Voice Activated Solar Powered Ceiling Fan

This project focuses on designing a voice activated solar powered fan, offering a user-friendly
solution. The project addresses challenges such as the inconvenience of manual fan operation,
particularly for elderly and disabled individuals, by introducing voice-controlled functionality.
The main objective is to utilize renewable energy and advanced control systems to enhance
accessibility, convenience, and energy independence. The system employs a 300W solar panel
as its primary energy source, converting solar energy into DC power stored in a 12V, 36Ah
lead-acid battery. A 600W inverter converts this stored DC power into 220V AC to power a
75W ceiling fan. A charge controller rated at 12V/24V, 50A ensures efficient energy regulation
and battery protection. For automation, an Arduino Nano microcontroller processes voice
commands via a voice recognition module. A 4-channel relay module manages the fan's
operation and speed control, while a 12V-to-5V power supply powers the Arduino and other
components safely. Tests were carried out to ensure that the voice automation was working
properly. Command for turning on and off the fan, and for setting various speeds were done 10
times each and an average of 80% success was recorded for turn on command, 90% for turn
off command and fan Speed to low was an average of 90% success Fan Speed to high was an
average of 90% success, fan Speed to medium was an average of 70% success. This project
highlights the potential for combining solar technology with automation to reduce reliance on
grid electricity while promoting smart home innovations. The design showcases a viable way
for harnessing solar energy, particularly in areas with abundant sunlight, contributing to
sustainability goals.