WTM Sense

Overview

Design and construct a docking station for an iPhone 6, that includes the following features

• • Speaker that amplifies the sound from the phone
  • Display that shows weather and time
  • Motion sensors that use specific hand patterns and motions to turn the speaker on and off, change the volume, and play/pause songs

For our demo, the user can plug their phone into the dock (if they have an iPhone 6) or use a provided iPhone 6, to test out our speaker. They can use the speaker to play a song, look at the time or weather, and most importantly use their hand as a simple tool to adjust and see each of these features.

Objectives

Throughout our Systems Science and Engineering curriculum, our group realized we have had little experience with modeling and 3D printing. For this reason, we decided to take this class and spend the semester learning and constructing a design and model to be printed using a 3D printer. We brainstormed on the first week different products we would like to own and use in our daily lives that would be interesting and rigorously challenging to create. We decided on the 'Just inCase' designs since we have all come across the problem before where we're trying to play a video or song from our phones, but the volume is not loud enough for everyone listening to hear. We came up with the idea of creating 2 designs, a case for our phones that also doubles as a portable speaker and a larger speaker dock.

Team Members

• Audrey Freeman, Sophomore, Bachelors of Science in Systems Science and Engineering, Minor Candidate in Operation Supply Chain Management
• Savannah Johnson, Senior, Bachelors of Science in Systems Science and Engineering
• Ariel Stern, Senior, Bachelors of Science in Systems Science and Engineering, Minor Candidate in Operation Supply Chain Management
• TA: Andrew O'Sullivan

Challenges

• User safety: The wires and jumper cables were using to connect the phone to the speaker cannot shock the user
• Phone safety: We can't send too strong of a current through the Aux cord and 'fry' the user's phone
• Privacy Considerations: The speaker cannot be too loud, in order to be considerate of others
• Learning arduino and how to code a display
• Learn how to use Fusion360 (Autodesk) and how to design a functional model to be 3D printed
• Figure out how to amplify sound from the headphone jack using an Aux cord and build a simple circuit connecting it to a speaker

Gantt Chart

File:Gantt just incase.png

Budget

• 4-pack duracell 9V batteries $5.95 + $0.00 shipping TAKE OUT IF WE WANT TO PLUG INTO WALL
• Fusion360 Autodesk Program $0.00
• 3.5mm 4 Conductor Plug - Solderless w/ Screw Teminals $6.52
• Raspberry Pi $0.00 (Provided by Washington University)
• Leap Motion Controller $79.99 +$0.00 shipping
• Mini Hobby Speaker 2" 4 Ohms $5.95 + $0.00 shipping
• 2.25 speaker 8 Ohms $3.99 + $4.44 shipping
• 16X2 Olivine Backlight LCD Display for Raspberry Pi $7.99 + $0.00 shipping
• Microphone Sound Sensor Module For Arduino Boards Pack of 3PCS $8.59 + $0.00 shipping
• Tone generator app from App store $0.00
• Jumper Cables from lab $0.00 (Provided by Washington University)
• Flexible Filament for 3D printing $0.00 (Provided by Washington University)

Total: $41.86