If you’ve ever seen this error:
MinOZW: error while loading shared libraries: libopenzwave.so.1.3: cannot open shared object file: No such file or directory or Error: libopenzwave.so.1.3: cannot open shared object file: No such file or directory
Just type this and it did the trick for me (Ubuntu 14.04).
sudo ldconfig /usr/local/lib64
So I’ve been trying to find a simple React example, one that uses a flux implementation that works out of the box in a browser without any compilation or node stuff. I couldn’t find one so I built one. Here it is: https://github.com/scottpreston/react-examples.
This requires, RefluxJS, ReactJS, React-Dom and a Browser. You can use node to run it if you want, but that’s not required. Enjoy! (Copy-Paste & ES5 Compatible)
// the action, nothing special
var myAction = Reflux.createAction();
// the store, holds state and listens to action.
var myStore = Reflux.createStore({
times: 0,
init: function () {
this.listenTo(myAction, this.actionCallback);
},
actionCallback: function () {
this.times++;
this.trigger(this.times);
}
});
// the react component, which subscribtes to the store and updates it's state via listen
var CountBox = React.createClass({
displayName: 'CountBox',
getInitialState: function () {
return {count: 0};
},
componentDidMount: function () {
var self = this;
myStore.listen(function (data) {
self.setState({count: data});
});
},
render: function () {
return (
// the component in plain old JS no JSX
React.createElement('div', {className: "countBox"},
"Count Value = " + this.state.count
)
);
}
});
ReactDOM.render(
React.createElement(CountBox, {count: 0}),
document.getElementById('example')
);
document.querySelector("#test").addEventListener("click", function() {
myAction(null);
});
I’ve been struggling a bit with openzwave items because its so poorly documented. I’ve finally figured out how to get results from a door sensors with the node package node-openzwave-shared.
If you follow the install script, then just add this event handler below, you can receive updates.
zwave.on('node event', function(nodeid, nodeEvt) {
console.log(new Date(), 'node event', nodeid, nodeEvt);
});
More live examples coming soon here: https://github.com/scottpreston/node-openzwave-examples
And via npm via npm-install node-openzwave-examples
This is a “selfie” of my arm prototype. Finding ergonomics more of a challenge, but that’s why you build it!
I’ve been searching for a NodeJS server for web sockets, but socket.io, required both the client and server to be run from within node. I wanted to connect to this server via a normal web page using WebSockets from HTML5. Here’s some code, hope you find it useful:
https://github.com/scottpreston/examples
Server Code
var WebSocketServer = require('ws').Server;
var wss = new WebSocketServer({port: 3000});
wss.on('connection', function (ws) {
ws.on('message', function (message) {
console.log('received: %s', message);
ws.send(message + "!!!!");
});
});
Client Code
var websocket = new WebSocket('ws://localhost:3000');
websocket.onopen = function (evt) {
websocket.send("This Rocks!");
websocket.close();
}
websocket.onmessage = function (evt) {
console.log('RESPONSE: ' + evt.data);
};
I was wondering how RequireJS and AMD worked. So I created this snip. It might not be correct but it worked for me.
load('foo', function (foo){
var f = new foo();
f.a = 100;
f.b = 200;
alert(f.add());
});
function define(name, callback) {
modules[name] = callback;
}
function load(file, callback) {
var script = document.createElement('script');
script.type = 'text/javascript';
script.async = true;
script.src = file + ".js";
(document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(script);
script.onload = function() {
callback(modules[file]);
};
}
var modules = [];
// foo.js
define("foo", function() {
var foo = {
a: 1,
b: 2,
add: function () {
return this.a + this.b;
}
};
return foo;
});
I decided to create a blog for my chevelle because there was so many things I was learning about it and thought I should help out some other folks working on their car.
I’ve researched a lot on YouTub and the internet as well as Chevelles.Com, but making a post there about what I learned just didn’t seem right.
To learn more visit: scottschevelle.com.
I recently had an UPS failure. My UPS and APC 650 ES, has a battery they call for is the RBC17. Which on Amazon.Com is $39.99. However when you peal the sticket off you get Vision UB1290. This battery (which is the same battery) cost around $15.00.
I imaging this happens a lot with companies looking to make a cheap buck. Hopefully this post catches someone search on “Alternative APC Battery” or something similar.
1) Throttle Cable: So I found that I needed a new throttle cable as the original one was 21.5″ long. For a Holley carb this was about an inch too short. I decided to get a Lokar 24″ universal cable with a new bracket. This should allow me to cut-to-fit the cable and get full throttle on it.
2) Rear Brakes: I wanted to get the car moving and rushed the rear brakes. Turns out the line does not fit as expected and I still need to install the emergency cable. I’ll take it out for a test run or two then put it up on blocks to fix this.
3) Alignment: I need to get this done after the brakes.
4) Pesky Oil/Fluid Leaks: My plan is to redo the engine this year, so I’m hoping to hold off for now on fixing these. The one near the distributer I need to keep a closer eye on. I’m not sure of the other leaks, I’m sure I’ll find out those soon enough.
5) Radio / Electronics: Hoping to get these sometime this summer, but only if I can drive it around more than have it on blocks.
To get my car running here’s what I have done to it thus far.