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SUPER TOASTER: The Brown Toast Experience

SUPER TOASTER: The Brown Toast Experience. Wes Brown Computer Electronic Networking Dept. of Technology College of Business & Technology. VIDEO. This video explains the functionality of the device and once more goes over the build process. 2. MOTIVATION FOR IP TOAST.

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SUPER TOASTER: The Brown Toast Experience

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  1. SUPER TOASTER: The Brown Toast Experience Wes Brown Computer Electronic Networking Dept. of Technology • College of Business & Technology

  2. VIDEO • This video explains the functionality of the device and once more goes over the build process. 2

  3. MOTIVATION FOR IP TOAST • Hunger... for knowledge (and toast). • Finding new ways to use Atmel AVR microcontrollers. • Making something incredibly easy pretty difficult – Like a Rube Goldberg machine. • Finding solutions for problems that don't exist. 3

  4. COMPUTER TOASTER? • Making toast is not very difficult, nor is it very computer controlled. • There are no truly computer controlled toasters. • The issue here is how can I enable an otherwise ordinary device over the Internet? 4

  5. THE ISSUE OF “IP” TOAST • How can I control a device from a computer anywhere in the world? • How can I make the process of toasting bread more complicated? 5

  6. PROPOSED SOLUTION • The solution to needing control over devices via Internet is an easy one – Add a web module with Input/Outputs. • Every household device could benefit from a web module. • Smart Appliances – Your fridge reporting what is in it, or being able to tell if your dishwasher is done running. 6

  7. PROPOSED SOLUTION • Taking all of these events and putting them into a web feed you could monitor from your phone. • Complete appliance awareness no matter where you are, 24/7. • No longer worry if you left the stove on, as you can turn it off using the phone! 7

  8. HOW DOES IT WORK? 8

  9. HOW DOES IT WORK? • User selects gradient of toast desired on web page. • Web page sends information to Toaster Control Module (TCM). • TCM sends signals to outputs which rack the bread and start the timing sequence for toasting. 9

  10. PROPOSED SOLUTION • I chose to go with a WIZnet WIZ200WEB module as it comes with an Ethernet module as well as an ATMEGA128 microcontroller. • This allows me web control of I/O on the ATMEGA128. • The ATMEGA128 controls the toaster as well as an LCD to display status and IP information. 10

  11. PARTS • All parts I ordered from • Parts List: EZ1086 Fixed Voltage Regulator 2x 10uf Capacitors 2x NPN BJT Transistors Assorted resistors and wire Toaster Motor WIZ200WEB Power Supply 5V/3.3V Female and Male Headers 20x4 LCD 11

  12. ASSEMBLY • Assembly started on a protoboard. • On the protoboard I laid out lines and headers. 12

  13. SCHEMATICS 13

  14. LAYING OUT HEADERS • Headers allow easy connection of devices • Laying out headers is the first step as it allows you proper spacing of components. 14

  15. WIRING ISP HEADER • The In System Programmer (ISP) header allows you to reprogram the ATMEGA128 when needed. 15

  16. WIRING LCD • Most of the wires used were for controlling the LCD. • I wired it for 8-bit control but ended up just using 4-bit control as it worked for my needs. 16

  17. WIRING TOASTER CONTROLS • Two transistors and one relay controlled the toaster. • A motor was attached to the toaster with a string to pull down the latch. • An electromagnet holds down the lever. 17

  18. WEB PAGE • The web page sends information to the microcontroller. • The microcontroller starts the toaster and times the toasting. 18

  19. FINISHED PRODUCT • Interconnecting circuit board to: • Power and Ethernet • LCD • Toaster 19

  20. TESTING TECHNICAL ISSUES • Along the way I had quite a few build issues. • High power requirements for web module – replaced the voltage division circuit with a voltage regulator. • ISP header was wired up incorrectly – Updated datasheet helped resolve issue. 20

  21. TESTING TECHNICAL ISSUES • I also burnt out the control circuit of the toaster due to grounding problems. • The day before I made the video the back light of the LCD burnt out because of a surge from my programmer. 21

  22. RESULTS • Wonderful computer controlled toast. 22

  23. CONCLUSIONS • Any device you want online reporting for can be setup rather easily and hooked up to the network. • Also it is a lot easier than one would think to enable an otherwise ordinary device to communicate using TCP/IP. 23

  24. CONCLUSIONS • In this project I have pushed the boundaries of what I know, as I am not a circuit designer or a programmer. (The networking part was easy.) • Web enabled modules are incredibly useful in the workplace. 24

  25. FUTURE FEATURES • With this project I would have liked to also do the following: • Automatic loading of toast (this is patented though.) • Scheduling. • Monitoring progress on LCD. • Slider bar on website for toastieness. 25

  26. PRESS • This project was featured on the electronics site www.hackaday.com 26

  27. PRESS • Also featured on www.PCBHeaven.com 27

  28. ACKNOWLEDGEMENTS Taken from WIZnet.co.kr/en Taken from SparkFun.com All other pictures taken from http://tinyurl.com/y65hhnq Also thanks goes out to Bruce Jung for going through my code. 28

  29. ACKNOWLEDGEMENTS • deadhomersociety.files.wordpress.com/2009/10/computer-toaster.jpg • img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/articles/health_tools/flu_foods/getty_rm_photo_of_toast.jpg • engadget.com/media/2008/09/toasterjpeg2.jpg • catchoftheday.com.au/images/pizza_maker/pizza_maker1.jpg • partselect.com/JustForFun/Images/ps_jff_digital_media_refrigerator.jpg • astro.wisc.edu/~townsend/resource/news/rss.jpg • teacherspodcast.org/wordpress/wp-content/uploads/2009/09/twitter-bird.png 29

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