An 8-step bleepy-bloopy sequencer? On a shoestring budget? Impossible! (Or is it?)
This project is a fair step up in complexity, so we’ll assemble and test on breadboards first. I’ll try to pick some up at Radio Shark, but please bring your own if you’ve got ‘em. Also, feel free to bring in your old noisemakers; we can splice the sequencer circuit right in.
And if you’re just coming to a workshop for the first time, this is paradoxically a good time to jump in. You’ll be behind on some of the “theory” but we’ll catch you up quick.
See you all at our regular time — 7:30 at the HacDC space!
For the next few Thursdays at 7:30 pm, Elliot will be leading a workshop on sound hacking from the ground up. We’ll mostly focus on building our own gear, but we’ll also borrow a couple tricks from the glitch/bender tradition.
April 16th, we’ll start off by scratch-building a mess of raw sound sources. After that, we’ll work on smoothing out the rough edges and trying to make this stuff more musical. (Or you could go for more cacophonous. It’s up to you.) After the first two or three weeks, I’m open to suggestions. Let’s see where we can take
This workshop series is going to involve soldering, (ab)use of digital CMOS chips for analog ends, a smidgen of electronics knowledge provided), and enough noise to ensure that you leave with a good solid headache.
Bring $5.00 to cover the cost of materials for April 16th.
Bring around 3-6 volts’ worth of batteries if you’d like to leave the space with something powered up. Two to four AA, AAA, C, or D cells will do. Three if you’re using rechargeables.
Also, if you’ve got a breadboard and would like to use it, bring that too. Otherwise, you’re going to be doing it dead-bug style like me.
Come on, feel the noise!
Monday night (Nov 10) I’ll be going over the I2C protocol and how to make it work for you. I2C is used in all sorts of sensors these days, and understanding how to make the AVR’s speak it is useful stuff!
I’ll bring in some I2C external memory chips, a temperature sensor, and a 3-axis accelerometer. There’ll also surely be steaming hot, AVR-to-AVR, master-slave action. After a little bit of lecture and some code demo, we’ll see how many of them we can get working…
7pm. The Space.
In honor of Columbus Day, the AVR class took a night off from “formal” instruction and messed around with noisemakers. Specifically, using analog-to-digital conversion techniques to control the pitch of a square wave run through a small speaker. Hilarity ensued. (Follow along with us at the AVR Microcontroller Class Wiki Page.)
[youtube eVdtaEa8bXw Light Dependent Theremin]
16 AVR programmer kits walked into a room in anti-static bags last night. 16 fully assembled and tested programmers walked out. Many people learned to solder and the sweet smell of flux filled the air. It doesn’t get better than that.
Except that next week, it will.
Special thanks to Mitch for the cool demos, soldering coaching, and endless enthusiasm.
If you couldn’t make it last night, don’t fret. The course will run again at a later date.
Head on over to the wiki for class notes and downloadables. http://wiki.hacdc.org/index.php?title=AVR_Microcontroller_Class
(And someone post up some photos.)