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Energy Monitoring in Real Time with IoT

Earlier, we designed a smart energy meter that used a current sensor to measure current. In that version, we manually set the voltage range...

₹500 Blind Stick Without Code

The Blind Stick is a low-cost assistive device designed to help visually impaired individuals detect obstacles and navigate safely. It uses an infrared (IR)...

I Turned My Raspberry Pi into an AI agent with OpenClaw That Can Control Apps, Shop & Automate Tasks (OpenClaw Guide)

The openClaw and AI agents represent a revolutionary advancement in AI. These agents can now perform real-world tasks beyond mere answering; they can also...

Solar Energy Harvesting Circuit

Summary: A low-light solar energy harvesting system using the LTC3105 with built-in MPPT can efficiently extract power from indoor ambient light (as low as a...

I Turned Raspberry Pi into a QR Code based Entry System with Auto ID Cards

QR codes are widely used in entry and exit systems for various events to monitor the number of participants and ensure that only authorized...

30 Rupees CAN Bus Transceiver Design 

Transreceiver plays a crucial role in CAN bus communication, transmitting data from the MCU to the CAN network. While most MCUs, such as the...

IoT-enabled CAN Bus Vehicle Monitoring System

This project demonstrates how to build an IoT-enabled CAN bus monitoring system using the Indusboard Coin. While the CAN bus is widely used in...

DIY CAN Bus Vehicle Sensor

Here we are designing a very small, tiny CAN network sensor that can be attached to any vehicle. It detects motion, accidents, and all...

Low-Cost 40A, 1200V Solid-State Relay with Voltage Controller

This project describes a high-power solid-state relay (SSR) and AC voltage controller built using a BTA41-1200BW TRIAC (40A, 1200V) and MOC3041 opto-triac. Unlike conventional...

Raspberry Pi Object Tracking Camera using MediaPipe

In this project, we build a real-time object-tracking camera using Raspberry Pi and MediaPipe. The camera detects a selected object, calculates its position in...

Real-Time AC Current and Frequency Monitoring for Data Analysis and ML Training

In various industries and applications, it’s crucial to monitor the current and frequency of devices in real-time. These parameters are vital for the longevity...

Wearable Health Monitoring Tag With Telegram Bot

In this project, I built a wearable health monitoring tag that you can actually chat with on Telegram. Using a pulse oximeter sensor and...

AI-Based Hand Tracking for Robotic Arm Control

In this project, I show how to control a robotic arm servo using real-time hand tracking powered by AI image processing. We use MediaPipe...

Simple Overflow Stopper

Even though water covers two-thirds of the Earth’s surface, less than 1% of it is fresh and easily accessible for human use. Preventing unnecessary...

Multifunction Human Detection And Weather Monitoring IoT Radar System

A human detection system was designed earlier to utilise the microwave Doppler effect to detect human movement and trigger AC appliances such as light...

Density-Based Traffic Light Controller using Arduino

This project demonstrates a low-cost intelligent traffic signal system using Arduino and ultrasonic sensors to reduce congestion caused by fixed-timer traffic lights. Four HC-SR04...

Biometric Electronic Voting System with Real-Time Authentication and Keypad

This project presents a secure, low-cost electronic voting system using Arduino Uno, an R305 fingerprint sensor, a keypad-based button interface, and an LCD display....

Indoor Positioning Using BLE and Wi‑Fi Triangulation: Real‑Time Indoor Tracking

Struggling with GPS indoors? Learn how to build a DIY real-time indoor tracking system using BLE and Wi‑Fi triangulation. Track people, pets, or robots...
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