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Hacking on RS485

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Oct 112008
 

I spent the day today hacking on an RS485 circuit for the RepRap Project. It was successful, and pretty fun to boot. I managed to send serial data over a big long wire and had no noise problems. This stuff is going to form the basis of the 3rd generation electronics for controlling RepRap machines, and having a noise immune communications system. when you have motors and long wire drops is a major benefit.

Anyway, I wrote up a big long article about it on the RepRap blog if you’re interested in more technical details. Next up: SD Card reading and writing.

RS485 wiring setup

 Posted by at 8:26 pm
Oct 112008
 

The other day while hacking at the Resistor space, I realized I was getting a crick in my neck sitting hunched over at my laptop. I needed some sort of laptop stand to get the screen up higher, and one that I could get my external keyboard under so my computer wasn’t too far away. I’d never seen exactly what I was looking for, so I figured I’d whip one up!

A little while later, with some help from Inkscape and our Lazzzor, I had this laptop stand. I’m putting it up on Etsy to see if anyone else is interested in having their own.

This recycled cardboard model goes for $8 and is sold 100% in support of the laser. Support your local hackers! Acrylic and wood models are coming soon. View the listing & more pictures

Oct 092008
 

Justin was showing me the nearly-finished SpookyBox and I had to take a photo. Concealed within the seemingly benign exterior is an Arduino-powered dynamo of spookiness, when coupled with the Processing programming language and a touch of evil genius.

 Posted by at 1:05 pm
Oct 082008
 

We sort of took a break on classes in October, but we’re back in full force in November with a programming-oriented lineup. Here are the various classes we’re offering:

Danger Shield v1.0
Arduino Programming 101: Hello World
Sunday, November 02, 2008
1 session, 2 hours

The Arduino is a simple yet powerful microcontroller board. More info here: arduino.cc

This is your friendly introductory class. We’ll cover what an Arduino is, how to program your arduino, what a variable is, what a function is, how to call a function, basic statements. Most importantly, we’ll cover where to get help if you need it. Once we get a handle on how everything works, we’ll go about writing a simple program to blink an LED when a button is pressed.

If there is time, we’ll keep adding features and doing cool things.

An Arduino and a Danger Shield will be provided for use, but please bring a laptop if possible.

Instructor: Zach Smith


Beginning PHP: Getting Started
Saturday, November 08, 2008
Instructor: Kelly Farrell
2 hours, 1 session

Learn the basics of PHP, one of the most popular languages for
creating dynamic web pages and web applications. In this class you’ll
learn what you need to get started with PHP. We’ll cover what you need
to pick a web host, how to work with PHP files, and some basic syntax.

This class is perfect for people with little or no web programming
experience. Please bring a laptop to work on. If you already know your
way around SFTP and have a favorite code editor, skip ahead to
Beginning PHP: Variables, Functions, & More

Danger Shield v1.0
Arduino Programming 102: If Funky, Get Loopy
Sunday, November 09, 2008
1 Session, 2 Hour
Instructor: Zach Smith

Its recommended that you take the 101 class, but it is not required.

The Arduino is a simple yet powerful microcontroller board. More info here: arduino.cc

This class is focused on taking all the fundamentals of Arduino programming, and creating a useful program. We’ll dive into the wonderful world of if/then/else statements. We’ll traverse the ocean of loops and exit into a wonderful paradise of useful, functioning programs.

This class is based around the Arduino and the NYC Resistor Learner Shield, which is a fun device that has lots of cool, preset inputs/outputs for you to easily explore. We will be covering the basic functions of this device as well.

An Arduino and Danger Shield will be provided to each student, but please bring a laptop if possible.


Beginning PHP: Variables, Functions, & More
Saturday, November 15, 2008
Instructor: Kelly Farrell
2 Hours, 1 session

Learn the basics of PHP, one of the most popular languages for
creating dynamic web pages and web applications. We’ll cover
variables, functions, constants, handy tricks to make things easier,
and what you’ll need to get your first script up and running.

For this class you’ll need to be familiar with SFTP and basic HTML
concepts. If you’re starting from scratch consider taking Beginning
PHP: Getting Started. Please bring a laptop to work on.

Danger Shield v1.0
Arduino Programming 103: Sensory Overload
Sunday, November 16, 2008
1 Session, 2 Hours
Instructor: Zach Hoeken

It is recommended that you take the 101 and 102 classes, but it is not required.

The Arduino is a simple yet powerful microcontroller board. More info here: arduino.cc

During this class, we will explore the many different ways of gathering information from the outside world. The NYC Resistor Learner shield has many interesting sensors including a light sensor, a temperature sensor, a knock sensor, and some sliders. We will be examining each of these sensors and showing you how to use them in your programs.

An Arduino and Danger Shield will be provided to each student, but please bring a laptop if possible.

It’s very likely we’ll add more classes very soon, so make sure you check our updated class list!

 Posted by at 6:26 pm
Oct 082008
 

Diode Zombie

It’s party time at the hacker space again! This time bring your costume (no, really — or we’ll put one on you). Spend Halloween with us at NYC Resistor. With drinks, costumes, candy and spooky things aplenty, you can’t go wrong.

When: Friday, October 31st @ 9PM – ???
Where: NYC Resistor HQ, 397 Bridge Street Brooklyn NY 11201
Cover: $10.

breathing again!

 Uncategorized  12 Responses »
Oct 042008
 

They have been encarcerated in the EVIDENCE ROOM for over three month now, they seemed to be lost forever but they survived all procedure: my breathing books. In June I had been detained by TSA, Police, FBI and CIA in Newark Airport on my way back to Germany for more than 4 hours.  The reason for the official’s irritation was that I tried to carry a fully assembled electronical mechanism hidden in books. Given that that is not the smartest idea ever, it escalated over the top. I had been questioned, examined and interrogated, they ran a test on me and offered their result afterwards: “we think by now you must be a good person, ’cause now we know how often you change your underwear.” Humiliating!

Lost my flight, lost my project, couldn’t take part in an exhibition in G.

After most official attempts (governor’s letters etc.) failed to get my stuff back over the past months, I tracked down the Officer that had been in charge that day. Suddenly, when I finally managed to get hold of him, it seemed so easy: I was allowed to go and pick up my properties.

It involved a handover situation of semi-professional drugdealer level: At Terminal A of Newark Liberty International Airport I had to get into Mr. Napolitana’s allover white car (laquered from the outside and powdered from the inside, since on his way to our meeting point his fire extinguisher went off in his trunk!) After we agreed on business – I had to give a few signatures- I was handed a big black garbage bag – equally dusted-  and he drove off into the bureaucratic void he came from.

Each of the books has now been refined with the Officer’s name and the very case number.

I am trying to make an exhibition happen soon -with all evidence material – and you are all invited, I keep you posted!

 Posted by at 10:01 pm

My Cigar Box Lab

 Uncategorized  8 Responses »
Oct 042008
 

I like to hack on the go. So I made a charming little mini lab out of a cigar box and some electronic parts. It’s got a breadboard, a built-in Arduino, a couple of places to put loose parts and a control panel on one side. The control panel is the best part with LEDs, potentiometers, a switch and a button all mounted on the side of the box. I love it so!

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