The circuit was designed to illustrate the operation of an electronic keypad to be utilized in the burglar alarm system by having five keys as the security syntax. The circuit was designed to ...

Napco's Gemini Virtual Keypad is a mirror-image remote control keypad on a web-based interface, fully-functional and accessible online from any web browser, PC or smartphone anywhere in the world.

If you need high-security intrusion detection, not all keypads are created equal. As you’re entering your unique PIN code at some keypads, for instance, a favorite technique of bad guys is to “steal” ...

This series of monthly teardowns was started in early 2018 as an experiment, and since you fine folks keep reading them, I keep making them. But in truth, finding a new and interesting gadget every ...