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Nice! Did not complete my project but my idea was the same, after temperature setup, arduino would activate relays connected to peltier ceramic board with fan to cool and or a mosquito repellent resistence to warm untill reach setup temp. https://www.youtube.com/watch?v=JC8R077wzvI&list=PLUbYM6zOoMN_YCzLbWBD7hxiEU-4zQl9y&index=4&t=0s
You Should Add Black Pepper to increase turmeric absorption, and some coconut oil, since turmeric does not mix well with water. black pepper increases a lot absorption, take a look at golden paste recipes also!
Yogurtino & Yogurtino Jr.View Instructable »