Week 18: Applications and Implications / Project Management¶

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week18 My Final Project…coming soon

Assignment¶

Application and Implication¶

Plan a final project masterpiece that integrates the range of units covered, answering:
- What will it do?
- Who’s done what beforehand?
- What sources will you use?
- What will you design?
- What materials and components will be used?
- Where will come from?
- How much will they cost?
- What parts and systems will be made?
- What processes will be used?
- What questions need to be answered?
- How will it be evaluated?
Your project should incorporate
- 2D and 3D design,
- additive and subtractive fabrication processes,
- electronics design and production,
- embedded microcontroller design,
- interfacing,
- and programming,
- system integration and packaging
Where possible, you should make rather than buy the parts of your project
Projects can be separate or joint, but need to show individual mastery of the skills, and be independently operable

Project Management¶

Prepare drafts of your final project summary slide (presentation.png, 1920x1080) and video clip (presentation.mp4, 1080p HTML5, < ~minute, < ~25 MB),put them in your root directory, and check that they are linked in the final presentation schedule

1. Plan a final project masterpiece that integrates the range of units covered, answering:¶

What will it do?¶

It is a portrait drawing robot. It is a robot that has a camera eye that can recognize human faces, and it has a brain that convert the image into a line drawing, and it has hands that draws the image.

The robot idea

Who’s done what beforehand?¶

There are a lot of SCARA armed drawing robot examples. But I don’t see a combination with portrait drawing mechanisms.

Reference SCARA draw bot projects

What sources will you use?¶

Study the above examples, and ask ChatGPT about the implementation idea
Seeed Wiki including esp-dl the deeplearning framework that works on the edge with pre-built face recognition model
SCS0009 servo, FE-URT-1 board and their manual

What will you design?¶

System diagram - Software application of portraight draiwng pipeline - camera - Streaming on TFT LCD - Switch to freeze a photo frame - Face recognition of a photo - Eye landmarks detection - Edge extraction of the photo and emphasizing eyes - Converting the edge image to a series of paths on a xy plane - Conversion of the paths to servo angles of right and left shoulders, and pen up and down - Electric circuit - Connect Xiao, TFT, and 3 serial servos - Want to recreate and incorporate part of the FE-URT-1 dev board - Mechanism - 5 bar linked mechanism - Pen up and down mechanism - Enclosure of the electric parts

What materials and components will be used?¶

PETG/PLA 3D print for the 5 bar mechanis and robot head part
Electronics parts
- My original PCB board that incorporate the below parts
- Seeed Studio Xiao ESP32S3 Sense
- 1.8inch SPI full color TFT LCD
- Button switch
- 3 SCS0009 servos
- 6V adoptor
- DCDC convertor from 6V to 5V
- Schottky barrier diode
- FE-URT-1 dev board or DIYed one
  - PNP transistor
  - 2 x Tristate buffer
Wooden board to secure paper
Pen and paper

Where will come from?¶

Fablab Kannai inventory
Local electronics shop “Akizuki”
Amazon
AliExpress
Digikey

How much will they cost?¶

BOM to be developed

What parts and systems will be made?¶

portraight drawing pipeline software
5 bar link mechanism

What processes will be used?¶

additive fabrication process - 3d printing of the robot body
subtractive fabrication process - Laser engraving of the wooden board
Electronics design and production
Programming
Systems integration

What questions need to be answered?¶

Is there a OV3660 camera with long cable that works with Xiao ESP32S3?
If not available in time, can I design a board that directly becomes the face of the robot?
❌ Does the SCS0009 servo moves with 5V input from Xiao only?
❌ Does the FE-URT-1 dev board for SCS0009 works with 5V input from Xiao only?
Can I design and mill a serical signal converter board that can be alternative to FE-URT-1?
Or just giving 6V to the servo and connect with Xiao’s TX is enough to move the servos?
How can I improve the drawing quality of a 5 bar linked scara robot

How will it be evaluated?¶

Cuteness of the robot
Quality of the portraight drawing