Applications and Implications¶

link to Fab Academy class links

We were given this terminal command to compress our videos for this week. I wanted to make sure I understood it before using it, because I have my own compression program that I created in week 2.

click here for my week 4 notes on video compression

I uploaded the code to Claude, and asked it to explain the code to me. My compression program works really well, but I needed 1080p and mine makes it 720p. I could have used an altered version of the code on my original, but I decided that having the compressed file enlarged would probably make a smaller file than the original compressed to 1080p. I also altered the code so that I would not crop my length.

click here for my conversation with Claude

Final Project Slide¶

Final Project Slide

Final Project Video Teaser¶

Individual assignment:¶

Propose a final project masterpiece that integrates the range of units covered¶

Dorian's Magic Table! an interactive table for my magic shows that showcases the wonder of science

What does it do?¶

it is an interactive showpiece, and work table that uses hall sensors to trigger magical effects

Who's done what beforehand?¶

I have seen many touch tables, but not hall sensor tables. However, the principle is similar.

Smart table - interactive LED table - near disaster! by 120 Woodcraft shows an interactive LED table that uses proximity sensors. I did not want to use proximity sensors because everyone could set them off, but I liked the way the components were integrated.

What did you design?¶

CNC cutting files
- parametric cabinet
- routered table top
3D files
- dragon inlay
- sensor covers
- wireless led bugs
- creature cadge
Electronic design: pcbs
- ATtiny412 Node board
- XIAO esp32-C6 Teacher board
- RGB LED board
- Switch-2N3906 board

What sources did you use?¶

- Fab Academy Open Time
- Getting Started in Electronics by Forrest M. Mims, III
- Claude.ai
- Meshy.ai
- [Smart table - interactive LED table - near disaster!](https://youtu.be/L82zj9mbCQY?si=9m2IxW27g9xMOyfh) by 120 Woodcraft shows an interactive LED table that uses proximity sensors.  I did not want to use proximity sensors because everyone could set them off, but I liked the way the components were integrated.

What materials and components were used?¶

- plywood
- sweet gum live edge scrap wood
- epoxy resin
- 100nF
- CP_Elec_100uF_Panasonic_EEE-FN1E101UL
- LED_RGB_CreeLED_PLCC4
- Conn_Header_JST_PH_1x04_P2mm_Vertical_SMD
- Conn_USB_C_Socket_PowerOnly
- 4.7K
- 150R
- 5.1K
- Sensor_HallEffect_Analog_A1324LLHLT-T
- ATtiny412-SS
- XIAO ESP32-C6
- TVS0500DRV
- wire
- lever nuts
- cable clamps
- liquid electrical tape
- pcb boards
- solder
- solder paste
- flux
- led fairy lights
- transformer and wireless leds
- wood pla
- clear pla
- FTDI programmer

Where did they come from?¶

- the Fab Lab
- DigiKey
- Amazon
- Michael's Arts and Craft Store
- my random supplies

How much did they cost?¶

- about $171 + tax

What parts and systems were made?¶

- parametric cabinet
- routered table top
- dragon inlay
- sensor covers
- wireless led bugs
- creature cadge
- pcbs 
    - ATtiny412 Node board
    - XIAO esp32-C6 Teacher board
    - RGB LED board
    - Switch-2N3906 board

What processes were used?

- Project Management
    - website design and documentation
    - Post-it Kanban Board

- CAD
    - Fusion360
    - TinkerCad
    - CorelDraw

- Computer controlled cutting
    - Epilogue Laser engraver (bottom)
    - Cricut vinyl cutter stencils for props

- Embedded Programming
    - Arduino IDE 2 for programs to connect inputs and outputs

- 3D printing
    - dragon inlay
    - sensor caps
    - bugs
    - creature cage
    - magical plants

- Electronics 
    - design with KiCad

- Computer Controlled Machining
    - Shopbot CNC to mill top, and cabinets

- Electronics Production
    - milling PCBs with Carvera

- Inputs
    - hall sensors

- Outputs
    - LEDs both simple and RGB
    - Transformer for wireless transfer


- Networking
    - XIAO ESP32-C6 to ATtiny412s

- Mechanical Design
    - (Fizzbit)

- Molding and Casting
    - mold and cast a candle
    - used resin to fill inlay

- Interface and Application Programming
    - Arduino IDE 2 serial monitor

- System Integration
    - wire management inside table top, (and between cabinet backs)

- Embroidery
    - (costume embellishment)

What questions were answered?

so many question on how things work
- How to program an ATtiny412?
  - With a FTDI breakout board!
- How to communicate between an ESP32-C6 Teacher and ATtiny412 nodes running on 5V?
  - I2C communication through a BSS138 bi-directional Level Shifter
- How do I connect my wall adaptor to power my project?
  - Splice the wire, and connect to a LM2596 Buck Converter, but make sure to adjust the voltage before connecting to the table circuitry.
  I am using an old AC adaptor that has been sitting around for 20 years, so it is not worth it to buy a connector that fits.

What worked? What didn't? - didn't - milling details on plywood - connecting edges of top to hide plywood edges - making whisps of clouds flowing over the carving onto the top, it looks bad - quite a few pcb designs - check footprints and orientation - capacitors are important - use through hole screwed header connectors

did
- connecting through hole components from below kept the top of my pcb less crowded
- painting the carving so the epoxy can stay clear, and details can be seen.
- using batting and white mica powder to make clouds that hide the sensor caps
- 3D printing sensor caps to allow access into the carved part of the table
- my programing!

How was it evaluated? - if it can make a circuit turn on using my magic wand that has a magnetic tip - modular circuit design that allows for future magic circuits to be easily added - looks good, fits in a magical setting, with no electronics visable to break the magic spell

Bill of Material¶

Click here for my full BOM