Light Dependent Smart Switch System

AutomationHome Automation, Energy Management, Industrial Utilities

Overview

An automatic lighting control system using LDR (Light Dependent Resistor) sensors to detect ambient light intensity and automatically switch AC/DC electrical loads ON or OFF based on day/night conditions.

Key Features & Capabilities

Automatic day and night detection
Supports both AC and DC electrical loads
Reliable relay-based switching
Simple and robust embedded design
Low power consumption
Minimal manual intervention

Challenge / Problem Statement

Manual operation of lighting and electrical loads often leads to unnecessary energy wastage, especially during day–night transitions. A simple, reliable, and automatic switching system is needed that works with both AC and DC loads without complex infrastructure.

Oxymora Solution

Oxymora designed a Light Dependent Smart Switch System that uses an LDR to detect ambient light intensity. Based on light conditions, the embedded controller automatically switches electrical loads ON or OFF using relay-based control.

Hardware

LDR (Light Dependent Resistor) sensor
Embedded microcontroller
Relay modules for AC/DC switching
Power supply and protection circuitry

Software / Firmware

Embedded C
Light threshold detection logic
Switching control and debounce handling

Outcome / Impact

Reduced energy consumption through automation. Eliminated human dependency for routine switching. Improved operational efficiency in lighting systems. Delivered a cost-effective and scalable automation solution.