iCircuit’s circuit simulator goes from iOS to Desktop

When it comes to schematic capture and circuit simulation on a mobile device, iCircuit for iOS got it right from the start. iCloud integration, intuitive touch controls, and fast application performance. Now (or Finally?), my favorite mobile circuit simulator, iCircuit, is available for OS X.

iCircuit with 555 Timer

iCircuit is based on the Falstad Circuit Simulator, which sadly, is a Java-based web app. For years I’ve installed the App on my iPhone and iPad almost immediately after turning on iCloud [for Android users, that’s basically the first step of activating an iOS device].

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OSX: Fixing the “Green Screen” issue when capturing your desktop (with Quicktime or other)

After spending too much time waiting for effects to render on my new AddOhms Tutorialcast, I decided it was time to upgrade computers.  When I went to capture a quick EAGLE video on my new MacBook Pro with Retina screen, I realized a problem with the Mac’s auto graphics chip switch.  Quicktime recorded only a green Screen.

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Simple Effect using Chromokey and Final Cut Pro X

Editing video has been something I enjoyed doing since High School.  There I used my first tape-based NLE video system to make a Jeopardy episode where I played both a contestant and the host. In the skit I got into an argument with myself.  Of course that was long before tools like Final Cut, After Effects, or even digital video cameras existed.  Now anyone can do cheap effects for fun.

Speaking of cheap effects, using a little bit of Final Cut Pro X magic and a piece of green paper, I was able to achieve this effect:

Why am I working on this?  Stay tuned… (you can probably guess where that’s going.)

How to Fix: Arduino is damaged and can’t be opened

Open source software that isn’t signed by an identified developer can cause headaches upgrading it on OSX. While working with the Arduino Due the first time, I downloaded 1.5 Beta of the Arduino IDE and ran into this error:

“Arduino is damaged and can’t be opened.  You should move it to the Trash.

Here’s why you see the “… is damaged and can’t be opened” dialog and how to fix it.

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OSX: Cathode, Best Terminal Ever!

Cathode from Secret Geometry is, hands down, my favorite Terminal Emulator for OSX.  It is, in my opinion, (near?) perfect emulation of classic computer terminals from the 1980s.  When using it, it reminds me of how far computers really have come.  It is also one of the funnest ways to ssh into a remote host to edit a CSS file real quick.

I like keeping mine set to 14.4k baud emulation.  The screen blur, when running Full Screen in Lion, almost makes me forget I’m using an LCD!

What truly amazes me is all of the little bits of polish that go into the emulation.  For example, remember hitting the side of a CRT and getting a little bit of jitter?  Move the terminal window around and the same thing happens.  There’s even an option to take a picture from an iSight, which appears as a reflective image.

Below is a YouTube Video I put together to show it off a little bit compared to the boring regular Terminal.app.  Head over to Secret Geometry’s web site to download Cathode and enjoy nostalgic terminal emulation.

LOC to GPX Converter

geocaching.com uses LOC files for its caches. If you are a premium member, then you have access to the GPX files. MacCaching was made around the GPX files. You can load a single cache or you import a pocket query. Initially, MacCaching didn’t support LOC files, so I created this wrapper around gpsbabel.

It is now a standalone LOC to GPX Converter for OS X (2.7mb).
Simply drop your LOC file onto the program’s window and a GPX will be generated.