Sound Sense


The Sound Sense is an electronics kit that detects sound and produces a resulting digital and analogue output. This kit is excellent for makers needing to add a sound-sensing module to their design, and ideal for beginners looking to get some soldering practice.

Availability: 17 in stock (can be backordered) SKU: SOUND-SENSE Categories: , , , , , , Tags: , , ,


Sound Sense Kit

The Sound Sense is a small sound-sending module in kit form which converts sound waves into an electric signal. Powered by voltages between 3V to 5.5V, the Sound Sense provides two outputs; one digital and one analogue.

The digital output is connected to a comparator that outputs a logic signal when the sound level crosses a threshold defined by the potentiometer. This makes the digital output ideal for applications that only need to detect the presence of sound. The analogue output is raw audio output from the microphone, but because this kit uses a single supply voltage, only half of the waveform is preserved.

Instructions / Documentation

Product specifics

  • Component Count: 12
  • Operating Voltage: 3V to 5.5V
  • Output Voltage (Digital): VCC – 1.7V
  • Operating Frequency: N/A
  • Dimensions (PCB): 40mm x 20mm
  • Mounting Holes: Yes
  • Prebuilt: No – Kit form
  • Batteries Not Included

Included in this kit

  • 1 x LM358
  • 1 x 8 DIP Socket
  • 1 x Electret Microphone
  • 1 x 1KΩ Resistor
  • 2 x 10KΩ Resistor
  • 1 x 47KΩ Resistor
  • 1 x 100nF Capacitor
  • 1 x 10µF Capacitor
  • 1 x 10KΩ Potentiometer
  • 1 x 1N4148
  • 1 x 4-Way Socket


The Sound Sense is ideal for those creating circuits that need to detect sound, with one common example being clapper switches. The onboard potentiometer can be used to change the sensitivity of the microphone (i.e., a loud clap), and a second circuit can be used to identify claps from other loud sounds. This also means that the Sound Sense can be used as a sound monitor in security circuits that listen out for unexpected noises (i.e., people breaking into a home via smashing windows). At the same time, the Sound Sense can also detect wind, and this can enable the sensor to be used as a basic air flow detector. Finally, the analogue output of the Sound Sense can be amplified to be played on a speaker, but the single-rail supply of this kit means that only half the waveform is preserved.


Note that product specifics such as output frequency depend on the tolerance of the components. The numbers provided here are an approximation only. Also take note that the estimated delivery is not guaranteed (unless special delivery is chosen) and free delivery has a maximum waiting time of two weeks. Any product that is returned which is built using lead solder is ineligible for a refund. 

All parts sold by MitchElectronics are compliant with RoHS and REACH directives which ensure that they can be used in commercial environments as well as complying with environmental laws.