SHREE DEVI INSTITUTE OF TECHNOLOGY
Accredited by NAAC, Affiliated to VTU Belagaum & Recognised by AICTE Delhi
Airport Road,Kenjar,Mangaluru-574142 Karnataka
SMART SOLAR-POWERED BLUETOOTH SPEAKER WITH
INTEGRATED CHARGING SYSTEM
Under the guidance of
Mrs. Nischitha
Asst. Professor Department of E&CE
Presented by,
Akash Ramaji Lamani – 4SH22EC001
Diwakar S – 4SH22EC011
L Pavan Kumar – 4SH22EC020
Pushpa Shrinivas Moger – 4SH22EC035
ABSTRACT
A lightweight device that uses sunlight to generate electricity for
charging phones and gadgets, making it easy to carry anywhere.
Enables smooth music playback and device connection without
needing wires, providing a hassle-free experience.
Helps save and use energy efficiently, ensuring longer battery life
and reliable performance.
Research papers
Sl no Title Authors Description
• Foldable, compact solar-powered
Zynab Muhseen, Varsha Sundar, charging system.
Manimegalai Balakrishnan, • Supports GPS, Bluetooth, wired &
Portable Smart Solar Panel for wireless charging.
1 Vaishali Ravi, Soma Prathibha,
Consumer Electronics • Uses high-efficiency solar panels &
Divya Ganesh, Mithileysh lithium-ion batteries.
Sathiyanarayanan • Ideal for tourists, professionals, and
emergencies
2 Experimental Solar-Based Oleh Matviikiv, Michał Kozioł, • Designed a portable solar-powered
Rechargeable Battery Charger Krzysztof Pytel, Krystian Bilski, lithium-ion battery charger.
Wiktor Hudy, Stanislaw Gumula • Uses a microcontroller with dedicated
modules for efficient charging.
• Aims to promote renewable energy
solutions in modern engineering.
3 Solar-Powered Mobile Phone Charger Kanagamalliga S., Gowri • Explores the integration of solar
Tapping into Sustainable Energy Nandini P., Yuvaraju T. S., energy for charging mobile
Rajalingam S. devices.
• Focuses on sustainability and
renewable energy applications.
• Offers insights into components
and working principles of solar-
powered mobile chargers.
4 Multi-Source Based Battery Charging Sophia Jasmine G, Magdalin • Features an automatic charge
and Cutoff System Mary D, Kumar C, Lohith Raj cutoff for battery protection.
S, Nafica Parveen M, Neshan • Implements a Battery
Management System (BMS) for
T, Karthikeyan K efficiency.
• Enhances energy sustainability
with controlled switching
techniques.
5 Solar energy based mobile charging Prof. A. V. Sutar ,Piyusha • The system utilizes solar energy and
using inductive coupling Mhatre , Vanita Dighe , inductive coupling transmission to
transmission Prathamesh Karavkar , Vijaya wirelessly charge mobile phones.
• Power is transferred wirelessly using
Tandel mutual inductance between
transmitter and receiver coils.
6 Portable-Solar-Charger-with- Hussain A. Attia Beza , Negash • Uses a 5W, 17.6V solar panel for
Controlled-Charging-Current-for- Getu , Hasan Ghadban , efficient energy harvesting.
Mobile-Phone-Devices Ahmed K. Abu Mustafa • Ensures stable and safe power
delivery to mobile devices.
• Incorporates transistors, Zener diodes,
resistors, and a Darlington connection
for voltage regulation.
7
INTRODUCTION
• A portable solar-powered speaker that charges devices
and plays music wirelessly.
• Designed for energy efficiency, smart Bluetooth
connectivity, and outdoor usability.
• Built for durability, ensuring reliable performance in
different environments
FLOWCHART
COMPONENTS
• Solar Panel • Li-ion Batteries
• Charge Controller • Stereo Speakers
• USB Charger • Microcontroller
• Bluetooth module • Sensors
• LCD Screen • Wires & Connectors
• USB Hub • Enclosure material
Project Progress Report
Literature Review: A comprehensive analysis of existing studies and research papers
relevant to solar-powered devices, energy optimization, and Bluetooth-integrated systems.
Block Diagram : A structured visual representation outlining the functional components,
energy flow, and connectivity architecture of the proposed system.
Components Required: Identification and selection of key hardware elements necessary
for efficient solar energy utilization, Bluetooth connectivity, and device charging
capabilities.
The remaining tasks, including prototype development, system integration, testing, and
performance evaluation, are scheduled for completion .
Conclusion
• An innovative design that maximizes the use of renewable energy.
• A practical and effective solution for real-world applications.
• A high-tech, energy-efficient, and durable portable device.
