GUEST SPEAKER 1: So the original idea that we had
was to have music and lecture that
was triggered by when you got within a certain distance
of it, it would just turn on and start going.
But we had some problems with triggering this
upon coming close enough.
So this is the LED lights that dance
to the tempo of the music.
GUEST SPEAKER 2: And one of the cool things that we do
is actually use another environment
as well in conjunction with our Arduino.
It's called Processing.
So it's another environment that allows
you to integrate with other software on the computer--
[CLICK]
--any MP3 that you have.
So depending on the frequency, you
can assign a bass or a treble.
And so that's what assigns to each pin.
And so it's a really cool thing to know
that there's other environments that work alongside Arduino.
And we figured that within a couple hours
and I think it worked out nicely.
GUEST SPEAKER 3: And then along with the light show,
there's also letters for MIT.
GUEST SPEAKER 2: So we're going to be playing "Back
in Black," in honor of Tony Stark, an alumni of MIT.
[MUSIC PLAYING]
GUEST SPEAKER 3: It goes on for three minutes.
[LAUGHTER]
GUEST SPEAKER 1: It does.
[MUSIC - AC/DC, "BACK IN BLACK"]
[SINGING] Back in black.
I hit the sack.
I've been too long, I'm glad to be back.
Yes, I'm let loose from the noose,
that's kept me hanging about.
AUDIENCE: Are the two different colors of lights [INAUDIBLE]??
GUEST SPEAKER 2: Yeah, they are.
AUDIENCE: [INAUDIBLE]
GUEST SPEAKER 2: Yeah, they're--
so you could set those values differently.
Also, you could slice it up to more frequencies and ranges.
We almost had the sensor working.
It's just you need to have the processing language.
It doesn't have all the libraries
that the Arduino environment has,
so that's why the sensor wouldn't work.
Or you could also try to create--
next stage had the Arduino run a processing file
and activate the communication between both softwares.
So that would be the next stage to get actual sensor working
on Arduino.
And then run the processing environment
that runs Arduino again.
AUDIENCE: Due to the processing environment,
is the sensor for the sound or is there a sound sensor?
GUEST SPEAKER 2: No.
So we have code that slices the MP3 there.
So that's where the slicing code is.
And the processing has libraries where
you do Arduino dot this function, and Arduino library,
and it runs it.
AUDIENCE: I see.
GUEST SPEAKER 2: Yeah.