Portable Video Streaming System with Raspberry Pi Zero and mobile hotspot
Webcasting on a server-grade machine such as a laptop or desktop is routine and unremarkable. Streaming through modem port forwarding is similarly straightforward. What...
A Small Touch-Controlled Solid State Relay
The demand for modern touch-based control systems is rising quickly, driven by their sleek design, ease of use, and lack of mechanical components. This...
IoT-Based Environmental and Gas Sensing for Real-Time Monitoring
Environmental sensing plays a key role in managing air quality, controlling pollution, ensuring factory safety, detecting hazardous gases, and supporting laboratory monitoring. To be...
Laptop-Based HMI For DC Motor Speed And Direction Control
DC motors are usually controlled with switches or buttons for direction and a potentiometer for speed. While the potentiometer remains effective for speed regulation,...
Raspberry Pi Flight Tracker: Step-by-Step Guide
Flight tracking is fascinating—you can watch aeroplanes move in real time, see their altitude, speed, and even where they’re headed. Many aviation fans and...
IoT-Based Soil Moisture Mapping
In an era where sustainable farming and efficient resource management are paramount, the Soil Moisture Mapping project emerges as an innovative, low-cost solution for...
Step-by-Step Guide to Designing a Li-Fi System for Wireless Data Transfer
Light fidelity (Li-Fi) is a widely adopted form of wireless communication that uses optical energy to verify device functionality. A key challenge lies in...
AirPod: Standalone FM Earbud
Earlier in this series, a compact FM radio was created using a touch display. From there, the design moved forward with an FM radio...
Object Recognition and Distance Measurement Using Raspberry Pi 5 And Hailo-8L AI
Imagine a vehicle cruising at 54 kilometres per hour, roughly the speed of an object moving 0.5 metres per frame at 30 frames per...
Miniature AC-DC Module With Selectable Voltage
The increasing use of IoT devices and smart appliances has driven demand for compact and efficient power solutions. Traditional AC-DC converters tend to be...
Compact Buck Converter Design for Wearables and IoT (1.2V–3.3V Output)
A buck converter is a DC-DC power device that efficiently steps down a voltage to a lower level. It uses an inductor, resistors, and...
Advanced Satellite for Telemetry and Remote Access
Advanced Satellite for Telemetry and Remote Access (ASTRA) is a CubeSat model designed to offer hands-on experience in satellite technology. It serves as a...
DIY Smart Motion-Activated LED Strip Controller
Decorative lighting has become quite popular, with options such as LED surface panels, strip lights, COB lights, spotlights, and profile lights that are widely...
Build a Tiny FM Radio Inside an Earbud
In the June issue, the construction of a ‘Miniature Watch-Style FM Radio’ delivering stereo FM output was described. Building on that concept, the next...
AI-Powered Smoking Detection System Using MaixCam and YOLOv5
Over the past few years, smoking prevalence among adults in India fell from 14.0% (2009-2010) to 10.7% (2016-2017), thanks to public smoking bans, advertising...
Real-time Web-based Home Automation
In today's era of the Internet of Things (IoT), smart home automation has evolved from being a luxury to an accessible and essential part...
Automatic Humidifier For The Textile Industry Using Arduino
Precise humidity control is vital across various environments to preserve material quality and ensure optimal performance. In the textile industry, maintaining accurate humidity levels...
Set Up a Private AI Assistant at Home Using Raspberry Pi and Open Source LLMs
Discover how you can quickly set up a personal AI assistant on a home network using a Raspberry Pi. The past few years have seen...