1. Wi-Fi Homebrew Fermentation Controller
Mid Semester Presentation

2. Team Members

3. 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

4. Overview History Problem Solution Constraints Overview Approach
Progress
Pending

5. 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.

6. 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

7. 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.

8. 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.

9. 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.

10. 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.

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

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

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

14. 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

15. 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

16. 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.

17. 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.

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

19. 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.

20. 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.
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21. Team Tasks Research and Design Programming Webpage Hardware Design
Hardware Assembly
Documents
Marlon X
Alex
Sergio
Kevin

22. References
[1] Evan Andrews (2014, January 8). Who Invented Beer? [Online]. Available:
[2] Kathy Padden. (2014, April 18). A Brief History of Beer [Online]. Available:
[3] Linda Raley. (1998). Beer History. [Online]. Available:
[4] (June 25, 2015). Marketing and Competitive Analysis of Beer Companies. [Online]. Available:
[5] Charles Krakoff. (2009, August 27). Beer, Competition, and Emerging Markets. [Online]. Available: -competition-and-emerging-markets.aspx
[6] (1999). How to Brew by John Palmer. [Online] Available:
[7] (1999). How to Brew by John Palmer. [Online] Available: