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GUEST SPEAKER 1: IR bike lock.

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00:00:18,350 --> 00:00:20,060
GUEST SPEAKER 2:
Or... an IR light,

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00:00:20,060 --> 00:00:22,440
so we just combined
it all into one.

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00:00:22,440 --> 00:00:24,855
So if you want to
unlock this remotely

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00:00:24,855 --> 00:00:26,355
and you hit the
wrong button, you're

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going to get blinking lights.

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Nothing's going to happen.

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00:00:28,160 --> 00:00:33,300
But if you want to actually
unlock it, you aim.

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The light goes on
so you can see.

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00:00:34,860 --> 00:00:36,940
And now you've
unlocked your bike.

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00:00:36,940 --> 00:00:38,020
GUEST SPEAKER 1: And
then you can lock it.

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00:00:38,020 --> 00:00:40,061
GUEST SPEAKER 2: If you
want to lock it back up--

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[CLICK]

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00:00:43,570 --> 00:00:45,047
--light goes off, and you'll--

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GUEST SPEAKER 1: And
the other buttons

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are kind of reminiscent
of if someone

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00:00:48,772 --> 00:00:52,700
using the different key or
different remote control,

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00:00:52,700 --> 00:00:54,136
it's not the right one.

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GUEST SPEAKER 2: So nothing
else will set it off.

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[APPLAUSE]

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GUEST SPEAKER 3: If
you push a button,

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it sends the specific hex code.

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00:01:09,450 --> 00:01:11,906
So if we program in--

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if we program, the program
takes up the right hex code,

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then it will open up and close.

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PROFESSOR: There's
a IR tech standard.

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GUEST SPEAKER 3: Yeah.

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00:01:20,750 --> 00:01:24,000
So there's specific
libraries for each remote.

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00:01:24,000 --> 00:01:25,965
And as long as you have
that library installed,

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it'll understand
each you've sent in.

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GUEST SPEAKER 1:
But the easiest way

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to figure out what the
hex code is, is just

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00:01:32,240 --> 00:01:34,280
shining it on, putting
it on the serial monitor

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and figuring out
what the hex code is.

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We also built a emitter,
but it wasn't as nice.

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So we just decided to go
with the preset remote.

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PROFESSOR: Perfect.

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GUEST SPEAKER 2: It did work
at one point in time as well.

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AUDIENCE MEMBER: We
know that struggle.