Applications and Implications¶
link to Fab Academy class links
We were given this terminal command to compress our videos for this week.
ffmpeg -i input.mov \
-ss 0.0 -to 10.0 \
-vf "scale=1920:1080" -r 25 \
-c:v libx264 -profile:v high -level 4.1 -pix_fmt yuv420p \
-preset medium -crf 26 \
-movflags +faststart \
-c:a aac -b:a 192k \
output.mp4
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.
For my final video use the same code, but remove¶
-ss 0.0 -to 10.0 \
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.
- How to program an ATtiny412?
What worked? What didn't?¶
Didn't¶
- milling details on plywood when limited on time
- 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
- JST connecters are great for the product, but not prototyping.
- use terimial blocks (through hole screwed header connectors) for prototyping. The screws keep coming loose, and the wires fall out
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!
- my teacher board with lots of connections for a I2C bus, and common grounds and power
- my ATtiny412 student node design using the cut piece to support the sensor.
How was it evaluated?¶
- if it can make a circuit turn on using my magic wand that has a magnetic tip
* yes it works!!
- modular circuit design that allows for future magic circuits to be easily added
* absolutly! I switched out a student node the night before the presentation, and I easily reloaded the ESP32-C6 Teacher program at the FabLab to change the IP address for Processing
- looks good, fits in a magical setting, with no electronics visable to break the magic spell
* yes, some are visable if you look, but that was helpful in troubleshooting. There are 2 sensors caps that are currently in use, and can not be seen at all! I had to add a red led to them so I could see if they were being triggered.
Bill of Material¶
Click here for my full BOM