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Smart Alarm System

on May 23, 2024

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Introduction In this blog post, I'll walk you through the development of a Smart Alarm System built using the ESP32 microcontroller . This project integrates multiple security features, including a magnetic sensor for door/window monitoring , a keypad for secure access , a buzzer for alarms , an LCD for status display , and Wi-Fi connectivity for remote notifications . The system is housed in a plastic case and powered by a rechargeable battery with a charging circuit. Project Overview The Smart Alarm System is designed to: Detect unauthorized entry using a magnetic sensor (reed switch). Allow authorized users to arm/disarm the system via a 4x4 keypad . Trigger a loud buzzer in case of a security breach. Display system status on an LCD screen . Send Wi-Fi notifications (via MQTT, Telegram, or email) when triggered. ...

Creation and train model to process extracting meta data from pictures of receipts, automatic categorization and make prediction using OCR AI

Architecture of The Proposed System The Flowchart Diagram shows the design for optical character recognition. It represents the steps involved in the construction of the system and the flow of data. The system is divided into four different main stages. Flowchart Diagram Major phases of our OCR These phases are as follows: Image acquisition : To capture the image from an external source like scanner or a camera etc. Preprocessing : Once the image has been acquired, different preprocessing steps can be performed to improve the quality of image. Among the different preprocessing techniques are noise removal, thresholding and extraction image base line etc. Character segmentation : In this step, the characters in the image are separated such that they can be passed to recognition engine. Among the simplest techniques are connected component analysis and projection profiles can be used. However in complex situations, where the characters are overlapping broken or some noise is present...

Control robot with MATLAB (GUI)

MATLAB MATLAB is a matrix calculation software with simple syntax.With its functions specialized functions, MATLAB can also be considered as a programming language programming suitable for scientific problems. MATLAB is an interpreter: the instructions are interpreted and executed. line by line.MATLAB works in several environments such as XWindows, Windows, Macintosh There are two operating modes: 1. interactive mode: MATLAB executes the instructions as they are given by the user they are given by the user executive mode:MATLAB executes a "?chier M" (program in MATLAB language) line by line. in MATLAB language). MATLAB environment Command Window: In this Window, the user gives the instructions and MATLAB returns the results. Graphical Windows: MATLAB plots the graphs in these Window M Files: These are programs written in MATLAB language (written by the user). Toolboxes: These are collections of M files developed for specific application domains. specific application domains (...

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