[MakeLV] Fwd: Ohm Sense makes sense of resistor color bands

[Will]

The minute someone has something that can handle 0203 surface mount
resistors I will be happy.

-Will

On Aug 6, 2011 10:20 PM, "Chris Callie" <reddog176 at gmail.com> wrote:
>
> For those of you that don't follow Hack-A-Day. Looks like someone read our
mailing list, and made the resistor app!
>
> Chris Callie
> ------------------------
> Mail: reddog176 at gmail.com
> Web: http://www.google.com/profiles/reddog176
>
>
> ---------- Forwarded message ----------
> From: Reddog176 <reddog176 at gmail.com>
> Date: Sat, Aug 6, 2011 at 4:17 PM
> Subject: Ohm Sense makes sense of resistor color bands
> To: Chris Callie <reddog176 at gmail.com>
>
>
>
>
> Sent to you by Reddog176 via Google Reader:
>
>
> Ohm Sense makes sense of resistor color bands
> via Hack a Day by Brian Benchoff on 8/6/11
>
> [Alex Busman]‘s first foray in iOS programming looks like a pretty useful
tool. He came up with Ohm Sense, an iPhone app that will take a picture of a
resistor and calculate the value based on the color bands. It’s a great tool
that we wish we had when we were starting out. At 99 cents, the app is also
much cheaper than the emotional cost of our relationship with Violet.
>
> [Alex]‘s used OpenCV for processing of the image data. The app works by
scanning the image from the top-left corner and continuing until it sees a
beige rectangle. After a bounding box is drawn around the resistor, the
iPhone scans the image for columns of color. After a little interpretation,
the value of the resistor is displayed on the screen. While it only works on
resistors with beige plastic now, [Alex] says he’ll expand that in the
future to include blue bodied metal-oxide resistors. [Alex] says the coding
only took a week, so if anyone would like code a similar app for Android, be
sure to tell us on our tip line.
>
> This isn’t [Alex]‘s first Hack A Day build. We featured his Handy Board
project that uses an NES controller to play some chiptunes earlier this
summer. Compared to the projects we’ve let slip over the last few months,
it’s good to see someone did something productive with their summer.
>
> [Alex] posted a demo of his resistor app on YouTube. Check it out below.
>
>
> Filed under: iphone hacks, Software Development, tool hacks
>
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