Waldom spent several days at electronica India talking with global component manufacturers and distributors. The takeaway: the market has momentum, but the supply chain hasn’t caught up. Global firms are sending senior executives, hiring locally, and widening distribution. Demand spans automotive and EVs, telecom, data infrastructure, industrial, consumer, and renewables. India also wants to build…
In this project, we’ll build a “smart” restroom door system using PNP and NPN transistors, where simple switching logic replaces software. The design avoids apps and Wi-Fi and instead relies on solid engineering fundamentals. The aim is to design a low-cost, fail-safe solution that detects occupancy, controls indicators, and automates utilities with minimal components. Let’s…
In the previous article, we covered how the I2S protocol works, from its three wires (BCLK, WS, SD) to the clock arithmetic that ties them together. We also looked at the one-bit delay that trips everyone up and the controller/target and transmitter/receiver roles. That’s the foundation for everything that follows. In case you could use…
Star Wars melody from "How to play musical notes and melody tunes on Arduino."
SMART SECURITY SYSTEM USING RPI
Automatic Wash Basin Tap Controller
Solar
Ping Pong Game
The central test is whether a robot’s safeguards still protect people when the information they rely on is manipulated. Safety and security teams can begin by tracing the inputs behind each protective decision, challenging them, and revisiting the evidence as the robot changes. They can start with these five questions: What does each protective function…
Voice control has become so routine that it’s easy to forget how much happens between a spoken command and the response. Say “turn on the light” to a smart speaker, and a moment later the light comes on. It feels like the device heard you. It didn’t. What it received was a list of numbers,…
Welcome to the Engineering Deep Dive: Highlights & Technical Questionnaire This collection outlines key engineering challenges on our Electro-tech-online forums across multiple domains—including power electronics, motor selection, PCB manufacturing rules, circuit simulation, and RF…
UM 3561 is an excellent Siren generator IC widely used in Toy applications and Surveillance systems to generate different tones. It a ROM (Read Only Memory) IC which can be operated in 2 pen cells and it functions normally down to 2.4 volts. Using only a few components, it is very easy to construct a…
