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DiscoverCircuits.com -- Hobby Corner
Last Updated on:
Monday, March 26, 2012 06:48 AM
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Front Desk Service Beeper Circuit
designed by David Johnson, P.E. |
| Often a simple mechanical
bell is used by a customer at a store or hotel lobby, which when activated alerts
the personnel that service is requested. |
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This device functions like a lobby desk service
request bell. A short beep is sounded whenever the large pushbutton on top of
the device is pressed. Once pressed, the device will not make another beep
until at least 2 minutes of time has elapsed. This prevents impatient customers from
ringing the bell over and over. The hobby circuit below performs the same
function electronically. It also contains a timer circuit, so the service
beeper can only be activated once every 30 seconds or so. This prevents some
impatient person from ringing multiple times.
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Click on Drawing Below to view PDF version of Schematic |
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eMail David A.
Johnson, P.E. about this circuit |
