aguaviva / sousvide

A ESP8266 based sous vide (slow cooker) controller.

ESP8266 Sous Vide Controller

Sous-vide (/suːˈviːd/; French for "under vacuum") is a method of cooking in which food is vacuum-sealed in a plastic pouch and then placed in a water bath or steam environment for longer than normal cooking times (usually 1 to 7 hours, up to 48 or more in some cases) at an accurately regulated temperature much lower than normally used for cooking (typically around 55 to 60 °C (131 to 140 °F) for meat, higher for vegetables). The intent is to cook the item evenly, ensuring that the inside is properly cooked without overcooking the outside, and to retain moisture.

Quick Start

You'll need the following hardware:

1. a relay capable to turn on and off a heater element
2. A 1-Wire DS18B20 temperature sensors

On the software side you will need to modify the config.h file to fit your needs.

Compile, upload and connect to it using a browser, and the UI should be self explanatory (or so I hope)

sousvide's Issues

Usage with Thermoelectric Actuator

Hi there,
I've found Your project and I'm thinking of using it with Thermoelectric Actuator, similar to this:

Idea is to specify temperature in room using DS18B20 for measurements and relay to open/close actuator (not for slow cooker of course, but to control temperature in my house 😄 )

Instead of building 4 devices I'd like to use single 4 relay board, 4 DS18B20 and Wemos D1.
Device assembly isn't hard, but I'd like to ask for advice about software part.
I think that I should use 4 instances of MachineState and update UI to allow me to specify desired temperature for each room.
I don't need timing functionality so I will remove it completely.

I'd like to know how should I use PID? If for example I set target temperature to 24 how should I configure it to avoid relay turning on and off.
Actuator is NC (normally closed), so when there is no voltage it is closed, when You turn on voltage in about 2 minutes it is fully opened.

Thanks for advice.