12. Output devices

Class

• class site

Assignment

individual assignment:
add an output device to a microcontroller board you’ve designed,
and program it to do something
group assignment:
measure the power consumption of an output device

Previous year

• 2019 local session

Assesment

• Output Devices

Learning outcomes

• Demonstrate workflows used in circuit board design and fabrication
• Implement and interpret programming protocols

Have you?

• Described your design and fabrication process using words/images/screenshots, or linked to previous examples.
• Explained the programming process/es you used and how the microcontroller datasheet helped you.
• Outlined problems and how you fixed them
• Included original design files and code

To Do

Nueval

nueval.APP
- 全体としてnuevalのlocal evalを始めていないところが多かったので、Global evalが始められない状態

individual assignment

• your Design board
• Input device week
  • Attiny3216 board > done
  • Attiny1614 + 6 potentiomaters + UPDI + FTDI
  • design your board
• Output device week
  • Attiny3216 + Neopixel strip
  • Include..
  • Attiny3216 or smaller
  • 書き込み：UPDI pins + capaciter
  • 通信：network pins(5V) to Raspberry Pi(3.3V)
    • USBシリアル
    • FTDI pin + USB-serial board
    • on Board: try CH330
    • ref.SPI,I2C,UART
    • ref.GPIOシリアル + レギュレーター(5V > 3.3V)
  • 電源
    • 5V
    • USB
  • Neopixelコネクター
    • 5V, GND, DATA
  • design your board

group assignment

電力消費を計測する

• テスターで電流を測る
• Sanwa PM-3 > 電流は測れない
• OHM TDX-200
  • 直流電圧:0~600V
  • 交流電圧:0~600V
  • 直流電流:0~200mA/10A
  • 抵抗:0~200kΩ
  • テスターを電圧・電流を測る時で繋ぎ方が異なる

• 電圧測るように電流計を繋ぐと壊れる
  

• シャント抵抗器（Shunt resistance、電流検出抵抗器）で測定

  • ref.すっごい大電流からすっごい微小電流までの測り方あれこれ
  • ref.シャント抵抗器
  • Aのところにシャント抵抗（1 ohm抵抗）を入れる
  • その抵抗の両端の電圧を図る
  • I=V/R より Iを計算する
    
    

Next week

• Monday Recitation 23:00-24:00
• FABx Event
• Tuesday Asian Regional Review
  • 12:00
  • zoom http://fab.academany.org/2020/video.html
  • 21:00
  • zoom http://fab.academany.org/2020/meetings.html
• pw:1234
• Wendnesday Class 22:00-1:00
• Interface and Application Programming
• assignment
  individual assignment:
  write an application that interfaces a user with an input &/or output device that you made
  group assignment:
  compare as many tool options as possible