The document summarizes an internship project to develop an embedded IoT light monitoring system. The internship took place at Pentagon Space. The project involved using a light dependent resistor sensor, NodeMCU board, and MQTT broker to monitor light levels in real-time. The system accurately measured light levels under different conditions and transmitted data to an MQTT broker. The data was then analyzed in a software application to provide insights into light levels. The system allows for real-time monitoring, energy efficiency, and remote monitoring of light levels for applications in smart buildings, homes, agriculture, and industrial automation.

1. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 1
INTERNSHIP REVIEW
“EMBEDDED SYSTEM AND IOT”
Carried out at
PENTAGON SPACE
Presented by:
HIMA BINDU S 1SJ19EC063
1
INTERNAL GUIDE
Dr .KRUSHITHA SHETTY
Assistant Professor
Dept. Of ECE, SJCIT
||JAI SRI GURUDEV||
S J C INSTITUTE OF TECHNOLOGY
DEPARTMENT OF ELECTRONICSAND COMMUNICATION ENGINEERING
EXTERNAL GUIDE
Mr. HARISHA A M
Software engineer
PENTAGONSPACE

2. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 2
OUTLINE
 Company Profile
 About Internship Field
 About Internship Topic
 Task Performed
 Results
 Applications and Advantages
 Reflection
 Conclusion
 References

3. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 3
COMPANYPROFILE
 Pentagon Space was established in order to
address the skill gap rendered by technological
overhaul in Information Technology.
 The pace at which industries are moving needs
a necessary intervention to upskill the future IT
professionals.
 Considering futuristic aspects arising out of
automation, Data science and decision science,
AI & ML, Big data, Internet revolution (5G).
Needs are unprecedented. That's why we need
to "MASTER THE FUTURE".

4. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 4
INTERNSHIP FIELD
Embedded and IOT (Internet of Things)
Network
Things Systems/devices
Embedded system IOT(Internet of Thing)

5. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 5
INTERNSHIP TOPIC
Developing An Embedded IOT Light Monitoring System
A Node MCU is a development board that uses ESP8266 Wi fi module to enable IOT capabilities.
The project demonstrated the ability to integrate embedded systems and IoT technologies to solve real-world
problems, such as optimizing lighting systems for energy management, enhancing plant growth, or improving
occupant comfort.
A light monitoring system is a system that tracks and monitors the amount of light present in a particular environment
or space.
It uses LDR sensor to detect the ambient light intensity and sends the data to the Node MCU board.
A light monitoring system can provide a valuable insights into light levels in a given environment ,allowing for better
management and control of lighting system for various application.

6. Internship Presentation
Dept of ECE, SJCIT
6
TASK PERFORMED
Hardware
 Node MCU board
 Light sensor (LDR)
 Breadboard or PCB
 Jumper wires
 Resistors (10kΩ or similar)
 LED
 USB cable for power supply

7. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 7
TASK PERFORMED
SOFTWARE
 Arduino IDE : This is an open-source integrated development environment (IDE) that is used to
program the Node MCU board. It can be downloaded from the official Arduino website.
 MQTT Broker: A broker is a central hub that manages the communication between the NodeMCU
board and the other devices that are subscribed to the same topic.
 MQTT Client: An MQTT client is a software program that connects to the broker and subscribes to a
topic to receive data.
 Libraries: To program the Node MCU board, you will need to install the following libraries in the
Arduino IDE
 ESP8266 WiFi : Used to connect the Node MCU board to the wifi network
 PubSubClient : used to implement the MQTT protocol on Node MCU board

8. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 8
TASK PERFORMED
Circuit Diagram
IMPLEMENTATION

9. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 9
RESULTS
The system consists of a light sensor, a NodeMCU board, and an MQTT broker, which work together to collect
and transmit real-time data to other devices for analysis. The system was tested in a laboratory environment under
different lighting conditions. The system was able to accurately monitor light levels and transmit data in real-time
to the MQTT broker. The data was then analyzed using a software application, which provided useful insights on
the light levels in the environment. The software application displayed the real-time data in graphical form, which
made it easy to identify any changes in the light levels.

10. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 10
ADVANTAGES
ADVANTAGES
 Real-time monitoring
 Energy efficiency
 Improved productivity
 Remote monitoring
 Scalability

11. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 11
APPLICATIONS
APPLICATIONS
 Smart building : Different areas of a building, such as offices, conference rooms,
and common areas, and optimize the lighting system
 Smart homes : Monitor the light levels in different rooms of a house and
automatically adjust the lighting system based on the ambient light levels.
 Agriculture : The light levels in greenhouses or indoor farming facilities and adjust
the lighting system to optimize plant growth and improve crop yields.
 Industrial automation : The system can be used to monitor the light levels in
manufacturing or warehouse facilities and adjust the lighting system to improve
worker productivity and safety.

12. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 12
REFLECTION
Internship training started on 16 Aug 2022 at PENTAGON SPACE Private Limited located
in Bangalore.
Internship teaches about basics of Embedded and IOT technology and one of the complete
Real-time project called “ Embedded and IOT light monitoring system.

13. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 13
CONCLUSION
The light monitoring system using Node MCU and MQTT provides a cost-effective and
efficient solution for monitoring light levels in a particular environment. The system
consists of a light sensor, a Node MCU board, and an MQTT broker, which work together
to collect and transmit real-time data to other devices for analysis. The system was
evaluated based on its performance and ability to provide real-time data analysis for
various applications. The light monitoring system using Node MCU and MQTT has the
potential to revolutionize the way we monitor and optimize lighting systems in various
environments.

14. Internship Presentation
Dept of ECE, SJCIT
3/29/2023 14
REFERENCE
1. "Energy Savings through Intelligent Lighting Control" by E.E. Rijlaarsdam and P.J.M. van den Bosch. This article,
published in the Journal of Energy and Buildings, discusses the potential for energy savings through the use of
intelligent lighting control systems.
2. "Lighting Control Systems" by Craig DiLouie. This book provides a comprehensive overview of lighting control
systems, including their design, installation, and operation.
3. "Smart Lighting: A Literature Review" by Sandra Häuplik-Meusburger and Klaus Bollinger. This article provides an
overview of the current state of smart lighting technologies and their potential applications.
4. "Design and Implementation of a Wireless Sensor Network-Based Lighting Control System" by N. W. Yang and C. Y.
Lin. This paper presents a case study of a wireless sensor network-based lighting control system for a university
campus.
5. "Lighting Control Using Arduino" by Nicholas Falco. This article provides a tutorial on how to build a simple lighting
control system using an Arduino microcontroller.