156B Week 3

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

• • Arrival of parts: 

    • Power Supply

    • Batteries

    • Bluetooth Module (HM-10)

  • Testing of commercial Peltier device to begin soon

Accomplishments from Previous Week

• • Completed procedures for testing of commercial Peltier device

  • Updated code to prepare for testing of commercial Peltier device

  • Acquired battery for final prototype

  • Determined how to connect microcontroller to mobile app and acquired necessary hardware

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

• • Troubleshoot controller code after testing (Justin)

  • Purchase RTDs?

  • Figure out how to implement code for RTDs to replace thermistors (if we decide to get RTDs) (Justin)

  • Test battery and implement bluetooth components to existing prototype [Hardware] (Tom)

  • Communicate successfully with micro controller through app (Kam)

  • Figure out components to use for the RLC filter (Jeffrey)

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

• • None

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

• • Use shunt resistor to measure current (In person, 4/06/20)

  • Look at previous TED project and their custom design of H-bridge (In Person, 4/06/20)

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

• • Need more analysis and technical content to validate design decisions (4/6/20, via zoom)

    • Calculations, including battery life

  • Consider safety issues when wearing the device (circuit protection) (4/6/20, via zoom)

Risks and Areas of Concern

• • Further delays for in coming commercial TEDs due to COVID-19

Resources or Information Required but not Available

• • Commercial TEDs

Schedule

• • Complete described goals for next week 

Budget (list amount spent and amount remaining)

• • Spent: $265

  • Remaining: $1744

Progress on Report and Webpage

• • Completed draft on the background, existing solutions, requirements, deliverables, references, and appendix including the individual component analyses

  • Updated home page of project website