• Sonal Sachin Kamate
• Swapnali Kharude
• Rohan Kumbhar

Automatic lighting control system is an electronic device engineered to manage the illumination within a room without requiring manual intervention. This system employs sensors and automated functionalities to detect the presence or absence of individuals in the space and adjust the lighting accordingly. It can be programmed to activate or deactivate the lights based on the time of day and can also be seamlessly integrated with other smart home devices for enhanced automation. The benefits of employing an automatic lighting control system include energy conservation and enhanced user convenience. The advancement of automated technologies in lighting control is anticipated to enhance the efficiency and efficacy of these systems, rendering them even more advantageous for users in the future. The primary goal of the project is to create a speech-controlled home appliance system wherein the load is switched on/off upon receiving a voice command from the user's mobile device. When the user transmits the signal from their mobile, remote operation is facilitated via any smartphone or tablet with Android OS, employing a GUI (Graphical User Interface) based voice command operation. At the transmitting end, an Android application device remote is utilized to transmit commands (voice signals). At the receiving end, these commands are converted to text and displayed on a 20X4 LCD screen interfaced to the microcontroller. Serial communication data sent from the Android application is received by a Bluetooth receiver interfaced to the microcontroller. The designated load will switch on/off when the user sends the signal, whether operating a single load or multiple loads. The microcontroller program references the serial data to display the received information on a 20X4 LCD screen. The power supply comprises a step-down transformer 230/12V, which lowers the voltage to 12V AC. This AC voltage is then rectified to DC using a bridge rectifier. Subsequently, ripples are smoothed out using a capacitive filter and regulated to +5V using a voltage regulator 7805, essential for the operation of the microcontroller and other components.

Microcontroller, Android application device

"Automatic Room Light Controller", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 3, page no.c17-c19, March-2024, Available :http://www.jetir.org/papers/JETIR2403204.pdf

"Automatic Room Light Controller", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 3, page no. ppc17-c19, March-2024, Available at : http://www.jetir.org/papers/JETIR2403204.pdf