coffee - esorensen.com

coffee

A collection of 3 posts

Coffee Roaster Controller Intro

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Coffee Roaster Controller Intro

In this post I will document the build of my air popper controller to roast quality coffee. I am providing enough detail that someone interested should be able to replicate the project. If you are working on building your own and run into any issues please reach out!

User Interface and Firmware

User Interface and Firmware

This page gives a high level overview of the user interface design of the coffee roaster. I discuss the management of responsibilities between the Nextion display and the Arduino controller and summarize the UI elements.

Modifying the Air Popper

Modifying the Air Popper

This page shows the process of modifying a Poppery II popcorn popper so that the motor and heater coils can be operated independently of each other. During the modification a thermistor is added to monitor the temperature of the coils and a thermocouple to monitor the chamber temperature.