After more than fifty years of continuous production in bipolar and fully half that in CMOS, there’s really neither room nor reason to question the value and versatility of the venerable 555 analog timer...

The pages of Design Ideas have recently been awash in a veritable cascade of designs for variable frequency oscillators with frequency ranges tunable over multiple decades...

A tiny DC to DC buck converter board is useful for many applications, especially if it could deliver currents up to 3 A...

Vishay Intertechnology introduced a new compact, ready-to-use linear position sensor designed for high accuracy performance in demanding environments...

The schematic is rather trivial. A voltage regulator brings down a supply voltage (which might be from a car battery) to 5 V. An additional built-up voltage regulator generates an adjustable voltage of 1.95 V...

A while back I was challenged by a visitor to the website. He needed a very loud sweeping siren type audio sound generator powered by 3 V...

STMicroelectronics announced the Stellar P3E, the first automotive microcontroller with built-in AI acceleration for automotive edge intelligence...

This project is an ultrasonic range finder built using the RP2040 Zero board and a 3.2-inch TFT display. It utilizes the RCWL-1655 sensor, which operates similarly to the popular HC-SR04, to measure distances ranging from 20 cm to 300 cm...

It is well known that a 555 timer in astable mode can be frequency modulated by applying a control voltage to pin 5...

In this Design Idea, the classic Schmitt-trigger-based RC oscillator is “hacked” and analyzed using the simulation software QSPICE...