Sound Frequency Sensor Module Sound Activation LM567 aktifasi suara

Sound Frequency Sensor Module Sound Activation LM567
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 (can damage ic)
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.
How to use
1. Power up, power LED up
2. Choose and use a fixed voice source, which is the one for identifying, keep it continuously output.
3. adjust adjustable resistor, until indication LED on
4. turn off sound source, Signal indicating LED off, now the calibrating is finish.
We suggest to use the software called audioSCSI which can output a fixed frequency to your computer.