PlayNPort: A Portable Wireless Music Player and Text Reader System

TL;DR

This paper presents the design and implementation of a portable wireless music player and text reader using a Cortex-M microcontroller, focusing on consumer usability and integrating multiple hardware components.

Contribution

It introduces a compact, consumer-oriented wireless music and text reading device built with bare-metal programming on Cortex-M microcontrollers, addressing practical development challenges.

Findings

Successfully developed a portable device with wireless music and text reading capabilities.

Achieved a user-friendly interface comparable to consumer-grade products.

Overcame technical challenges in hardware integration and system stability.

Abstract

Portable Consumer Electronics has made a mark in the industry. With the ease of use at an accessible price range, they have experienced significant growth in the market. Our idea is to develop a portable wireless music player and text reader using a Cortex-M series microcontroller and bare-metal programming techniques. We chose to use an SD card as the storage device. The resulting electronic device is similar to a consumer grade music player available in a car. The system comprises an MCU, an MP3 encoder/decoder, an LCD, an audio output jack, an SD card and a remote control. We also present various challenges involved in developing the system and solutions we used to overcome the challenges. The intricacy of the work lies in the fact that the system was developed to be consumer-centric by providing a rich User Experience. It can be used as a personal entertainment system in a car.