# 10. Output devices

## Machine Building

Meeting with Armenia students

- 15:00-17:00JST (10:00-12:00 Armenia) ?
- 22:00- JST (17:00-Armenia) ?

![](./images/week10/time_jp_ar.png){width=300}


- Schedule
    - Apr 06: mechanical design, machine design (Class)
    - **Apr 09(Sat): local session**
    - Apr 13: midterm review
    - **Apr 16(Sat): local session**
    - Apr 20: input devices (1 min presentation)



## nueval

- Local evaluation

## break

Apr 13: midterm review

> **Midterm**
>  
> Prepare for global evaluation by having your local instructor  
> review your preceding assignments and final project site


## Group Assignment

>  measure the power consumption of an output device

- Ohm’s law
    - V = I x R
        - Voltage
        - Intensity of electricity
        - Resistance
    - P = I x V [W] = I^2 x R [W]

- How to measure Voltage
    - multimeter
- How to measure I
    - I = V/R
        - V: multimeter
        - R: known value
- Circuits
    - 直列(series)
    - 並列(parallel)

- Sense resistor / Shunt resistor
    - Ref. [Shunt Resistors ＜Current Sence Shunt Resistors＞](https://www.rohm.com/electronics-basics/resistors/shunt-resistors)

Ref. [last year local session](http://academany.fabcloud.io/fabacademy/2021/labs/kannai/site/instruction/local_session/week12/)

Ref. [last year group assignment](http://academany.fabcloud.io/fabacademy/2021/labs/kannai/site/group_assignments/week12/)


## individual assignment:
>   add an output device to a microcontroller board you've designed,  
>      and program it to do something

### Assessment

[Assessment](https://fabacademy.org/2022/nueval/output_devices.html)/Output Devices

> **Is it ok to use the LED in the hello board as an output device for this assignment?**  
> Answer: No, you need to do more.

[Assessment](https://fabacademy.org/2022/nueval/input_devices.html)/Input device


> **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.

#### Color LED
[kannai_inventry](https://docs.google.com/spreadsheets/d/16No34EYWp9jkpQH5ESc-zzDbUVTjdCI8g1H436G6a8c/edit#gid=426488364)

##### RGB LED

![](./images/week09/rgb_led.png){width=200}
![](./images/week09/rgb_led_sch.png){width=300}

##### NeoPixel(WS2812)

[![](./images/week09/WS2812.png){width=200}](https://akizukidenshi.com/catalog/g/gI-07915/)
![](./images/week09/WS2812_sch.png){width=200}  
C1 104 = 100nF = 0.1uF  
Ref. [uf-nf-pf-capacitor-conversion-table](https://www.newark.com/uf-nf-pf-capacitor-conversion-table)  
![](./images/week09/neopixel.png){width=200}  


##### neon (EL wire)

  - EL: Electroluminescence
  - Ref. [How to make EL-wire blink?(Arduino)](https://kavasmlikon.wordpress.com/2011/11/21/how-to-make-el-wire-blink/)

[![](./images/week09/EL_wire.png){width=300}](www.amazon.co.jp/dp/B09M8NP2YF)