Competency Demonstration Report: Bluetooth Robot Project Analysis

This report presents a competency demonstration for an electrical engineering project involving a Bluetooth-controlled robot equipped with a CMOS image sensor. The project aimed to develop a surveillance system that could be remotely controlled via Bluetooth, enhancing the monitoring experience. The student's role focused on signal transmission, specifically implementing a Bluetooth modem and limiting the operational range to 10 meters using UART communication protocol. The report details the project's background, objectives, the student's responsibilities, and the engineering knowledge applied, including the use of an 8051 microcontroller, wireless camera, and software tools like Proteus VSM. It also highlights the challenges faced, such as maintaining low voltage operations and ensuring reliable signal transmission, and the solutions implemented, including a rectifier and step-down transformer for power conversion. The collaborative nature of the project, involving teamwork and division of responsibilities, is also discussed. Overall, the report provides a comprehensive overview of the project's development, the student's contributions, and the successful implementation of a Bluetooth-controlled surveillance system.

COMPETENCY
DEMONSTRATION REPORT
Career Episode 3
NAME

CE 3.1 Project Information
Name of the project: Bluetooth Robot with CMOS Image Sensor
Location of the project: [PLEASE FILL]
Project Duration: [PLEASE FILL]
Organization: [PLEASE FILL]
Role and Designation during the time: Team Member
CE 3.2 Project Background
CE 3.2.1 Characteristics of the project
Surveillance applications can play a vital role in enhancing the security and law within a
city and implementing Bluetooth for the access of the operation could make it possible in an easy
manner. I have embedded Bluetooth control in the system to operate the wireless camera that can
be helpful in transmitting and receiving the signal at short range in serial format. This system
will enable the user to control and manipulate the view and movement of the camera through
Bluetooth interface using a PC. This project can be applicable and provide many facilities for the
home appliances and industry use. I have developed this project in a manner that it can be
applicable for the two-way data communication between the controlling device and the camera.
CE 3.2.2 Objectives developed for the project
I was motivated towards implementing these ideas in manner to deliver the project
successfully and practically implement the knowledge and skill that I had gathered during the

academics. For the successful deployment of the project I and my team had set the following
goals and objectives:
 To develop a surveillance system that can be controlled remotely
 To improve the surveillance experience and enhance the monitoring system
 To control both the navigation and view of the camera through PC
CE 3.2.3 My area of work
I was working in a team to develop this robot and I had tried to enable a module that can
be helpful in the transmission of the signals in a serial format. I had implemented the Bluetooth
modem for the control of the quality of the view and navigation of the wireless camera. I had to
cover the workings related to the Bluetooth modem and control of the signals. I was working on
the transmission of the signal between the wireless camera and the Bluetooth modem and
limiting the range of 10 meters for controlling the robot remotely. I had implemented the UART
communication protocol and was the biggest contribution in manner to enable the smooth and
effective flow of the signals.

CE 3.2.4 Project Group
CE 3.2.5 My responsibilities throughout the project
I was working on the signal transmission sector of the project and limiting the range of
the system through selecting the components at the low budget. I had taken the responsibility of
the signal transmission and I had to make sure that within 10 meters the signal is being
exchanged smoothly and efficiently. This should be arranged in a manner that the signal is not
blocked by any circumstance and the PC can easily transmit the signal for the projected action. I
had implemented the serial (UART) protocol that can be designated as the core principle of the
whole device. This enables the best communication protocol for the project and can be helpful in
enhancing the signal transmission.

CE 3.3 Distinctive Activity
CE 3.3.1 Comprehending the theory of the project
I had kept the project very simple in which, the Bluetooth wireless modem will be used
as the source of medium for the exchange of signal between the devices. Electronic components
are compatible with only 5V power supply and the source was 230V thus, it has been converted
into 5V D.C supply. We had used the wireless camera that can be connected to the PC via
Bluetooth and used Serial (UART) protocol for controlling the robotic camera. Microcontroller
is connected to the Bluetooth modem serially with the 9600 baud rate within the range of the 10
meters that can be operated within the frequency of 2.4 GHz frequency. I had used 8051
microcontroller with the power supply of 5V implemented with the serial (UART) that is the
core principle of the project.
Figure 1: Block Diagram of Whole System

CE 3.3.2 Engineering knowledge and skills applied in the project
I have implemented my engineering skills and knowledge through implementing
AT89S52 Microcontroller, Analog RF Wireless camera, Bluetooth modem, and UC Flash,
Proteus VSM, and Keil IDE software. Bluetooth modem and dongle is being used as the receiver
and the transmitter respectively for the signals to operate the moving and picture quality of the
wireless camera. For this transmission of signals, I have integrated the receiver within the
computer that implies this navigation and control. Power supply has been converted from 230 V
to 5V D.C through using a rectifier, step down transformer, and filter. The signal transmission
will be between the PC and the wireless camera that eliminates the further interference of power
loss and hence implies higher efficiency.
CE 3.3.3 Accomplishment and task performed
I had installed the receiver in the PC in manner to allow the interaction between the
wireless camera and commands through the computer. I had implemented the Bluetooth modem
and the Bluetooth dongle for the smooth and efficient transmission of the signals. This also
helped in limiting the range between 10 meters. I had used the Bluetooth of sensitivity 84dBm
and power 4dBm that implies the control over the robot and allows the control in the hand of the
PC user. The serial (UART) implementation made the control much easier and smooth, allows in
handling the control to the user, and navigates the robotic camera as per the will of the user.
Microcontroller switching has been enabled through the transistor switching through which the
actions can be changed by trigging the commands.

CE 3.3.4 Identified issues and their solutions
3.3.4.1 Issues
Developing the system with high efficiency and reliability was the biggest issue in
executing this project. Other issue faced by my team while delivering the project was the
operations to be maintained at low voltage as there were microcontrollers and D.C supply with
less voltage is required for keeping the electronic components safe. Range of the signal
transmission was another issue in the project because Bluetooth is a long range technology.
3.3.4.2 Solutions
UART communication protocol has been implemented within the project that leads to the
effective and efficient application and working of the device. This implies in much reliability due
to the better communication protocol and long-range signal transmission. For converting the
supply from 230V, I had implemented the rectifier and then step-down transformer for limiting
the voltage and a filter to equalize the voltage using 7805 regulator. Bluetooth dongle and
Bluetooth modem enabled the range up to 10 meters for the flow of the communication between
the devices.
CE 3.3.5 Plan to produce creative and innovative work
I had gathered knowledge related to the Bluetooth control robotic device through many
military experiments and enhanced my thinking through implementing UART communication
protocol for controlling the action to the system. I had implemented this as; it is a better
communication protocol for the communication between two machines and lead to the expected
action. The thoughts were gathered from the sources and additional information and technology
has been implemented within the project.

CE 3.3.6 Collaborative work
This was a collaborative work of five individual, I had two partners, one project leader,
and an assistant professor. and all have made their contribution in this project. The whole project
was divided into three phase in which everyone played their role with complete responsibilities.
Each individual was responsible to play their roles with responsibilities, it was their duties to
complete their area of work, and leader was responsible to manage these different areas of work
to a successful project. Installing the Bluetooth modem and Bluetooth dongle was the biggest
challenge in this project that was handled by my teammates and assistant professor provided his
suggestions on how to install these devices.
CE 3.4 Project Review
CE 3.4.1 Project Overview
I had developed this project for enhancing the surveillance technique through easy and
effective manner using Bluetooth modem and Bluetooth dongle. I had implemented these two
technologies for the efficient and effective user interface between the users and the robotic
camera. I had implemented Serial (UART) communication protocol for the better and without
interference communication between the device and the PC user. I had developed the project in
manner to allow the navigation and image quality of the wireless camera and operate the device
as per the need of the user.
CE 3.4.2 My contribution to work
I had played my role in collaboration with the team and developed a successful project
that can enhance the experience of monitoring facilities within the industries and home

appliances. This can also be helpful in enhancing the security through better surveillance
experience. I had implemented the UART and converted the power supply from 230V power
supply to 5V output for enabling the electronic components. I had used the Bluetooth dongle and
the Bluetooth modem for the efficient transmission of the signals between the PC user and the
wireless camera.