Wi-Fi Homebrew Fermentation Controller Mid Semester Presentation

Team Members

Team Members Marlon Dorsey Electrical Engineering Team Leader Alex Carden Electrical Engineering Sergio Ibarra Electrical Engineering Kevin Lin Electrical Engineering Dr. Randolph Follett Faculty Advisor Jeremy Hamilton Professional Advisor

Overview History Problem Solution Constraints Overview Approach Progress Pending

A Brief History Lesson Beer has been a popular beverage for thousands of years. Egyptians, Germans, and other Middle Eastern groups were leaders in beer brewing. Different styles led to the creation of different types of beer created. Commercialization of beer brewing increased over the past hundred years. Recently, home brewing and craft beer has had a resurgence in popularity.

Problem An issue of the beer process is fermentation due to constant regulation. The fermentation temperature must be controlled properly . It is difficult to hold at a given temperature over length of time. It is difficult to manage or control from home

Solution The Wi-Fi Homebrew Fermentation Controller! Ability to control the fermentation process. Selection of Yeast Profiles (fermentation styles). Operate by web, Android app, or on device itself. Able to see how the brew is doing away from home (or at work). Analyze aspects of fermentation with charts, graphs.

Technical Constraints Name Description Yeast Profiles The Wi-Fi Homebrew Fermentation Controller will allow selection of pre-set yeast profiles from the controller in order to ferment beer at different temperatures and styles Accuracy and Tolerance The Wi-Fi Homebrew Fermentation Controller must be able to read and interpret the current temperature of the brew within 1 degree Fahrenheit and be tolerant to external conditions. Compressor / Heat Delay The Wi-Fi Homebrew Fermentation Controller must operate the heating and cooling system in an effective, efficient manner so it does not damage the heating and/or cooling system. Power Usage The Wi-Fi Homebrew Fermentation Controller must use less than 100 Watts and a system usage less than 1800 Watts to prevent damage to components and equipment. Graphical User Interface The Wi-Fi Homebrew Fermentation Controller must be able to receive input from the user and interpret it either by mobile input or by the device itself.

Practical Constraints Economic/Sustainability Cost of parts must not cost more than 100 dollars. Designed to operate for two weeks continuous. Presumed uninterrupted power. Expected to last at least 10 years excluding normal replacement parts. Must be able to be easily produced.

Practical Constraints Health/Safety End product that controller produces must be sanitary and safe for human consumption. Excessive consumption could be a problem. Controller must be protected. External power cords and cables must be protected, insulated. Able to withstand abrasions and impact.

System Overview/Schematic Controller Web Server Heating Temp Sensors Cooling Relays Raspberry Pi

Subsystems Hardware Circuit controls heating and cooling Raspberry Pi operates relays Pi communicates with web server

Approach The basic approach behind this project is to build a module that can regulate fermentation control through a wireless/network capability.

Microprocessor Arduino Uno Raspberry Pi B Efficient Very powerful Cheaper Would need additional processor for server Raspberry Pi B Very powerful Ability to operate as server and monitor, control data More expensive than Arduino

Temperature Sensor DS18B20+ (Temperature Sensor) Implementing the waterproof version One wire style TMP36 (Microprocessors Temp Sensor) Raspberry Pi doesn't have ADC(Analog to Digital Converter) Cheaper Not waterproof Must use analog system

Heat Source 120 Volt Cooking Element 100 Watt Incandescent Light Bulb Provides ample amount of heat fairly quick. Consumes more power. Larger in size versus light bulb. Cost 10x more than bulb 100 Watt Incandescent Light Bulb Provides adequate heat. Uses only 100 Watts Small in size Very cheap ( 1 to 2 dollars per bulb) Easy to replace.

Internet abilities Use an app that directly links to an URL (created site) The site would allow the login or search of IP Address of individual Raspberry Pi. The router would serve as gateway between Internet and Pi. Hopefully, the use of NAT(Network Address Translation) we could direct internet traffic to the router. Editing the port that is connected to the Pi would keep hackers out of the Pi.

Progress Acquired refrigerator Purchased Raspberry Pi Began setup of website Secured 100 Watt incandescent light bulb Secured temp sensor Began programming

Pending We have ordered the parts that we need for the remainder of the project. We have already tested the temperature sensor and it works. We are in the process of trying to control the compressor of the refrigerator. We have created our site for Raspberry Pi access and we are still running tests for it.

Timeline Research ideas, components, designs. Make item list August September October November December Research ideas, components, designs. Make item list Purchase hardware and components. Begin design, programming assembly Continue programming. Begin testing of prototype. Complete Assembly for presentation Presentation of working prototype. ---

Team Tasks Research and Design Programming Webpage Hardware Design Hardware Assembly Documents Marlon X Alex Sergio Kevin

References [1] Evan Andrews (2014, January 8). Who Invented Beer? [Online]. Available: http://www.history.com/news/ask-history/who-invented-beer [2] Kathy Padden. (2014, April 18). A Brief History of Beer [Online]. Available: http://www.todayifoundout.com/index.php/2014/04/history-beer/ [3] Linda Raley. (1998). Beer History. [Online]. Available: http://www.beerhistory.com/library/holdings/raley_timetable.shtml [4] (June 25, 2015). Marketing and Competitive Analysis of Beer Companies. [Online]. Available: https://ultius.com/ultius-blog/entry/marketing-and-competitive-analysis-of-beer-companies.html [5] Charles Krakoff. (2009, August 27). Beer, Competition, and Emerging Markets. [Online]. Available: http://www.investorsinsight.com/blogs/global_emerging_markets_gems/archive/2009/08/27/beer -competition-and-emerging-markets.aspx [6] (1999). How to Brew by John Palmer. [Online] Available: http://www.howtobrew.com/section1/chapter9-3.html   [7] (1999). How to Brew by John Palmer. [Online] Available: http://www.howtobrew.com/section1/chapter10-5.html