How to Build a Circuit to Detect Specific Frequency and Trigger Another Device

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#1 21670235 26 Oct 2013 08:15

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #1
21670235 26 Oct 2013 08:15

Hi there,

Thank you for reading my question. My request is to find out how to build a circuit which detects certain frequency and at the same time triggers another device.

All response is greatly appreciated.
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#2 21670236 26 Oct 2013 08:38

DAVID CUTHBERT DAVID CUTHBERT

Anonymous

Post #2
21670236 26 Oct 2013 08:38

What is the device it triggers?
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#3 21670237 26 Oct 2013 08:50

Frank Luiss Frank Luiss

Anonymous

Post #3
21670237 26 Oct 2013 08:50

Should it describe first device article and then find it.
Thanks!!!!
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#4 21670238 26 Oct 2013 08:53

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #4
21670238 26 Oct 2013 08:53

Thanks but sorry I dont get what you are saying.
#5 21670239 26 Oct 2013 08:54

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #5
21670239 26 Oct 2013 08:54

Hi there,

Thanks for the reply. I want to build a circuit that detects a for say 18kHz tone and upon detecting it, it triggers an LED.
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#6 21670240 26 Oct 2013 08:56

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #6
21670240 26 Oct 2013 08:56

Hi David,

Thanks for the reply. I want to build a circuit that detects a for say 18kHz tone and upon detecting it, it triggers an LED.
#7 21670241 26 Oct 2013 11:21

DAVID CUTHBERT DAVID CUTHBERT

Anonymous

Post #7
21670241 26 Oct 2013 11:21

I hope you mean LED and not IED.
#8 21670242 26 Oct 2013 22:39

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #8
21670242 26 Oct 2013 22:39

Yeap...LED.
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Topic summary

The discussion focuses on designing a circuit capable of detecting a specific frequency, exemplified by an 18 kHz tone, and subsequently triggering another device, specifically an LED. Clarification was sought regarding the triggered device, confirming it as an LED rather than any other device. The core technical challenge involves frequency detection and output activation, implying the use of frequency-selective components or filters and a triggering mechanism to drive the LED upon detection of the target frequency.
Summary generated by the language model.

How to Build a Circuit to Detect Specific Frequency and Trigger Another Device

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Topic summary