Eightlines Creations

Experiments in Physical Computing

Data Logger

Been working on a data logging application lately with the intentions of recording my biking sessions and displaying them on a mapping API. The general idea is to use the Hall sensor common in many RPM applications to record revolutions to the EEPROM onboard the Arduino. I'm having a few issues ...

Expose saved passwords with Firebug

I'm filing this one under useful tricks. If you've got a password field the browser has saved and you can't recall the text (and you're too lazy to check the browser password save dialogue), fire up Firebug and press inspect. Target the password field and click. It will pull the ...

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 ...

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 ...
August 9th 2009
Tags: Ideas 0 Comments

Power Monitor Packet

As Hugo helpfully commented in a previous post, here is the link to the Power Monitor Patent. The specific page I'm linking to is the Packet model. Lots of reading to do here, but its pretty interesting. One of the things I find most interesting about this patent is the citations ...
July 26th 2009
Tags: Ideas 0 Comments

Building a Scooter Bike for Kids

Ages ago I bookmarked a design posted on Make for a Scooter Bike, as I intended on building one when my daughter got old enough. On a recent trip to the surplus store I picked up a wheelset for $3 and figured what better time to start than now. I ...
June 10th 2009
Tags: Ideas 0 Comments

Arduino Packet Analyzer

Following the previous success where we managed to see the transmissions from the Black & Decker Power Monitor, Andrew Kilpatrick and I went about trying to capture the packets. Without an access to an oscilloscope with packet capture capabilities we built our own with an Arduino. Essentially, the code waits for ...

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