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Chris Lee

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Dough133 intelligent heated enclosure for proofing sourdough

Dough133 is an intelligent heated enclosure, with a custom controller board using an ESP32 and Home Assistant integration, for fermenting and proofing sourdough.

Dough133 intelligent heated enclosure for proofing sourdough
 
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Tools, APP Software Used etc.

  • OpenSCAD, a 3D modeling programming language

    Open Source
  • Kicad

  • Platformio

Story

See https://selectiveappeal.org/posts/dough133/

Dough133 is an intelligent heated enclosure for fermenting and proofing sourdough.  It uses a small Coleman cooler as the container for the dough, a PTC heater, a simple temperature/humidity sensor in the cooler to monitor conditions, and my own microcontroller board mounted on the outside of the cooler for control.

It consists of these basic elements:

  • Enclosure: An insulated space for the dough,
  • Heater: Heats the air in the enclosure,
  • Temperature/humidity sensor: Allows the controller to react to the conditions inside the enclosure,
  • User interface: Used for enabling and disabling temperature control, setting the goal temperature, and monitoring the device,
  • Microprocessor board: Implements the user interface and controls the conditions in the enclosure,
  • Power supply: Powers the heater, sensors, and microprocessor board,
  • Safety system: Ensures that problems with the overall system will not lead to overheating.

The C++ firmware, KiCAD design for the PCBA, and OpenSCAD sources for all 3D-printed components are available with the MIT license at GitHub Dough133.

A full writeup and details of the hardware design are disussed at SelectiveAppeal.

Code
  • GitHub Dough133 project

    https://github.com/chl33/Dough133
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Schematic and Layout
  • https://github.com/chl33/Dough133
    View
CAD-Custom parts and enclosures
Topic
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Dough133 intelligent heated enclosure for proofing sourdough

Dough133 is an intelligent heated enclosure, with a custom controller board using an ESP32 and Home Assistant integration, for fermenting and proofing sourdough.

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