well, yes, if you’re Lower East Kitchen you do. For the past four months they’ve worked tirelessly on designing a DIY sous vide kit. And now they’ve built the prototype! The device uses an Arduino to control a heating element under the cook pot. The Arduino monitors a temperature sensor and uses a solid state relay to switch up to 10A of current at 120 VAC. The heating element is not included in their kit; just the temp sensing and control brains. As they point out in their blog, this design is flexible enough for any type of temperature control— whether it be a sous vide, smoker, refrigerator, or even a solder reflow oven.
Project details can be found on the Lower East Kitchen web page and on their blog post on QandAbe.com.
Source code is available on the Lower East Kitchen Github page.

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