SSL1027-dat

Pin Configuration

  • GND - GND
  • VCC - VCC, 3-12V, DC, use 5V directly is fine
  • OUT - output, when detect certain frequency output TTL low
  • FIN - Identifier frequency input, this can input the frequency for identifying, be aware the amplification should lower 0.2V
  • FOUT - Identifier frequency output pin, this pin output the identifying frequency which is set
  • ROUT - Amplifier real time output pin, detect audio amplifier signal real time output.

Note:

  • make sure VCC and GND is not reverse
  • Use adjust resistor, make sure the indicating LED off and then start to use, since there is noise in the environment, so you have to set the noise to a small frequency area.

Schematic

Legacy wiki page

https://w.electrodragon.com/w/LM567

Demo

  • https://twitter.com/electro_phoenix/status/1497890295253389314
  • https://t.me/electrodragon3/215

Old Logs

https://twitter.com/electro_phoenix/status/1001750412347650048

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