Switches

A simple piano doorbell that replaces the usual chime with real piano notes was demonstrated in a recent project published by Arpan Mondal. The system combines microcontroller-based control with audio playback to create an interactive doorbell.

At its core is an ESP32-S3, which takes inputs from 5 keys styled like a tiny piano. Each key is built using micro limit switches and connected…

Microchip Technology introduces a new PCI100x family of Switchtec PCIe Gen 4.0 switches, to meet the needs of high-bandwidth data transfer for device communication. It will be useful for the automotive, industrial, and data center systems for more seamless communication.

The PCI1005 expands a single PCIe port up to 8 endpoints, and…

One of the simple yet interesting connection diagrams that young engineers learn in their lab is the staircase lighting setup. Perhaps most of us might have already used it without paying much attention to how it works. Staircase lighting at home or at any other place, for that matter, is normally done with something called a two-way switch. 

Digi-Key Electronics has announced that it has expanded its Marketplace product portfolio to include a worldwide distribution partnership with LogiSwitch, a company that provides debounced switches with their adaptive NoBounce technology, and VisiShield technologies to simplify Arduino breadboard challenges.

Switch bounce is a problem faced by many…

Features low ON-state resistance and high ON-state current ratings for easier use

Toshiba introduced two new high current photorelays, fabricated using the latest U-MOS IX semiconductor process. The new “TLP3553A” and “TLP3555A” devices has OFF-state output terminal voltage ratings of 30V and 60V, and ON-state…