test.plantuml

' https://plantuml.com/zh/
' 
@startuml
header 20210412
title 貓貓鬧鐘
skinparam sequenceArrowThickness 2
skinparam roundcorner 20
skinparam maxmessagesize 60
skinparam sequenceParticipant underline
actor User
participant "LEDs" as A
participant "按鈕" as B
participant "蜂鳴器" as E
participant "arduino" as D




User -> B: 按下按鈕
B->D:按鈕改變狀態
D->E:發出聲音
D->D:產生亂數 a: 1-6,  b: 1-6
D->A: 兩排 根據亂數 A B LED 亮

@enduml