Harry Jubb harryjubb

How to unbrick an Amazon Kindle Paperwhite™

This guide instructs you in how to unbrick an Amazon Kindle Paperwhite. The consequences of following it are your own responsibility. This method (opening the Kindle and using the serial interface) should be a last resort and should only be considered if other methods fail

The Guide

Pry open Kindle using a prying tool
Unscrew the screen and remove it from the base. Note that there's a screw hidden under the adhesive at the top in the middle
Solder tin wire to serial ports on the bottom
Attach tin wire to USB TTY device (order is ground, RX, TX, from the kindle's perspective, where GND is the smallest pad) and plug USB TTY device into your computer
Open Putty on your computer in serial mode, with the serial port specified as your USB device and baud configured to 115200

Note: you can now configure this simply in iTerm2's application settings. Go to Preferences > Appearance > System and select "Exclude from Dock and ⌘-Tab Application Switcher".

On my dual-drive MacBook Pro I have remapped the eject key to F13 using Karabiner and NoEjectDelay. The eject key has been assigned as the hotkey for a guake-style visor terminal using iTerm2. Having its own hotkey precludes the need for an icon, so I prefer to hide the iTerm dock icon.

To hide the dock icon of iTerm2 on Mac OS X:

/usr/libexec/PlistBuddy -c 'Add :LSUIElement bool true' /Applications/iTerm.app/Contents/Info.plist

via (https://www.linux.com/learn/tutorials/442438-vim-tips-folding-fun)

zf#j creates a fold from the cursor down # lines.
zf/string creates a fold from the cursor to string .
zj moves the cursor to the next fold.
zk moves the cursor to the previous fold.
zo opens a fold at the cursor.
zO opens all folds at the cursor.
zm increases the foldlevel by one.
zM closes all open folds.

Angular2 + JSPM cheat sheet

First time setup

install jspm beta: npm install -g jspm@beta
set up your project: jspm init
install dependencies: jspm install angular2 reflect-metadata zone.js es6-shim

This will create a jspm_packages folder, and a config.js file.

Open the config.js file - this file manages options for the System.js loader - tweak it as appropriate

Getting the code

git clone https://gist.github.com/6780d7cc0cabb1b4d6c8.git

Executing the code

$ npm install # maybe npm start will take care of it but just in case
$ npm start && open out.png

> [email protected] start /Users/bsergean/src/offscreen_sample

Oh My Fish Plugins

ansible: Ansible development package for Oh My Fish

apt: Short and friendly command wrapper for APT

battery: OS X and Linux compatible battery utilities

brew: Oh My Fish plugin to integrate Homebrew paths into shell.

Keyboard-only Mac Cheatsheet

Hi, I'm Lorna and I don't use a mouse. I have had RSI issues since a bad workstation setup at work in 2006. I've tried a number of extra hardware modifications but what works best for me is to use the keyboard and only the keyboard, so I'm in a good position and never reaching for anything else (except my coffee cup!). I rather unwisely took a job which required me to use a mac (I've been a linux user until now and also had the ability to choose my tools carefully) so here is my cheatsheet of the apps, tricks and keyboard shortcuts I'm using, mostly for my own reference. Since keyboard-only use is also great for productivity, you may also find some of these ideas useful, in which case at least something good has come of this :)

Apps List

There's more detail on a few of these apps but here is a quick overview of the tools I've installed and found helpful

Tool	Link	Comments

	# Load the required libraries:
	# * scipy
	# * numpy
	# * matplotlib
	from scipy.io import wavfile
	from matplotlib import pyplot as plt
	import numpy as np

	# Load the data and calculate the time of each sample
	samplerate, data = wavfile.read('Clapping.wav')

	function downloadString(text, fileType, fileName) {
	var blob = new Blob([text], { type: fileType });

	var a = document.createElement('a');
	a.download = fileName;
	a.href = URL.createObjectURL(blob);
	a.dataset.downloadurl = [fileType, a.download, a.href].join(':');
	a.style.display = "none";
	document.body.appendChild(a);
	a.click();

	.force-show-scrollbars ::-webkit-scrollbar-track:vertical {
	border-left: 1px solid #E7E7E7;
	box-shadow: 1px 0 1px 0 #F6F6F6 inset, -1px 0 1px 0 #F6F6F6 inset;
	}

	.force-show-scrollbars ::-webkit-scrollbar-track:horizontal {
	border-top: 1px solid #E7E7E7;
	box-shadow: 0 1px 1px 0 #F6F6F6 inset, 0 -1px 1px 0 #F6F6F6 inset;
	}