簡單的從機工作但甜美的用戶界面解決方案

　　像Arduino一家小型計算機板不僅僅是一個重視教育的車輛。生態系統得到專業工程師的熱情響應，解決了無數的感官和控制挑戰。它們可以從簡單的連接傳感器到控制機械或簡單機械的馬達或執行器。結合一個Arduino開發板和I/O或電機驅動盾牌可以滿足工程需要的運動控制。一個生態系統像Arduino開源性質意味著有很多的項目公布在網上，可以提供一個定制的應用程序的一個發射臺。有預先寫好的代碼在制造商網站或獨立的GitHub來源眾多。圖1是用于控制從GitHub的Arduino機器人代碼摘錄。

　　Figure 1： Developer communities provide a platform to find and share code for open-source projects.

　　User interface choices

　　At the other end of the connection， a user interface is needed. Equipment such as a robotic arm or a motorized probe may need little more than a set of controls for basic movements like forward/back， left/right， or clockwise/counter-clockwise rotation.

　　Smartphone app？

　　One solution is to use a smartphone as the main user interface controller. This has been widely adopted where consumers need to interact with smart “things” such as domestic heating or lighting systems， security devices or drones. The smartphone has many strengths， including its high resolution color display for presenting attractive instruments， sophisticated multi-touch capability， and versatile connectivity encompassing cellular， Wi-Fi? and Bluetooth?。 They are ubiquitous， and can be easily turned into a suitable controller simply by loading an app designed to accompany the new product.

　　For some projects， however， developing a custom app may be costly， time consuming， and outside the core skillset of the development team.