*156B Week 10

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

• • Heating

    • wired together with the relays and runs with code

  • Stirring

    • wired with arduino

    • creating boundary so that the magnetic stir can catch onto the motor

  • Controls

    • arduino code written

    • run and tested with solenoid and heaters

  • Valve

    • solenoid wired/code tested (time based)

Accomplishments from Previous Week

• • Heating

    • immersion heater is activated using temperature sensor control

    • all are wired together with relays and arduino and code

    • waiting on high-temp glue to glue insulation to coffeemaker frame

    • made clamp for immersion heater

  • Stirring

    • base made

    • smaller magnetic stir bar made

  • Controls

    • arduino code functional and works with our components

  • Valve

    • wired with arduino and tested using time based controls (to account for steeping)

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

• • Heating (All)

    • need to test the all the heaters with water 

    • need to replace immersion heater (burned out during test)

    • make mounts/glue on heating elements (Soo)

  • Stirring

    • base needs to be extended (Ian)

    • creating silicone barrier so that magnetic stir bar stays in middle (Soo)

  • Controls 

    • finish tweaking and testing code (when run with water and ingredients) (Shahin)

    • clean and finish wiring (Arun)

  • Valve (Arun)

    • need to mount solenoid to frame

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

• • Friday March 4th (Prince)

    • Went over the progress of our project

    • told us that we should try to test with tea as soon as possible

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

• • Work on controls

    • talked a lot about closed loop control and temperature sensors

      • wired up temperature sensors and other motors/

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

Risks and Areas of Concern

Resources or Information Required but not Available

Schedule

• • Milestone: creating tea with all parts integrated

Budget (list amount spent and amount remaining)

• $770 spent, $230 remaining

Progress on Report and Webpage

• • Report is almost done being corrected (using notes from peer edited paper)

  • Webpage: pictures need to be updated with current progress