hillct

Installing ngrok on OSX

brew cask install ngrok

Using ngrok

The easiest way to use ngrok to tunnel into your localhost is if your local project is running on a specific port (e.g. not using named vhosts). You just run ngrok http [port number].

You can quickly boot up a local webserver using ruby. cd into the project's root directory and run ruby -run -e httpd . -p [port number].

const {PassThrough} = require('stream')
const fs = require('fs')

const d = new PassThrough()  

fs.createReadStream('tt2.js').pipe(d)  // can be piped from reaable stream

d.pipe(process.stdout)                 // can pipe to writable stream 
d.on('data', console.log) // also like readable

What else can we do with the Web Audio API?

Of course the Web Audio API is meant for synthesizing and processing audio data. It is tailored for that use case. But at least in our digital world audio data is just a series of numbers, which are typically somewhere between +1 and -1. So why can't we use the Web Audio API for general computations?

Almost a year ago I had the pleasure to give a talk at the Web Audio Conference in Atlanta. The conference featured a lot of great talks, which I really appreciated as an attendee. However, as a speaker it was tough to reduce my own talk until it was short enough to fit into the schedule. I had the feeling that I had to rush through my slides. Since then I planned to write down my findings in a more detailed way, but I never got around to it. Luckily I was asked to repeat my talk at our local Web Audio Meetup here in

Auto WiFi detection or wifi hostpot creation during boot for RPI

Note: These are rough notes and there may be some variance as versions of raspbian get updated but should be pretty reliable as a guide.

This gist provides some instructions and config in order to have your Raspberry PI automatically connect to a roamed network, however if it fails to discover an available network it will set itself up as a wireless access point for you to connect to.

Introduction

I wrote this gist to record the steps I followed to get docker running in my Raspberry Pi 3. The ARM ported debian version (Jessie) comes with an old version of docker. It is so old that the docker hub it tries to interact with doesn't work anymore :)

Hopefully this gist will help someone else to get docker running in their Raspberry Pi 3.

Installation

From original instructions at http://blog.hypriot.com/post/run-docker-rpi3-with-wifi/

-@rem *** Disable Some Service ***
-sc stop DiagTrack
-sc stop diagnosticshub.standardcollector.service
-sc stop dmwappushservice
-sc stop WMPNetworkSvc
-sc stop WSearch
-sc config DiagTrack start= disabled
-sc config diagnosticshub.standardcollector.service start= disabled
-sc config dmwappushservice start= disabled


	/*
	Goal : instantly play any wav source without download the file and without <audio/>

	Idea is to use the fetch streaming API and pass raw data to web audio

	My use case is playng a wav file

	following http://stackoverflow.com/questions/38589614/webaudio-streaming-with-fetch-domexception-unable-to-decode-audio-data/38593356#38593356

	var express = require('express');
	var cookieParser = require('cookie-parser');
	var session = require('express-session');
	var flash = require('express-flash');
	var handlebars = require('express-handlebars')

	var app = express();
	var sessionStore = new session.MemoryStore;

	// View Engines

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>
	<script src="https://rawgit.com/amark/gun/0.5/gun.js"></script>
	<script id="jsbin-javascript">

	<script src="//ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
	<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/jquery-ui.min.js"></script><link rel='stylesheet' href='styles.css' type='text/css' media='all' />