Simplex High-Speed Morse Coding with Ultra Low Power MSP430

Vibha Ravi; Vidhathri Udaya; Keshav Vaidyanathan Bharadwaj; Vivek Bettadapura Adishesha

doi:doi:10.11648/j.ajesa.20190701.14

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Simplex High-Speed Morse Coding with Ultra Low Power MSP430

Vibha Ravi, Vidhathri Udaya, Keshav Vaidyanathan Bharadwaj, Vivek Bettadapura Adishesha

Received: 31 July 2019 Accepted: 2 September 2019 Published: 17 September 2019

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Abstract

This paper presents the design and implementation of a simplex communication model using high-speed Morse coding. Morse code is a dot and dash code used from the 19^th century and prevails for highly secure applications. The objective of this paper is to design effective encoder and decoder circuits for the Morse code which draw less power. The model is implemented by using two microcontrollers – MSP430 for encoding and ATMEGA8 for decoding. The communication between microcontrollers and the end users are established using Bluetooth. The Morse code is transmitted through an optical medium as flashes of light. The light is flashed using an LED and detected using a phototransistor that constitute an optocoupler. The actuator and sensor pair in the optocoupler are varied by using combination of other actuators like IR diode, Laser and sensors like Photodiode. Each of these combinations have been analysed under the presence and absence of external light with varying distances and the resulting characteristics are plotted. This model is very effective for communication in noisy environments and eliminates the necessity of skilled personnel for decoding the message. It enhances the security and reduces the time required for the overall process. The model has been tested with information of various lengths and it has proven successful in performing the desired operation and delivering the correct output in all the cases.

DOI	10.11648/j.ajesa.20190701.14
Published in	American Journal of Embedded Systems and Applications (Volume 7, Issue 1, June 2019)
Page(s)	26-40
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Simplex Communication, Optical Medium, Morse Coding, MSP430 Micro-controller, ATMEGA8 Micro-Controller, Bluetooth Communication, Photo-transistor

References

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[2]	Manisha Barse, Rodney Manuel, “Morse Code - A Security Enhancer”, International Journal of Science and Research (IJSR), ISSN (Online): 2319-7064, Volume 5 Issue 8, August 2016.
[3]	N. S. Bakde, A. P. Thakare, “Morse Code Decoder - Using a PIC Microcontroller”, IJSETR, ISSN: 2278-7798, Volume 1, Issue 5, November 2012.
[4]	Ka, Hyun & Simpson, Rich. (2012). “Effectiveness of Morse Code as an Alternative Control Method for Powered Wheelchair Navigation”.
[5]	Gaspar, Pedro & Espírito Santo, António & Ribeiro, Bruno. (2010). “MSP430 microcontrollers essentials - A new approach for the embedded systems courses: Part 2 - System and peripherals”.
[6]	Pratibha Singh, Dipesh Sharma, Sonu Agrawal, “A Modern Study of Bluetooth Wireless Technology”, International Journal of Computer Science, Engineering and Information Technology (IJCSEIT), Vol. 1, No. 3, August 2011.
[7]	Anisha Cotta, Naik Trupti Devidas, Varda Kalidas Naik Ekoskar, “WIRELESS COMMUNICATION USING HC-05 BLUETOOTH MODULE INTERFACED WITH ARDUINO”, ISSN: 2278 – 7798 International Journal of Science, Engineering and Technology Research (IJSETR) Volume 5, Issue 4, April 2016.
[8]	Kunikowski, Wojciech & Czerwiński, Ernest & Olejnik, Pawel & Awrejcewicz, Jan. (2015). An Overview of ATmega AVR Microcontrollers Used in Scientific Research and Industrial Applications. PAR. 19. 15-20. 10.14313/PAR_215/15.
[9]	M. Rezaei, M. S. Park, C. L. Tan and H. Mohseni, “Sensitivity Limit of Nanoscale Phototransistors”, arXiv: 1704.05987v1 [physics.ins-det] 20 Apr 2017.
[10]	Lidyawati, Lita & Ramadhan Darlis, Arsyad & Jambola, Lucia. (2016). Implementation of Speech Simplex Communication using Visible Light, Conference: The 2016 International Symposium on Electronics and Smart Devices, At Institut Teknologi Bandung, West Java, Indonesia.
[11]	Khayal S. Chauhan, Kirit. R. Bhatt, “Portable Multi-Purpose Instrument Using MSP430 on Android Platform”, IJEDR, Volume 4, Issue 1, ISSN: 2321-9939.
[12]	Ohuru, Michael. (2019). Arduino as an ISP for AVR Microcontrollers (Atmega32).
[13]	Radek Fujdiak,, Jiří Mišurec, Petr Mlýnek, Ondřej Rášo, “Cryptography in Ultra-Low Power Microcontroller MSP430”, International Journal of Engineering Trends and Technology (IJETT) – Volume 6 Number 8- Dec 2013.
[14]	http://www.ti.com/lit/ds/symlink/msp430f5529.pdf
[15]	http://www.ti.com/lit/ug/slau533d/slau533d.pdf
[16]	http://www.kodenshi.co.jp/products/p-32.php
[17]	https://www.digikey.com/products/en?dc=21102&fid=804194
[18]	https://www.digikey.com/catalog/en/partgroup/bc417143/21102
[19]	https://cdn.sparkfun.com/datasheets/Wireless/Bluetooth/CSR-BC417-datasheet.pdf
[20]	https://texasmicrocontroller.blogspot.com/2017/09/hc-05-interfacing-with-msp430f5529.html
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[22]	https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2486-8-bit-AVR-microcontroller-ATmega8_L_datasheet.pdf

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APA Style

Vibha Ravi, Vidhathri Udaya, Keshav Vaidyanathan Bharadwaj, Vivek Bettadapura Adishesha. (2019). Simplex High-Speed Morse Coding with Ultra Low Power MSP430. American Journal of Embedded Systems and Applications, 7(1), 26-40. https://doi.org/10.11648/j.ajesa.20190701.14

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ACS Style

Vibha Ravi; Vidhathri Udaya; Keshav Vaidyanathan Bharadwaj; Vivek Bettadapura Adishesha. Simplex High-Speed Morse Coding with Ultra Low Power MSP430. Am. J. Embed. Syst. Appl. 2019, 7(1), 26-40. doi: 10.11648/j.ajesa.20190701.14

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AMA Style

Vibha Ravi, Vidhathri Udaya, Keshav Vaidyanathan Bharadwaj, Vivek Bettadapura Adishesha. Simplex High-Speed Morse Coding with Ultra Low Power MSP430. Am J Embed Syst Appl. 2019;7(1):26-40. doi: 10.11648/j.ajesa.20190701.14

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@article{10.11648/j.ajesa.20190701.14,
  author = {Vibha Ravi and Vidhathri Udaya and Keshav Vaidyanathan Bharadwaj and Vivek Bettadapura Adishesha},
  title = {Simplex High-Speed Morse Coding with Ultra Low Power MSP430},
  journal = {American Journal of Embedded Systems and Applications},
  volume = {7},
  number = {1},
  pages = {26-40},
  doi = {10.11648/j.ajesa.20190701.14},
  url = {https://doi.org/10.11648/j.ajesa.20190701.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajesa.20190701.14},
  abstract = {This paper presents the design and implementation of a simplex communication model using high-speed Morse coding. Morse code is a dot and dash code used from the 19th century and prevails for highly secure applications. The objective of this paper is to design effective encoder and decoder circuits for the Morse code which draw less power. The model is implemented by using two microcontrollers – MSP430 for encoding and ATMEGA8 for decoding. The communication between microcontrollers and the end users are established using Bluetooth. The Morse code is transmitted through an optical medium as flashes of light. The light is flashed using an LED and detected using a phototransistor that constitute an optocoupler. The actuator and sensor pair in the optocoupler are varied by using combination of other actuators like IR diode, Laser and sensors like Photodiode. Each of these combinations have been analysed under the presence and absence of external light with varying distances and the resulting characteristics are plotted. This model is very effective for communication in noisy environments and eliminates the necessity of skilled personnel for decoding the message. It enhances the security and reduces the time required for the overall process. The model has been tested with information of various lengths and it has proven successful in performing the desired operation and delivering the correct output in all the cases.},
 year = {2019}
}

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TY - JOUR
T1 - Simplex High-Speed Morse Coding with Ultra Low Power MSP430
AU - Vibha Ravi
AU - Vidhathri Udaya
AU - Keshav Vaidyanathan Bharadwaj
AU - Vivek Bettadapura Adishesha
Y1 - 2019/09/17
PY - 2019
N1 - https://doi.org/10.11648/j.ajesa.20190701.14
DO - 10.11648/j.ajesa.20190701.14
T2 - American Journal of Embedded Systems and Applications
JF - American Journal of Embedded Systems and Applications
JO - American Journal of Embedded Systems and Applications
SP - 26
EP - 40
PB - Science Publishing Group
SN - 2376-6085
UR - https://doi.org/10.11648/j.ajesa.20190701.14
AB - This paper presents the design and implementation of a simplex communication model using high-speed Morse coding. Morse code is a dot and dash code used from the 19th century and prevails for highly secure applications. The objective of this paper is to design effective encoder and decoder circuits for the Morse code which draw less power. The model is implemented by using two microcontrollers – MSP430 for encoding and ATMEGA8 for decoding. The communication between microcontrollers and the end users are established using Bluetooth. The Morse code is transmitted through an optical medium as flashes of light. The light is flashed using an LED and detected using a phototransistor that constitute an optocoupler. The actuator and sensor pair in the optocoupler are varied by using combination of other actuators like IR diode, Laser and sensors like Photodiode. Each of these combinations have been analysed under the presence and absence of external light with varying distances and the resulting characteristics are plotted. This model is very effective for communication in noisy environments and eliminates the necessity of skilled personnel for decoding the message. It enhances the security and reduces the time required for the overall process. The model has been tested with information of various lengths and it has proven successful in performing the desired operation and delivering the correct output in all the cases.
VL - 7
IS - 1
ER -

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Author Information

Vibha Ravi

Department of Electronics and Communication Engineering, RNS Institute of Technology, Visvesvaraya Technological University, Bengaluru, Karnataka, India
Vidhathri Udaya

Department of Electronics and Communication Engineering, RNS Institute of Technology, Visvesvaraya Technological University, Bengaluru, Karnataka, India
Keshav Vaidyanathan Bharadwaj

Department of Electronics and Communication Engineering, RNS Institute of Technology, Visvesvaraya Technological University, Bengaluru, Karnataka, India
Vivek Bettadapura Adishesha

Department of Electronics and Communication Engineering, RNS Institute of Technology, Visvesvaraya Technological University, Bengaluru, Karnataka, India

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APA Style

Vibha Ravi, Vidhathri Udaya, Keshav Vaidyanathan Bharadwaj, Vivek Bettadapura Adishesha. (2019). Simplex High-Speed Morse Coding with Ultra Low Power MSP430. American Journal of Embedded Systems and Applications, 7(1), 26-40. https://doi.org/10.11648/j.ajesa.20190701.14

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ACS Style

Vibha Ravi; Vidhathri Udaya; Keshav Vaidyanathan Bharadwaj; Vivek Bettadapura Adishesha. Simplex High-Speed Morse Coding with Ultra Low Power MSP430. Am. J. Embed. Syst. Appl. 2019, 7(1), 26-40. doi: 10.11648/j.ajesa.20190701.14

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AMA Style

Vibha Ravi, Vidhathri Udaya, Keshav Vaidyanathan Bharadwaj, Vivek Bettadapura Adishesha. Simplex High-Speed Morse Coding with Ultra Low Power MSP430. Am J Embed Syst Appl. 2019;7(1):26-40. doi: 10.11648/j.ajesa.20190701.14

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@article{10.11648/j.ajesa.20190701.14,
  author = {Vibha Ravi and Vidhathri Udaya and Keshav Vaidyanathan Bharadwaj and Vivek Bettadapura Adishesha},
  title = {Simplex High-Speed Morse Coding with Ultra Low Power MSP430},
  journal = {American Journal of Embedded Systems and Applications},
  volume = {7},
  number = {1},
  pages = {26-40},
  doi = {10.11648/j.ajesa.20190701.14},
  url = {https://doi.org/10.11648/j.ajesa.20190701.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajesa.20190701.14},
  abstract = {This paper presents the design and implementation of a simplex communication model using high-speed Morse coding. Morse code is a dot and dash code used from the 19th century and prevails for highly secure applications. The objective of this paper is to design effective encoder and decoder circuits for the Morse code which draw less power. The model is implemented by using two microcontrollers – MSP430 for encoding and ATMEGA8 for decoding. The communication between microcontrollers and the end users are established using Bluetooth. The Morse code is transmitted through an optical medium as flashes of light. The light is flashed using an LED and detected using a phototransistor that constitute an optocoupler. The actuator and sensor pair in the optocoupler are varied by using combination of other actuators like IR diode, Laser and sensors like Photodiode. Each of these combinations have been analysed under the presence and absence of external light with varying distances and the resulting characteristics are plotted. This model is very effective for communication in noisy environments and eliminates the necessity of skilled personnel for decoding the message. It enhances the security and reduces the time required for the overall process. The model has been tested with information of various lengths and it has proven successful in performing the desired operation and delivering the correct output in all the cases.},
 year = {2019}
}

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