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Category: COTM

Robotics | IoT

How-To: Ball-in-Cage Switch

A ball-in-cage switch is a mechanical alarm switch that works on an ingenious principle. It has a single relatively unstable “open” position, in which a metal ball rests in a small divot in an insulating base, inside a cage made from two U-…

Switches Made Simple

In this video, Collin gives a comprehensive overview of the humble switch, demonstrating switches of the toggle, DIP, slide, rocker, rotary, and momentary variety, and explains the difference between SPST and DPDT switches in the process.Read the full …

How-To: Forrest Mims Puff Switch

A puff switch is operated by blowing into a tube. They are useful in applications in which the user, for whatever reason, cannot be expected to activate a switch by more conventional means. The use of the term “puff switch” implies a switch intended to…

Component of the Month: The Switch

Switches are a fundamental electronic component, they come in a variety of styles and configurations, and they have many different uses. From turning on a light to controlling a robotic arm, switches are the ideal control mechanism. At the physical lay…

Gear Up for Component of the Month

This month we’re debuting a new series, Component of the Month. Just as our Skill Builders explore core maker skills in electronics, woodworking, metalworking, and other disciplines, Component of the Month will survey fundamental electronic component…