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A Cost-Effective Two-Way Household Wireless Door Intercom System

Temitayo O. Ejidokun 1, Oluwole J. Oke 2, Ibukun M. Omitola 3, and Toyese Oduneye 1
1. Department of Electrical, Electronics and Computer Engineering, Afe Babalola University, Ado-Ekiti, Nigeria
2. Department of Electronics and Electrical Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria
3. Department of Computer Science, Ladoke Akintola University of Technology, Ogbomoso, Nigeria

Abstract—This study utilized a wireless transceiver module (NRF24L01) and ATmega328 to implement a cost-effective household door intercom. The intercom consist of two units; the outdoor and indoor. The outdoor unit was used by the guest to communicate with the household owner to notify them of their presence at the door while the indoor unit was used to respond to the call. The transceiver module transmits and receives audio signals between the two units, while ATmega328 handles the conversion of the signal from analog to digital during transmission and vice-versa at reception. The outcome of the test and analysis carried out on the developed prototype shows that it is user-friendly, consumes less power, and also proves that it is a cost-effective solution that can be affordable and made to be readily available to the consumer.
Index Terms—Transceiver module, wireless intercom, cost-effective, system usability test

Cite: Temitayo O. Ejidokun, Oluwole J. Oke, Ibukun M. Omitola, and Toyese Oduneye, "A Cost-Effective Two-Way Household Wireless Door Intercom System," Journal of Communications vol. 16, no. 9, pp. 379-385, September 2021. Doi: 10.12720/jcm.16.9.379-385

Copyright © 2021 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.