*156B Week 9

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Water block is almost finished and will be tested

  • Drawing of PCB is finished and will be sent to manufacturer after final review

  • All components of circuits are delivered. The control method will be tested in the end of this week.

  • A prototype of physical controller box is built and tested. We will buy the components of the final design (such as lcd screen and buttons) after the meeting with sponsor.

  • The bluetooth module is included and tested, and a basic phone controller is set up in Blynk app.

Accomplishments from Previous Week

• • Manufactured the water block

  • Finalized the circuits

  • Purchased all component of the circuits

  • Improved the controlling methods from simple bang-bang to PD

  • Purchased all components of cooling loop

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Test the water block (Josh and Khang)

  • Assemble the water block and skin applicator (Josh and Khang)

  • Put together rest of cooling loop (Josh and Khang)

  • Improve the controlling method (Zinan)

  • Send the PCB drawing to manufacturer (Jacob)

  • Design and manufacture the controller box (Josh and Khang)

  • Purchase the components of controller box (Jacob and Zinan)

  • Solder all wires and components (Jacob and Zinan)

  • Assemble the controller box (Jacob and Zinan)

  • Assemble the whole device and power it correctly (whole team)

  • Finalize the project in Blynk app (Zinan)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • Did not meet with sponsor last week due to sponsor not being available.

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • Using braided wire (2/27) (Will use braided wire for greater reliability)

  • Using more water in circulation (2/27) (Plan on using 2-3 times the volume of water calculated)

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • N/A

Risks and Areas of Concern

• • How to power the whole device with only power supply?

  • How to reduce the external wire to make the design simple?

Resources or Information Required but not Available

• • N/A

Schedule

• • Describe upcoming milestone

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • Spent: $556.94

  • Remaining:$2443.06

Progress on Report and Webpage

• • Working on the first draft of poster