Development of Alexa Smart Home System With RFID and Laser Security Using ESP32 and Arduino

Vol.4, No.1

Abstract

This Smart Home System design offers a range of capabilities that enable the control of
various devices through the virtual assistant technology of Alexa, mobile applications, and
sets of manual switches to address common issues such as Wi-Fi disconnection, security
issues, and main system failure in smart home systems. The system utilizes microprocessors
such as ESP32 for the automation system, while the security system comprises Arduino-Uno
for the RFID and Laser Security of the door lock. Additionally, a Solar Power System setup is
included to address electrical power outages. The system provides homeowners or customers
with convenience and security while also being environmentally friendly, which is beneficial for
the body of knowledge, technology development, and humanity.

The results of the functional examination for utilized sensors and components show the
detailed prototype’s design, circuit connection, and data from testing. The ESP32
microprocessor was checked and successfully connected to the Wi-Fi. The Automated
Switching process of the Smart Home System within the 20-30 feet range of the Alexa Echo
Dot took about 1-5 seconds, depending on the speed of the Wi-Fi connection present. The
Bluetooth module with a 2.45GHz Frequency band connected to the Arduino Uno responds
well to the Home Security mobile application within the 10-meter range.

The system meets its objective by automatically controlling devices via Alexa, with the best
response occurring when there is a strong Wi-Fi connection. The two security features,
especially the laser security, provide an additional layer of protection to the house and act as
an alarm. The Alexa-based Smart Home System with RFID and Laser Security, powered by
ESP32 and Arduino, is effective in providing home automation and security.
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