Koji Hisano hisano

時雨堂コトハジメ

更新:	2024-12-08
作者:	@voluntas
バージョン:	2024.2
URL:	https://voluntas.github.io/

typo などは https://x.com/voluntas までご連絡ください。

WebRTC の未来

更新:	2022-03-18
作者:	@voluntas
バージョン:	2022.1
URL:	http://voluntas.github.io/

https://webrtc.shiguredo.jp/rfc.html

時雨堂自社製品コトハジメ

更新:	2024-05-21
作者:	@voluntas
バージョン:	2024.1
URL:	https://voluntas.github.io/

概要

Controlling the Brother P-Touch Cube label maker from a computer

The Brother PTP300BT label maker is intended to be controlled using the official Brother P-Touch Design & Print iOS/Android app. The app has arbitrary limits on what you can print (1 text object and up to 3 preset icons), so I thought it would be a fun challenge to reverse engineer the protocol to print whatever I wanted.

Python code at the bottom if you want to skip the fine details.

Process

Intitially I had a quick peek at the Android APK to see if there was any useful information inside. The code that handles the communication with the printer in Print&Design turned out to be a native library, but the app clearly prepares a bitmap image and passes it to this native library for printing. Bitmaps are definitely something we can work with.

Taking website screenshots

These are instructions for taking screenshots of an entire webpage, not just the part of the webpage visible in the browser.

Website Screenshots in Safari

This requires Safari 11.3, which comes on macOS 10.3.4.

Open the website in Safari
If needed, go Safari > Preferences > Advanced > Show Develop Menu in Menu Bar

	# grab.py: fairly robust APK grabber for Android
	# Copyright (C) 2015-2016 Takahiro Yoshimura <[email protected]>. All rights reserved.
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is
	# furnished to do so, subject to the following conditions:
	#


	/*
	##Device = Desktops
	##Screen = 1281px to higher resolution desktops
	*/

	@media (min-width: 1281px) {

	/* CSS */

	Android Studio30分集中超絶技巧100選 DroidKaigi 2018
	山本ユウスケ @yusuke
	マウス、トラックパッドを使うのはやめましょう
	今日は以下のキーマップの話です
	Mac OSX: Mac OSX 10.5+
	Windows/Linux: Default
	他のキーマップだとQiitaやドキュメント、ブログなどを見る際に苦労します。
	設定画面 Cmd + , (Ctrl + Alt + S)
	プロジェクト設定画面 Cmd + ;
	File > Power Save Modeでバッテリー節約