There are several other quiz buzzer projects kicking around Hackaday if you’re interested. One of our favorites is this system which uses plastic bowls as the buttons.

Long Range Coverage: This wireless paging system allows you to reach customers or staff up to 984 feet away with beeps, vibrations and flashing alerts on 10 pagers and beepers. Easy to use ...

The man selling it swore the system worked perfectly ... this size for user convenience rather than necessity. Each pager has a buzzer, array of LEDs, and a small pager motor at its disposal ...

Power supply unit 110-240V input, 12V output to power whole system,can reduce the load of access controller, save wiring to reduce the hidden trouble.

Integrating an instructional audio system with a school’s existing communications infrastructure gives teachers the ability ...

Paging is a method of delivering a voice or data message, via a public communications system or radio signal, to a person whose exact whereabouts are typically unknown by the message sender. Users ...

The issue has to do with pagers used with the city and county’s digital radio system for police, firefighters and first responders. The areas that are not receiving pager notifications are around ...

The agents who built the pagers designed a battery that concealed ... The website gave an address in Hong Kong for a company called Apollo Systems HK. No company by that name exists at the address ...

Commissions do not affect our editors' opinions or evaluations. A human resource information system (HRIS) helps companies manage the administration of their people. These systems are used by HR ...

Need a new idea to keep kids entertained? Try stargazing. Free learning activities and videos about the solar system Free learning activities and videos about the solar system Free learning ...

A video promoting the AR-924 pager uploaded to the Apollo Systems HK YouTube account YouTube account on December 13, 2022. A video promoting the AR-924 pager posted to the Apollo Systems HK ...