Bajaj Batmobile User manual

Batmobile –Documentation/User Manual
20.01.2017
─To accelerate the advent of sustainable safe-driving transport.
Dhruvin Balar, Dhruv Patel & Shahil Patel
Bajaj Motors Ltd.
550 Finch Avenue West
Toronto, ON M2R 1N6

Contents
Batmobile Gallery.................................................................................................................................... 1
Car’s Function........................................................................................................................................... 2
Camera’s Function .................................................................................................................................. 3
Bluetooth + App Function ...................................................................................................................... 4
Controlling Guide .................................................................................................................................... 5
Encountered Problem + Solutions ....................................................................................................... 6

Batmobile Gallery
If you’ve purchased the original
Batmobile©™, you should have
a product that looks similar to
the pictures above. This gallery
consists of pictures of the first
Batmobile that was built by
three intellectual engineers:
Dhruvin Balar, Dhruv Patel, and
Shahil Patel. Continue on to
read more about our product.

Car’s Function
Camera’s Function
This is the top view of the car. Let’s cover the basics of this product. The right part of
this picture is the front part of the car, and the left part is the back part of the car. If
we begin with the front part, it consists of 2 wheels that are responsible for moving
left and right. In the front is the bumper for safety. Moreover, the red circle is the top
view of the suspensions of the car. The huge green cover is the phone’s case, where
you connect your phone to another via video conference and put your phone in
the case. Now if we take a look at the back part of the vehicle, it consists of an
Arduino, a motor shield, a Bluetooth module, and of course wires. The back part of
the car is like the brain, where all of the processing occurs for its functionality. The
two wheels at the back are responsible for moving forward and backward. The
Bluetooth module connects to an app that you can install on your phone. The
purpose of this project was to build a car that is controlled via an app that can be
controlled within large distances. The camera was to keep a track of the activities
that occur while driving. This car is 100% electric, so it is super-efficient and does not
pollute the air like normal cars would do nowadays. Overall, our team of engineers
did a very good job on finding the solution to the problem and worked diligently to
produce a 100% functional product.

Camera’s Function
The camera’s purpose was to ensure that the controller of the car gets to view
the surroundings so that the driver can drive safely and accordingly to the
surroundings. We first built a phone case holder according the phone we were
going to use, and after some measurements, we assembled a proper phone
carrying case. We then glued that case onto a servo motor as you can see
under the board. This motor allows the phone’s camera to rotate left and right
as per the purpose of this camera. For the connecting, you would need
another phone and connect the two phones via a video conference call.
There’s also sound in this, so you can speak and hear to the area that your car
is in. To control the movements of the camera, you must pair your phone with
the Bluetooth module so that you get access to the controls of the car.

Bluetooth + App Function
Connecting your phone to the Bluetooth module plays a pretty
important role as it was a part of the reason why this car was built. The
purpose is to control the car far distances away. And of course, we can’t
do that with wire. So we must go wireless. To connect your phone to the
Bluetooth module, you must first open up the app and press connect.
Once you select connect, you will get a black screen which will show the
Bluetooth devices near you. You have to select the one that says “HC-
05” because that’s the Bluetooth module that was used in this car. Once
you have connected to the Bluetooth, you are finally ready to control
the car.

Controlling Guide
Controlling the car is pretty straight forward and
self-explanatory. However, if you still don’t know
how to use it. Here’s how. This car can be controlled
in 2 ways. Manual mode and through gestures. The
manual mode consists of buttons you press to
control the car. For the gesture mode, you move
your phone around and control it according to how
you want the car to move. Let’s start off with the
manual mode. After connecting your phone to the
Bluetooth, you see multiple buttons here. The “UP,
DOWN, LEFT, RIGHT” buttons are to control the car
to move forward, backward, or move the wheels
left or right, respectively. The button “CHANGE
MODE” allows you to alternate between the modes
of the car and the camera’s servo motor. Likewise,
you would press left or right according to how you
want to control the camera. The stop button is to
stop. And the connect button is to connect to the
Bluetooth. If you press gyro, you go into the gesture
control mode. Where you would hold tilt your
phone front, back, left, right, according to how you
want to move the car. The block button stops the
car. And the manual button goes back to the
manual mode. This is pretty much how the app
works and how to control the car using this app.

Encountered Problem + Solutions
A good engineer is someone who is capable of solving problems that they
encounter while they are building something. For an engineer, a project without any
problems doesn’t add the sweetness to the project. In the process of building this
car, we encountered several different problems, some were big, some were small;
some took long to resolve, some took minutes to resolve. First of all, figuring out how
the motor works was a huge issue. We were first thinking of using D/C motors to
control the car, however, they were really slow and it was a problem to make them
move left and right. Then, we actually found old car motors that had the option of
moving left and right and backward and forward. We killed two birds in one shot.
Now the problem was that we actually didn’t know how the motors were powered
and controlled, so we started to test each of the pins and did trial and error to
actually make it work. The motors still weren’t fast though we did solve the problem.
So we decided to use transistors so that it could help add more power and therefore
run the motors properly at a decent speed. After testing it, we were unsuccessful.
We then got an Adafruit Motor shield to see if by adding external batteries would
help power up the motors. It didn’t work either. We discovered that there was an
electric jumper that we had to remove so that it can take power from the external
source. It still didn’t work because the power must’ve been too low. We finally
thought of another way of powering the motors up; through the use of a power
supply. We got a 12V power supply and stripped the ends to the external power
slots on the shield. Once we powered it up, the motor finally started to work. After
many trials and errors, we finally got the motors to work. In between these trials, we
were thinking of just using ordinary servo motors during the time we failed.
Nonetheless, we did learn that if you want to get something to work, never give up
on making that thing to work. As time goes by, you’ll eventually get it to work.
Overall, these were the problems we encountered during our build process of the
car. However, we did find the solutions to those problems and we had developed a
100% functional car according to how we wanted the car to function. In all, we
were successful in making the solution to the problem that was proposed.