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Electrical engineering
Course: Electrical engineering > Unit 7
Lesson 5: Bit-zee Bot- Bit-zeeeeeeeeeee
- Bit-zeeeeeeeeeee (long version)
- Parts for Bit-zee and It-zee
- Tools for Bit-zee and It-zee
- Introduction
- Planning and propulsion
- Parts
- Chassis/frame
- Wheel mounts and fenders
- Component mounting holes
- Batteries/power
- Battery wires
- Power wires and on/off switch
- Motors/propulsion
- Motor controller functions
- Motor controller
- Motor controller connections
- Arduino connections
- Digital camera connections
- Digital camera connections II
- 5 volt power distribution board
- Digital recorder/player connections
- Power connector for the Arduino
- Prototype board
- Motor controller connection to Arduino
- Camera connection to the Arduino
- Bumper switches
- LED eyes
- IR sensor
- Chassis modifications
- Camera wiring update
- Programming
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Introduction
In this video we discuss some of the key parts of Bit-zee. Created by Karl Wendt.
Want to join the conversation?
- Is the Arduino board mentioned at :and the L-298 Chip described at 0:34reusable? ie once you make the Bit-Zee Bot can you take it apart and use these components to create something else? 0:42(11 votes)
- Assuming they don't solder the Arduino to anything, you should be able to take all of the wires out and use it again afterwards.(3 votes)
- Is there a way to get instructions on how to build this robot(8 votes)
- There is a lot of videos explaining how to build the robot.(1 vote)
- what would be the estimated cost for all this??? the camera would probably be pretty expensive. Could anyone make an estimated guess for the cost of this???(4 votes)
- I don't know which model the camera is but another Vivitar I found online is $25, so not too bad. As far as the chips, i have run across different models that vary in price.(2 votes)
- What was the radio used for?(3 votes)
- to so what ever you say in to it it will repeat you.(2 votes)
- hi, how would you view the pictures you take with the camera mounted to bit-zee??(3 votes)
- At,, it is explained that a signal is sent to the "IR Sensor." What is an IR Sensor, and what does it do? Where is it used in every-day objects? 1:41(3 votes)
- An IR sensor detects an infrared signal from the remote control, and it is used in everything from TV's to some remote control cars.(2 votes)
- i still do not get how it helps in math(1 vote)
- It helps in science. Plus in engineering you have to use math.(3 votes)
- I am trying to find something that will use Arduino for programming and learning how to program. Will this Bit-zee Project help me learn how to program, or is it a building project with no programming skills needed?(2 votes)
- This project is primarily hardware. There is very little programming in this project series. What there is, is in this lesson:
http://www.khanacademy.org/science/discoveries-projects/robots/Bit-zee/a/programming
This project will give you a good hardware foundation to learn to program though.(1 vote)
- Which video on the playlist is for connecting the remote so that it is able to control the bit-zee bot?(2 votes)
- Try to see by watching all the videos in the playlist.(1 vote)
- I want to make a bit zee bot but I need to know what to get. Can someone tell me please?(1 vote)
- Watch the videos on it and listen they name the stuff you need i think.(1 vote)
Video transcript
So how do we take
our products here that we've taken apart-- except
for the bottle, which is just a recycled good-- and we want
to see if we can create value by building something
new out of the parts that we've taken out of all
these different components here. So what we've done is we've
designed a new product that's kind of designed to get kids
excited about math and science, and in order for all these
products to work for us, we need to incorporate
some electronics. So we have an Arduino. It's a basically
programmable chip that you can easily wire
to other components. It's great for prototyping. And we have a L298
chip, which is this guy, on a motor control. It's set up as a
motor controller here, and the board that you can
see here comes as a kit. So we put that
together, and that'll allow us to control the
speed and direction of motors so that we can move
our little bot around. And then we have a
little sound chip here, and so that allows us to
record and playback sound. And so we'll control
everything with the Arduino. The motor controller will
let us drive motors around, and then this guy will help us
to record and play back sound. And we're going to use some of
the parts from these products to make something cool. So after three weeks
of development, we've come up with Bit-Zee Bot. Bit-Zee is a little
programmable robot that drives around and
has a little personality. You can control Bit-Zee with
a universal remote control-- the one that we took
apart, actually. And that sends a signal
right here to the IR sensor. And then that communicates
with the Arduino board and tells the Arduino board
that it just got a signal. And the Arduino can turn on
and off different functions, so we can make Bit-Zee
do a little dance, make its lights come on. And Bit-Zee has a
couple of switches here. There's a switch here
and a switch here, and those came out of the radio. And then you can that Bit-Zee's
nose came from a bottle cap, and its eyes came
from a bottle cap. And the power for Bit-Zee
is just some batteries that you can get from Radio
Shack in a battery holder, and the motors came
from the hair dryer. So here's one of the
hair dryer motors. And basically, we use that as
a wheel to push Bit-Zee around. Bit-Zee's also got the ability
to record and play back sound, so we use that, and you
can use the remote control to trigger that function. We've also got a
motor controller here, and that, of course,
allows us to control the motors, the
speed, and direction. The camera that we took apart,
we mounted to the board here, and that came out
of this camera. And you can use that to
take photos of things. And again, the
Arduino controls that, and we control the Arduino
with the remote control. And you can see there's what's
called a bread board here, and that's where
all the wires go to basically to allow
us to connect more things to the
Arduino And we have a number of resistors
and transistors here. The resistors
limit current flow, and the transistors are
functioning as switches, so they allow us to control
different devices, again, with our Arduino here. So this is Bit-Zee, and
Bit-Zee has got a personality. You can see Bit-Zee lights
up and does different things when it gets its
bumper pressed or when it bumps into something. So we're going to show
you more about Bit-Zee in the next few sessions.