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Babbage Engine Works
21 December 2010 @ 07:02 pm
And look what he’s got! A terrible phone-video clip. Can a new phone be far away?

12 LEDS independently controlled by only four leads:

Babbage Engine Works
16 January 2010 @ 11:49 am

You can click through to the album and embiggen it there...
Babbage Engine Works
26 February 2008 @ 08:21 pm
So, I put a bristlebot kit up for auction on eBay. Want one? Item 140211016549
Babbage Engine Works
30 January 2008 @ 09:40 pm
If you recall the "sauna in the machine room" event earler this month, as the vendor was slow to provide a temperature sensor that could communicate to the outside world, I built one.

It's a prototyping shield on top of an arduino microcontroller, using a rather kewel digital temperature sensor from Dallas Semiconductor.

The next phase is to reduce it to a single board, for under $20.
Babbage Engine Works
30 January 2008 @ 09:28 pm
Over the last few days, I've been building a bristlebot. Take a toothbrush, a coin battery, a bit of doublesided foam tape and a pager vibrator motor, and...

[Right-clicky and "view image" to see it better]

Now, direct from youtube!

Methinks this will become an under-$5.00 kit for sale next fleamarket season...
Current Mood: inventive
Babbage Engine Works
05 December 2007 @ 10:53 am
Surface Mount Devices (SMDs) are tiny. Tiny as a small grain of sand.Collapse )

I'm really enthusiastic. :D
Babbage Engine Works
02 December 2007 @ 08:51 am
I had the fun of sorting out a "suprize" package from All Electronics the other day. Instead of cool components, I got a lot of stuff I'll probably have little use for, including at least 500 diodes. Through the judicious use of a magnifying glass, I have determined they are

Fairchild 1N4730A Zener (3.9V) diodes.

Anybody need some? Willing to swap.
Babbage Engine Works
15 November 2007 @ 09:47 am
A (n old) copy of Electronics and Instrumentation for Scientists, by Malmstadt [ ISBN-13: 9780805369175 ]. I remember having a copy of this in the 1972 timeframe, where it was called "Electronics for Scientists", required in my experimental physics class.

I hope it's as good as I remember.
Babbage Engine Works
15 November 2007 @ 09:00 am
Yep, there's treasure all around us...

Did you know that inside a $3.00 (or so) 23A Battery...

Do you want to learn more?Collapse )