Boiling Sous-Vide Eggs using Clojure’s Transducers
Stian has a great write-up on his blog about how to build a sous-vide cooker powered by the functional programming language Clojure. He wrote the PID controller logic in Clojure and uses it with a temperature sensor connected to an Arduino and a hot water kettle controlled by his home automation system. The system will measure the temperature of the water and precisely control the kettle heater to ensure the water stays at a desired temperature.
I love cooking, especially geeky molecular gastronomy cooking, you know, the type of cooking involving scientific knowledge, -equipment and ingredients like liquid nitrogen and similar. I already have a sous-vide setup, well, two actually (here is one of them: sousvide-o-mator), but I have none that run Clojure. So join me while I attempt to cook up some sous-vide eggs using the new transducers coming in Clojure 1.7. If you don’t know what transducers are about, take a look here before you continue.
To cook sous-vide we need to keep the temperature at a given point over time. For eggs, around 65C is pretty good. To do this we use a PID-controller.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.