Eightlines Creations

Experiments in Physical Computing

Passing the kid test

I've had the Solenoid project working for about a week and a half now, but the rain and lack of sunlight was getting in the way of making a video of everything in action. It worked out well because it gave me the chance to demonstrate the project to a ...

XBee Solenoid Controller

This Solenoid controller has been filled with a ton of small successes. Today I'm chalking up one more success to the list. I've got the XBee portion of the controller working. I had been working on this for a long time now, and the more I work on it the ...

A Simple redesign

If you can’t explain it simply, you don’t understand it. -- Albert Einstein The big issue I was having with the Solenoids was too much pressure. So while on a trip to Sudbury my Stepfather and I redesigned it. Well, I just told him what I was thinking of doing, and he ...

Listo Destructo

So the guys at the electronics stores are loving me lately. I'm pretty good at destroying things. While electronics is a reasonably affordable hobby, I've managed to turn it into something a little more extreme. So without further adieu, here's my "listo destructo": ATMega168 IC -- I was using a headless ...

Iterative Steps

If anyone had have told me this project would cost slightly in the range of $300 I would have probably not have started it at all. Individually the components don't cost that much, Arduino -- $60, transistors -- $10 for nine of them, copper connectors -- $2, and so on. ...

Controlling the Rain by Arduino

This past January I was biking home in the rain when this thought hit me. I was stopped at a red light looking at the pools of water on the ground wondering if it would be possible to calculate the density of rainfall. I thought, even when they're giving weather ...

January 6th 2013
Tags: Ideas 0 Comments

RoboBrrd and Voice Commands

Update - Jan 18, 2013 - Updated code to exclude newlines from the actions and embedded code as a Gist. Want your RoboBrrd (or any other Arduino app) to obey your every command? Here's a quick script using Florian Schultz' Speech to Text Library (STT). This script will change the color ...
November 2nd 2012
Tags: Ideas 0 Comments

Arduino Leonardo and Windows 8

Ran into a problem installing the Arduino Leonardo on Windows 8 yesterday and I thought it would be useful to other people (including me, when my memory fails) to document the solution. Although the Leonardo does not require FTDI drivers, it still requires the COM port drivers to be installed. Windows ...
December 29th 2011
Tags: Code, Processing 0 Comments

DLP-RFID1 for Processing

I recently had to set up a Processing application to monitor 15 RFID readers. The source was in C++ so I made a quick port to Processing. I'm adding it here in case it's of use to anyone using a DLP-RFID1 device. Is there a better way of doing it? ...
June 9th 2010
Tags: Code, ObjectiveC, Three20, Tutorial 0 Comments

Three20 TTTableViewController commitEditingStyle

This post is mostly for my future reference. I found the documentation of the TTTableViewController's commitEditingStyle to be lacking. Some of the comments on StackOverflow provide the right answer, but the code wasn't posted so I struggled for a bit. Below is an example of the version I managed to ...
September 11th 2009
Tags: Found 0 Comments

TGIMBOEJ

The Great Internet Migratory Box of Electronics Junk (TGIMBOEJ) is a box. It's a box that arrives on your doorstep after you drop your name on a wiki page and wait a good deal of time. It's a box that has electronics junk inside and it works off the premise ...

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