10. Input devices¶

General Info¶

Nueval¶

https://nueval.fabacademy.org/#/login
With students with 2 or more assignments marked Complete at local eval level, you CAN request a Global Evaluation for them now.
Global Evaluation has started.

schedule¶

Apr 07: input devices
Apr 14: molding and cansting
Apr 21: output devices
Apr 28: networking and communications
(May 1: final presentations sign-up)
May 05: interface and application programming
May 12: wildcard week
May 19: applications and implications
May 26: invention, intellectual property, and income
Jun 02: project development
final presentations
- sign-ups open May 1
- Wed Jun 09
- Fri Jun 11
- Mon Jun 14
- Wed Jun 16
- (Fri Jun 18)
June 21: local to global eval cutoff
July 05: global eval to student cutoff
July 12: global eval to FAB16 graduation cutoff
Aug 9-13: FAB16
Dec 01: post-FAB16 cutoff for this cycle

final project pages¶

Final project requirements
Project Development | video
tracking your progress
- what tasks have been completed, and what tasks remain?
- what’s working? what’s not?
- what will happen when?
Project management
- documentation during development
- demand- vs supply-side time management
- spiral development,

modling and casting¶

ref. last year
MDX-15
- work area: 152.4mm × 101.6mm × 60.5mm
Machinable wax
- size: 152mm x 92mm x 39mm (real size is smaller)
Endmill
- 0.1250” DIA 4FL SE LONG AlTiN 1/8
  - Size: 1/8”=3.175mm
  - OverAll Length: 2-1/4”(2.25”) =57.15mm
- 0.0625” DIA 2FL SE AlTiN 1/16
  - Size: 1/16” =1.5875mm
  - OverAll Length: 1-1/2”(1.5”) =38.1mm
Design to think…
- XY size: real wax size
  - Final Part size < wax size - wax_wallx2 - mold_wallx2
  - distance between bumps凸 & dents凹: tool size > 1.58mm(1/16”) > 0.79mm(1/32”)
- Z depth: 1.5 in mill > 38.1 -　10mm?_collet
- Registration Key, Registration post
Process
- 3D modeling
  - Fusion360
- Tool Path
  - Modela Player4 (Windows)
  - Virtual Modela (Windows)
    - install
  - Rough cut (1/8”)
  - Finish cut(1/16”)
3D modeling
- sample
- design final part (positive)
- design molds to make final part (negative)
- design wax to make molds (positive)
make
- pour liquid silicone rubber into wax to cast molds (negative)
- pour liquid resin into molds to cast final part (positive)

Assignment¶

Individual assignment:¶

Note

measure something: add a sensor to a microcontroller board that you have designed and read it

Group assignment:¶

Note

probe an input device’s analog levels and digital signals

TODO: Individual assignment¶

add a sensor to a microcontroller board that you have designed

Kannai Inventory2021_student
AVR 1-series
- 412
- 1614
- 3216
pinout
- ref.Program AVR 1-seriese from UPDI

ATTiny3216 Breakout board
- ref. UPDI_2POS
- Eagle library UPDI_3POS

Tips

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network port
- I2C
  - SDA
  - SCL
- pull up 4.99k each
- ref. wiki

and read it

serial monitor
pyserial
processing
- ref. ArduinoとProcessingを連携させてシリアルデータをやり取りする
- ref. ArduinoからProcessingに値を送ってみる
chrome extension
- ref. Let Arduino Control Your Browser
test and samples
- Read input value on Attiny1614 over serial and display it
  1. Serial monitor
  2. Serial plotter
  3. Python(Tkinter)
  4. Processing
  5. Browser(p5.js)
- Serial plotter on Attiny3216 breakout board

Group assignment:¶

probe an input device’s analog levels and digital signals

oscilloscope
- probe analog signal before IC
- probe digital signal after IC

Assessment¶

Input Devices

Can I use a breadboard and/or jump wires to interface my input device(s)
- Answer: No. You can’t use a breadboard. If you use wires, they must be soldered or connected with connectors.

Last update: April 13, 2021