|
|
@@ -0,0 +1,39 @@ |
|
|
|
|
|
\chapter{Specifications} |
|
|
|
|
|
|
|
|
|
|
|
\section{Format} |
|
|
|
|
|
To be able to show a tweet: |
|
|
|
|
|
\begin{itemize} |
|
|
|
|
|
\item The Writer shall be able to write at least 50 characters per line. |
|
|
|
|
|
\item The Writer shall be able to write at least 5 lines of text. |
|
|
|
|
|
\item The Writer shall display the author, time, content, and number of retweets, favorites and replies in plain-text. |
|
|
|
|
|
\item The Writer shall plot characters with a size that is readable from 4 meters for a person with good eyesight. |
|
|
|
|
|
\item The Writer shall plot in a regular used font with corresponding character spacing. |
|
|
|
|
|
\item When a new tweet is send to the Writer, the Writer, shall wipe the existing tweet and write down a new tweet. |
|
|
|
|
|
\item If the Writer is not wiping or writing then the Writer shall not obstruct the view of the whiteboard. |
|
|
|
|
|
\item While writing, the Writer shall have a writing speed of at least 1 character per second. |
|
|
|
|
|
\item If the Writer is tasked to wipe the tweet, the Writer shall wipe the tweet within 60 seconds |
|
|
|
|
|
\item When a reset-signal is send to the Writer, the Writer shall recalibrate its position on the board. |
|
|
|
|
|
\item When a wipe-signel is send to the Writer, the Writer shall wipe the board clean. |
|
|
|
|
|
\item The Writer shall not damage itself. |
|
|
|
|
|
\end{itemize} |
|
|
|
|
|
|
|
|
|
|
|
\section{Construction} |
|
|
|
|
|
The following limitations are based on the limited tools to that are available to me, the designer and developer. |
|
|
|
|
|
The lab of the university is closed for everybody including technical staff as a reaction to the anti-CoViD-19 measures. |
|
|
|
|
|
As a result I am bounded to my own tools and materials that I can afford. |
|
|
|
|
|
\begin{itemize} |
|
|
|
|
|
\item The Writer shall not exceed a total cost in materials and/or tools of €200. |
|
|
|
|
|
\item The Writer shall be constructed with simple tools in the following list: |
|
|
|
|
|
\begin{itemize} |
|
|
|
|
|
\item Screwdrivers (Hex/Inbus, Torx, Philips, etc) in a, although limited, wide variation of size. |
|
|
|
|
|
\item Drill |
|
|
|
|
|
\item Screwtap set |
|
|
|
|
|
\item Jigsaw |
|
|
|
|
|
\item Wrenches |
|
|
|
|
|
\item Soldering iron |
|
|
|
|
|
\item Various Pliers |
|
|
|
|
|
\item PLA 3D printer |
|
|
|
|
|
\end{itemize} |
|
|
|
|
|
\item The Writer shall not contain elements that can harm anyone during construction or operation. |
|
|
|
|
|
\end{itemize} |
|
|
|
|
|
|