Laser – HVS Technologies

HVS-4593–Home security based on LASER lighting and PIC MC

hvsadmin — Thu, 16 Oct 2025 10:08:27 +0000

Here is a low-cost, invisible laser circuit to protect your house from thieves or trespassers. A laser pointer torch, which is easily available in the market, can be used to operate this device. The block diagram of the unit shown in Fig. depicts the overall arrangement for providing security to a house. A laser torch powered by power-supply is used for generating a laser beam. The laser beam is directed to finally fall on an LDR that forms part of the receiver unit. Any interruption of the beam by a thief/ trespasser will result into energisation of the alarm.

The power-supply circuit is a conventional full wave rectifier-filter circuit. Any alarm unit that operates on 230V AC can be connected at the output. The receiver unit comprises identical step-down transformers LDR, a transistor, and a few other passive components. When the LASER rays cut by the thieves the LDR will get difference and it will activate the Alarm with helm of transistors.

The major features of this project are:

Light sensing using LASER and LDR.
Alerting regarding thieves through buzzer.

The project provides learning’s on the following advancements:

Characteristics of LDR sensor.
Conversion of AC supply to DC supply.
Transistor working principle.
Need for drivers.
PCB design.

The major building blocks of this project are:

Regulated Power Supply.
Receiving circuit.
LDR sensor.
Buzzer with driver.

Software’s used:

PIC-C compiler for Embedded C programming.
PIC kit 2 programmer for dumping code into Micro controller.
Express SCH for Circuit design.

Regulated Power Supply:

Block Diagram:

video:

HVS-1025-.Home security based on LASER lighting system

hvsadmin — Wed, 15 Oct 2025 05:54:39 +0000

The major features of this project are:

Light sensing using LASER and LDR.
Alerting regarding thieves through buzzer.

The project provides learning’s on the following advancements:

Characteristics of LDR sensor.
Conversion of AC supply to DC supply.
Transistor working principle.
Need for drivers.
PCB design.

The major building blocks of this project are:

Regulated Power Supply.
Receiving circuit.
LDR sensor.
Buzzer with driver.

Regulated Power Supply:

Block Diagram:

video:

HVS-3549. Advanced Home Protection System using LASER based Security System

hvsadmin — Tue, 29 Jul 2025 07:50:17 +0000

This Advanced Home Protection System integrates multiple technologies to provide a robust security solution for residential spaces. Utilizing an Arduino UNO as the central controller, the system processes data from various sensors, including Passive Infrared Sensors (PIR) for motion detection and Light Dependent Resistors (LDR) for monitoring ambient light changes. A GSM module ensures real-time communication by sending SMS alerts to homeowners upon detecting any suspicious activity. Additionally, a laser system creates an invisible barrier that triggers alarms if breached, while a buzzer provides an audible warning to deter intruders. This multifaceted approach not only enhances security but also offers peace of mind, making it an effective tool for modern home protection.

The main object of this project:

Detect unauthorized entry using sensors.
Send real-time alerts via SMS.
Activate alarms to deter intruders.
Monitor ambient light for unusual activity.
Ensure system reliability with stable power supply.

The major building blocks of this project are:

Power Supply.
Arduino UNO.
PIR.
GSM.
Laser.
LDR.
Buzzer.

Software’s used:

ARDUINO IDE STUDIO compiler for Embedded C programming.
Express SCH for Circuit design.

Block Diagram:

video:

HVS-3516. Smart home sheild : IoT Diven Real-time threat Protection with photo to Telegram app

hvsadmin — Fri, 25 Jul 2025 12:25:37 +0000

The project presents an Internet of Things (IoT)-based home security system utilizing ESP-32, ESP-32 Camera, Keypad, LDR, Laser, PIR Sensor, and a Buzzer. The system aims to enhance home security by integrating various sensors to detect motion and unauthorized access, providing real-time alerts and notifications. The PIR Motion Sensor detects movement in the monitored area and triggers a buzzer alert to notify of potential intruders. The Laser Sensor serves as a tripwire, where any interruption in the laser beam by a person crossing it also activates a buzzer, ensuring an immediate response to unauthorized access attempts.

Additionally, the system incorporates a Keypad for password-based access control. If an incorrect password is entered, the ESP-32 Camera captures a photograph of the intruder and sends it as an image via Telegram to a predefined user, allowing for real-time monitoring. The LDR (Light Dependent Resistor) detects light levels to support the functionality of other components, potentially triggering events under certain lighting conditions. The Buzzer plays a critical role in alerting the user to any security breach, whether it’s a motion detected by PIR or a tripwire interruption by the laser sensor. This integrated system provides a robust, reliable, and easily deployable security solution for home automation and surveillance.

The main object of this project:

1. Intrusion Detection.
Visual Confirmation.
Buzzer Alert.
Enhanced Home Security.

The major building blocks of this project are:

Power Supply.
Esp32 Cam.
Esp-32 .
Laser.
Pir Sensor.
LDR.
Buzzer.
Keypod.

Software’s used:

ARDUINO IDE STUDIO compiler for Embedded C programming.
Express SCH for Circuit design.
IOT technology.

Block Diagram:

video: