Sound Whistle Tone Frequency Picker LM567

$1.70

Description

Adjustable Frequency Identification voice module, provided example at 1KHz voice recognition, only 1KHz frequency sound to trigger the LED, sound of the other frequencies will be filtered out.

Features:

  • On-board frequency discriminator can identify the audio signal of a fixed frequency.
  • Onboard amplifier, microphone sound 100 times magnification, and the output from the connector pins.
  • The input frequency range of 300Hz to 20KHz. (20Hz – 20Khz is audible for human ear)
  • Distance :0-5m, this parameter depends on the decibels of the sound source.
  • 5 V DC power supply;
  • The frequency discriminator identify the frequency output of the frequency discriminator.
  • Set up another to set the frequency, the output of the switch.
  • Precision multi-turn potentiometer to adjust the frequency.
  • Compact size: 38 X 18mm, saving space.
  • 3mm screw holes for easy installation.

Documentation on this page.

Additional information

Weight 0.007 kg

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