Skip to content

Category Archives: Urban Computing

Hacking MP3 Players (and using LM386’s!)

When I was making the crickets, I ran into a lot of issues with finding a reasonably-priced, pcomp-able sound generation system. There’s some work (especially by Limor Fried) into making open-source MP3 players, but they ain’t cheap and they take a lot of tinkering. There’s voice chips, like those found in toys and/or [...]

Final Crickets Code

It dawned on me recently that I’d never posted the final cricket code here, so I went back, did some touch-ups, and slapped it up here.  If anyone’s going to try doing this, the line breaks may goof things up.  This is also assuming you’re using my wiring setup, with two relays (one attached to [...]

Conflux in the NY Times!

…with a bit of a nod to Mouna, RSG and yours truly, amongst others. I’m highly flattered, and a bit confused, but really glad the festival’s getting the attention it deserves. It was an amazing time — by far the best festival I’ve been involved in, and likely the best I’ve even been [...]

Conflux Flyer

How pimp, seriously?
Thanks a ton to Tom Jenkins and Rita Chipalkatty for their amazing eyes and design help on this — it looks GREAT.

Cricket #4!

Made this bugger yesterday. It’s all heat-shrinked and electrical taped, so it’s MUCH cleaner than its predecessors — moving along well!

Board 3 is under way

.flickr-photo { border: solid 2px #000000; } .flickr-yourcomment { } .flickr-frame { text-align: left; padding: 3px; } .flickr-caption { font-size: 0.8em; margin-top: 0px; }

IMG 0044, by doryexmachina.
Looking much cleaner, too. I’m trying to heatshrink everything for this one, so we’ll see how it goes, but it’s looking much cleaner so [...]

New Cricket!

So finally, I have a new board completed, camouflaged and tested — and so far all to a very pleasing end.
This one has a few advancements over the one I finished last semester. First and foremost, it’s much cleaner and better laid out, and secondly it has pots to control the sensitivity of the [...]

Cricket testing photos

I’ll be doing a full writeup of all this nonesense shortly, but he’s a pile of photos from the cricket progress thus far:

Cricket test video

Meant to post this earlier: testing the Crickets in action — video-styles!

This is just a breadboard prototype — it’s still just a pile of wires sitting in a takeout container, so visually it’s nowhere near there yet, but you can hear the song just fine from half a block away. We’ll see how it [...]

Crickets – back to work

With Conflux just weeks away, it’s probably a good time to start posting my advances with the new Concrete Cricket designs.

I took a really good look at my first boards for the concept I presented back in May, and spent some time getting a more power-efficient, louder, generally less buggy design together. I’m actually [...]