[sdiy] Accelerometers (was: VC pedal)

[Paddock, Toby]

Harry said:
> 
> yo' mssr Tim:  For your 'maracas' (which I also experimented with) 
> I would look into the Analog Devices ADXL-202E accelerometer.  
> It can do what you imagine far better than an opto circuit will...  
> you should be  able to get samples.  I built it 'deadbug' on a 
> small circuit board.  
> ...

Funny you'd mention accelerometers. I'm just finishing one to 
bring to the pacific nw synth meet. Been planning to build 
it for so long that the parts I had were 2 generations obsolete. 
But I finally gave up on all the features I wanted and just 
slapped together the minimum. It'll be ugly.

"specs":
0-5V outs (probably more like 0.5-4.5V)
X & Y axes (horz) 1 volt/g using ADXL203
Z axis (vert) something less than 1 volt/g using ADXL105 (only one
generation obsolete)
Button for 9V gate / s-trig.
2.5v out (to reference differential inputs on an o-scope)
Banana jacks / BNC outs 
Built in a recycled test box that seemed like a good idea at the time, but
is an ergonomic nightmare.

So I was wondering...  just in case someone is bringing a synth they
wouldn't mind plugging it in to, what plugs would it need?   :)

Later,
Toby