markdown 女人（k）现在

Posted 2021-05-05

## Arduino Foudation

- Recommend : Arduino UNO (lots of shield)
- Arduino pad choose : https://www.arduino.cc/en/main/products
- Require : Arduino IDE / web version :   
1. https://id.arduino.cc/ 
2. https://create.arduino.cc/ 
- Prototyping Board / Bread Board / Mini Board
- cable : 紅色棕色 : power ; 黑白色：neutral / ground
- Actuators(執行器) / Output : that’s what make things happen. Like led and servo motor
- Arduino pinout
(https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=2ahUKEwiT9Z3s4N3hAhXHyIsBHUaBDZ8Qjhx6BAgBEAM&url=https%3A%2F%2Fmakezine.com%2F2013%2F02%2F06%2Farduino-uno-pinout-diagram%2F&psig=AOvVaw07UCqohXs2qOJtRMeE_CDI&ust=1555818256759726)
- Makey Makey(easy for kid)

- Serial Read
(https://www.arduino.cc/en/serial/read)
- IOT(Internet Of Thing)
- LPWAN(Long Distance)
- 

## Install Flutter 環境變數  
#### 講稿  
(https://docs.google.com/presentation/d/1XR0yRdaCRJ_kGx7LUiuhcadHgRWiii647Yvu_-xMnDg/edit#slide=id.p4)  

- .bash_profile  


    PATH=/usr/bin:/bin:/usr/sbin:/sbin:
    # export PATH

    # custom, local installations
    PATH=/usr/local/bin:/usr/local/sbin:"$PATH"
    PATH=/usr/local/lib:"$PATH"

    export PATH=/Users/RHsieh/tool/flutter/bin:$PATH

    export PATH

- 如果有安裝iTerm with ZSH,
(https://www.jianshu.com/p/4eedd5fb77fa) 

- 原因：  
oh-my-zsh的配置文件为.zshrc，而默认shell（bash）的配置文件为.bash_profile  
- 如何解决:  
打开Oh My Zsh的配置文件.zshrc（vi ~/.zshrc），在其中添加代码：  
1. export PATH=/usr/bin:/bin:/usr/sbin:/sbin:/Users/ching/flutter/bin:
2. source ~/.bash_profile
终端执行source ~/.zshrc即可  
  
[Imgur](https://i.imgur.com/sa3GIXn.png)