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Universal PWM Signal Isolation Module

This PWM (pulse width modulation) signal isolation module is built around the widely adopted 6N137 high-speed optocoupler. The device combines a high-efficiency input LED...

Detecting Workers Without Helmet Using YOLO V5 And MaixCam

In industrial settings, safety helmets are a critical element of personal protective equipment (PPE), acting as the final barrier when other measures fail. Safety...

Automatic Certificate Generation Using MATLAB

MATLAB is a versatile tool that can automate many tasks. Presented here is a MATLAB code to generate certificates for workshops, conferences, symposiums, etc. Conventionally,...

Multi-Tasking Reminder Gadget With Electronic Calendar

This multitasking gadget supports elderly patients with memory impairments, individuals with infectious diseases, and students who need help staying organised. Equipped with a real-time...

Automatic Water Level Indicator And Controller

Water storage often presents challenges such as monitoring tank levels, preventing overflow, and reducing manual intervention to operate the pump. Two types of devices,...

Human Safety Device To Monitor Kids, Elderly, And Sick

This human safety device offers a compact, reliable solution for detecting, monitoring, and responding to emergencies involving vulnerable individuals. Built using an IndusBoard Coin,...

AI-Powered Gesture Detection Using Edge Impulse

Artificial intelligence for gesture recognition and classification has transformative potential across industries, from healthcare to manufacturing and consumer devices. It enables tasks like motion...

Building Fastest Finger First Indicator With Arduino

Fastest finger first indicators (FFFIs) bring precision to quiz games, measuring contestants’ reaction times with accuracy. Supporting up to eight teams, the system identifies...

Control Home Appliances With A Mobile Torch: DIY Light-Activated Switch Using LDR

Automation is now integral to daily life, with mobile phones serving as essential tools. This device employs a mobile phone torch to control domestic...

DIY SOS Device For Emergency Alerts

The safety of children, elderly people, medical patients and women is a prime concern, whenever they are outside or at home alone. Nobody wants...

Arduino-based Sewer Drain Shield for Smart Cities

Drainage systems are vital for storm water management but often transport pollutants, especially plastics, to rivers and oceans, harming ecosystems. Traditional sewer cleaning methods...

ESP32 Speech Function: Text to Speech

Speech capability in technology primarily has two dimensions: text to speech (TTS) and speech to text (STT). This ESP32 Text-to-Speech device focuses on TTS....

Street Light Controller

Two of the problems commonly associated with street lights are false triggering due to slight variation in the intensity of ambient light and no control over switching action. Here is a simple switching circuit for street lights that overcomes these problem

Flame-Sensing Fire Alarm Using an Arduino Nano

Fire safety alarms are crucial in both residential and industrial environments. Early fire detection can prevent significant damage and save lives. Flame sensors offer...

Micro Inverter – Battery Charger Circuit

Need a quick power boost? This simple circuit converts 12V DC to 230V AC. Perfect for relaxing with a night lamp or charging your...

Simple Low Power Inverter

Here is a simple low power inverter that converts 12V DC into 230-250V AC (DC to AC Converter). It can be used to power very...

Arduino Bluetooth Control Device

Creating an Arduino Bluetooth control device with an HC-05 Bluetooth module enables control of lights or even relays to manage AC appliances wirelessly using...

Access Control System Installation: Wiring, Setup, and Smooth Operation

This article describes the basic installation of an RFID and password-based door access control system. Access control systems allow only authorized persons to enter...
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