WEBVTT

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GUEST SPEAKER 1: But
we got the propellers

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to start spinning
and everything.

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But then, the first problem
was that the propellers

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weren't spinning fast enough.

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GUEST SPEAKER 2: Yes This
is like the motors that

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were spinning the propellers.

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However, the motors
are too small,

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that it cannot provide enough
force for the drone to fly.

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So basically, we
disassembled everything

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and we get advice
from one of the clubs

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on campus, which is MITERS.

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And they tell us, our
drone is not going to fly.

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But I know people in our
class that have seen it spin.

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Like all of the four of us.

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Unfortunately, we
weren't able to take

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a picture of our initial drone.

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But we got inspired
by it, and so, Daren,

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do you want to talk about
the transmitter and receiver.

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The gyroscope that we
were initially working on.

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GUEST SPEAKER 3: OK,
so for the basic drone,

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we got the basic sensors,
like the gyroscope.

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So we managed to
get data off that

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and we tried to plan a simple
way to base on the balance

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until hard to
distribute the power

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and arrange it so that
if it tilts this way,

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the cycles will spin fast.

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[INAUDIBLE] I don't know
[INAUDIBLE] I mean, it might.

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If the drone is,
again, to the side,

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we just add more power to the
other side to compensate for it

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and try to keep it stable.

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That was the initial plan.

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Managed to get the
readings off the gyroscope

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so we can actually distribute
the power correctly.

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We were trying to control it
with a simple joystick using

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RF transceivers, but
we managed to get--

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it was working a few days
ago, then it suddenly

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decided to break and die.

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So we just scrapped
the entire idea

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and just went with
direct control.

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So for this [INAUDIBLE]
we just tried to--

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OK.

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As soon as we had
the [INAUDIBLE]

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we had the [INAUDIBLE] control.

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And I rotate the fan spin, so--

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GUEST SPEAKER 2:
Yes, so right now we

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have the joystick controlling
so it has four directions.

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It is going up.

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Like that.

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We should plug this in first.

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Sorry.

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GUEST SPEAKER: So we scrapped
our goal to make a drone,

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because it just wouldn't work.

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So we just got all the
pieces from our drone

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and then put it all together
to make something else.

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GUEST SPEAKER 2: Yeah, so the
basic science is the same.

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Like we used-- we didn't
use the motor shield,

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because we have a motor
driver, which is a chip that

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can control the propeller.

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So it's the same basic idea
of how the drone works, and we

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want to use the joystick.

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This is to control the
drone, as well, like up

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and down control the speed
and left and right control

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the servo motor that is
spinning underneath, which

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is our fan right now.

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So right now, I'll
control the car.

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It now is accelerating the fan.

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Sorry, decelerating.

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Yeah.

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And then it's going
back to the loop

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and going to the same speed
now and then accelerates up.

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[INAUDIBLE] So now it's
accelerating, right now.

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So if you want to turn a
fan right now, just like--

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OK, I guess the servo doesn't
like-- it works this morning,

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but--

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OK, so maybe--

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Yeah.

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Sorry I didn't really
make the thing work,

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but it actually does work--

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just like an hour ago, as well.

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So we get the common sense
of how a drone works,

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even we're maybe
taking too much--

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we were envisioning
wanting to build a drone,

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but then realized that
there's so much things need

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to consider.

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But the learning process
teaches us how to build a drone,

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and we actually went to MITERS.

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Do you want to say?

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GUEST SPEAKER 1: OK,
so we went to MITERS

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and then we showed them our
original drone design, which

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is like-- they looked at
it and they were like,

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oh it's not going to work,
because the motor driver can't

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take that much power
to fly a drone.

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And then we need a really,
really big battery to power

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the motors, and we
didn't have the battery

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to supply the power
in the first place.

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So they're just like,
hey, we have some pieces

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of a drone lying around.

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You guys should
put one together.

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So we put one together.

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Here it is.

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GUEST SPEAKER 2: Yes.

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Well the thing
is, it is too big,

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so it's very hard to
control it inside the room.

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You need a very big
land of parking lot

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or like a grass
land or something,

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so that you can actually fly it.

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So actually fly it,
and this is the basic--

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the transmitter they
lent us to fly it.

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And so I will
introduce this part.

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So these are the stronger,
brush-less motors.

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They can actually spin,
and unfortunately we

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break the propellers.

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That is initially all,
which is bigger than that.

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But we used our propellers, as
well, to assemble to this part,

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and we reprogrammed the--
so people in the MITERS

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helped us reprogram the
whole speed controllers

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and they get a really good
flight controllers that

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can control the four motors over
here, and let's see, actually.

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[INAUDIBLE] Can we
make it into the fan?

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Like I will be really...

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GUEST SPEAKER 4: It can
be like a something that

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cleans the floor.