The Monochron

Once I saw the Monochron website, I knew I had to have one. I love building stuff—I managed to even build one or two Heathkits before they were shut down for good, and a few years back I built this monster.  And a clock that plays Pong? Awesome. (Although I feel bad for the guy on the left- he keeps getting his butt kicked.  I mean, they even keep resetting the other guy’s score when he gets to 60 and he STILL loses.)

So, after a brief backordering delay, I had this in hand:

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Now, the first thing you need is a nice soldering iron. Since my favorite iron, which I’ve had for years, seems to have gone missing along with a box of stuff I had in the basement, I ordered a new one.  It’s exactly like the old one.  It’s a Weller WTCPT and it’s the best there is, I think.  I couldn’t bear the thought of going back to a non-temp controlled iron.  If you want to build stuff like this, and you think you’re going to do it, say, more than once a year, bite the bullet and get one- you can find it online for between $120-150.  Ironically, novices should benefit much more than pros with the expensive temp-controlled irons- novice solderers tend to leave the iron on the joint WAY longer than is necessary.

(One more note about the iron: I like to replace the stock tip, which measures about 1 and a half mm at the tip, with a conical tip like the PTS7, which is about .4 mm at the tip—especially for surface mount work.)

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So we start populating the board:

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MAD SOLDERING SKILLZ:

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Almost done! Now to attach the screen.

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And… success!

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It’s extremely simple to put together. In fact, it took me longer to get it in its enclosure than it did to build.  One tip, if you build this:  Take a drill bit just a hair larger than the holes in the screen’s circuit board to them to enlarge them.  They’re just a bit too small for the supplied screws, and the acrylic case is very fragile- you don’t want to have to put any more load on it when assembling than you need to.

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Here it is, completed and chilling on my desk.  I love it!

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Slides from today's Apple Educational Seminar

I had a small part in today’s Intro to iPhone Development talk by Steve Hayman of Apple, who awesomely wrote an app to play the Bears fight song on stage. Here’s the slides.

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Slides from my Core Data vs. SQLite Talk

Ben Gottlieb took the pro-Core Data side and I took the anti (well, not really anti-, more like “in this edge case you might want to use SQLite instead”) side at tonight’s CocoaHeads.  Here’s my slides, which as compared to Ben’s have a distinct lack of Jessica Rabbit.

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New revolutionary semiconductor technology: Write-Only Memory.

New revolutionary semiconductor technology: Write-Only Memory.

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