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DiscoverCircuits.com -- Hobby Corner
Last Updated on:
Friday, December 29, 2017 05:52 AM
Hobby Circuits List
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Beeper Circuits |
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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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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 |
