George White stonehippo

some hardware platforms I find interesting

Raspberry Pi - popular Linux SBCs, and now some really cool microcontrollers
MESH — drop-in DIY IoT components
Particle — Connected prototyping for wifi and cell-based products
Hologram — similar to Particle
Electric Imp — Connected device platform, with modules and services; part of Twilio now
~~Intel Edison — Tiny x86-class board~~ dead and buried
~~C.H.I.P — $9 computing platform~~ seems to be gone now
bluz — BLE boards, compatible with Particle Cloud

Elixir Web Frameworks

I'm learning Elixir. As usual, it's easier to learng a new language when there's some way to apply it. Building for the web is a decent application.

I'm collecting this list of Elixir Web frameworks for reference. Caveat: I haven't used these frameworks much or at all.

Phoenix Framework
Sugar Framework
Weber — as of 9/13/15 has not had a commit in over a year, probably dead
Dynamo Framework — retired and in maintenance mode. Do not use.

nodeMCU & ESP8266 resources

There are several ways to create firmware for the esp8266 serial wifi boards, including firmware written with Espressif SDK, Arduino, MicroPython and nodeMCU. nodeMCU is firmware that embeds a lua-based interpreter on the esp8266. This lets you write scripts directly on the device via the serial console, or saves scripts to be executed at boot.

Resources

The nodeMCU API — the complete API available on-device
esp8266 posts by Big Dan the Blogging Man — useful, real world stuff. Includes notes on how to set up the init.lua on an esp8266 so that in can be interrupted (a really useful thing when we don't want to have to reflash the board if something goes wrong with the startup script).
[Learn.Adafruit esp8266 posts](https://learn.adafruit.com/search?q=esp8266

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title></title>
	<style media="screen">
	body {
	font-size: 2em;
	}

	void setup() {
	// This code is run once, each time the Arduino is powered on or reset
	}

	void loop() {
	// This code is run repeatedly, as fast as the Arduino can run it
	}

	/*
	* Cantina Entryway Interactive Diorama
	*
	* The diorama currently consists of two motor-driven elements, a pair of rotating
	* arms. This sketch manages the movement of those arms.
	*
	* Each arm is attached to a DC gearmotor, which are driven via a SN745510 Dual
	* H-bridge. This IC allows for reversing the motors.
	*
	* Copyright (C) 2015 Cantina. All rights reserved.

	// The pattern Crockford uses these days.
	function constructor(spec) {
	var that = other_constructor(spec),
	member,
	method = function () {
	// spec, member, method
	}
	that.method = method;
	return that;
	}

	/*

	Takes a file object, assumed to be an image, and scales it to fit within
	a maximum width and height.

	Returns the resulting scaled image as a dataURL.

	*/
	function imageDownScaler(file, callback, maxWidth, maxHeight) {
	var scaleDimensionsIfNeeded = function(w, h, maxW, maxH) {

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Canvas Demo Knockout</title>
	<style>
	body {
	font-family: sans-serif;
	color: #555;
	}

	-- startup logic

	dofile("wifi.lua")
	dofile("server.lua")