Qorvo® has introduced the QPX0252, a four-channel X-band beamformer IC operating from 7.9 to 12 GHz for active electronically scanned array radar. The device provides transmit output to drive compatible Qorvo front-end modules directly, supports low-noise and high-linearity receive operation and integrates transmit, receive and control functions to reduce RF content in the antenna array.…
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…
This tutorial series covers embedded system design using MicroPython and the NODEMCU development board. Each article covers embedded programming with MicroPython and interfacing different I/O devices, sensors, and actuators with the NODEMCU board. Previous tutorials covered different types of sensors, including analog, digital, and advanced sensors, as well as actuators such as dc and servo…
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…
If you’ve ever scrolled through an ESP32 datasheet, you’ve probably spotted the term I2S sitting among the peripherals. You might have reasonably assumed it was a typo for I2C. It isn’t. The “I2” in both names does stand for the same thing (Inter-Integrated Circuit), but that’s where the resemblance ends. I2C is a slow, addressable,…
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…
