Faculty Mentor

Dr. Michael Meyer

Document Type

Poster

Department

Engineering

Abstract

Many coffee lovers spend up to $5 on a cup of coffee everyday. To save money one could make them at home, but a quality machine with PIDs start at $1000. Using an embedded system one could spend less than $50 and a few hours implement PIDs into an existing $400 machine that will last a lifetime. microcontroller. Learning C language combined with hardware implementation applied to cheap and simple everyday objects can improve everyday quality of life and save money.

This is challenging because we have to incorporate the additional circuitry into a pre established circuit with limited space, and tie in new code. In addition to the PID controls that are commonly found on high-end espresso machines, Our team decided to implement a touch screen interface, which required programming using a proprietary IDE and language. The resulting product is able to match temperature and pressure consistency levels that are found in competing machines. When we added in programmability of pre-infusion we start to compete with machines in the $5000 range, like the La Marzocco GS3, but we go even further with a touch screen interface, and the ability to plot temperature and pressure over time on the included LCD screen.

Comments

We successfully increased the consistency of brew methods

A pre-infusion routine was added

Touch screen allows for fine adjustments in the temperature and pressure in an easy-to use manner

A smart grinder would be the next step in consistency

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Using an Embedded System for a Quality Cup of Coffee

Many coffee lovers spend up to $5 on a cup of coffee everyday. To save money one could make them at home, but a quality machine with PIDs start at $1000. Using an embedded system one could spend less than $50 and a few hours implement PIDs into an existing $400 machine that will last a lifetime. microcontroller. Learning C language combined with hardware implementation applied to cheap and simple everyday objects can improve everyday quality of life and save money.

This is challenging because we have to incorporate the additional circuitry into a pre established circuit with limited space, and tie in new code. In addition to the PID controls that are commonly found on high-end espresso machines, Our team decided to implement a touch screen interface, which required programming using a proprietary IDE and language. The resulting product is able to match temperature and pressure consistency levels that are found in competing machines. When we added in programmability of pre-infusion we start to compete with machines in the $5000 range, like the La Marzocco GS3, but we go even further with a touch screen interface, and the ability to plot temperature and pressure over time on the included LCD screen.