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The Beancounters ! Team 4’s Automated Coffee Roaster

The Beancounters ! Team 4’s Automated Coffee Roaster . Ethan Price, Shicheng Guo , Kyle Haver , Wesley Tso. PSSCs. An ability to achieve different levels of roasting based on user input. An ability to detect the temperature of the beans. An ability to monitor the color of the beans

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The Beancounters ! Team 4’s Automated Coffee Roaster

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  1. The Beancounters!Team 4’s Automated Coffee Roaster Ethan Price, ShichengGuo, Kyle Haver, Wesley Tso

  2. PSSCs • An ability to achieve different levels of roasting based on user input. • An ability to detect the temperature of the beans. • An ability to monitor the color of the beans • An ability to interact with the user via GUI • An ability to shut off the device if unusual conditions (high temperatures, unusual color in roasting area)are detected.

  3. RoHS Compliance • Teledyne AC relay RoHS in transition • Radioshack Transformer is unknown, assuming no • Hacrocam’s camera unsure (other sites say yes) • All other components RoHSCompliant

  4. Manufacture • Solder • Can contain lead, tin, silver, copper • PCB Fabrication • Chemical etching – often uses ferric chloride and other acids • ICs • Manufacture process contains many hazardous chemicals. • LCD Display • Known to use sulfur hexafluoride in manufacturing • Anti-Heat Spray • As a spray paint, contributes to VOC (>>>>5%)

  5. Normal Use • LCD Screen • Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit • Power Consumption • Will be drawing a lot of power while on. • Heating Coils & Fan: ~10.8W • Other parts: > 45 mW

  6. Disposal/Recycling • Unit will need to be recycled • Sites like greenergadgets.org can help people find electronics recycling spots. • Electronic units will be hard to separate from the packaging

  7. Solutions • Manufacturing • Minimize PCB size • Normal Use • Provide operating instructions to ensure a suitable environment is used for roasting • Disposal/Recycling • Provide proper disposal instructions.

  8. Questions?

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