The circuit provides a simple illustration of a door phone intercom system having a two-way communication using the features of LM386 amplifier. Intercom – short for intercommunication, is an ...

As new communities grow across California, automatic gates Bay Area projects are changing the way people think about safety and convenience. Smart technology is now part of everyday living, and smart ...

A security research firm says it discovered an “easily” exploitable vulnerability in a door entry security system used in government buildings and apartment complexes, but warns that the vulnerability ...