The Haitronic HR0240 sound sensor detects the presence of sound or sounds at a specific frequency, without identifying their intensity. Sensitivity is adjusted using the blue digital potentiometer. When the sound level exceeds the set threshold, the digital OUT output goes low; when it is below the threshold, it goes high.
The output can be connected directly to a microcontroller to detect the signal level, or to a relay module to create a sound-activated switch. The board features a mounting hole and VCC, GND, and OUT terminals.
- Type: Sound
- Operating voltage: 3–5 V
- Output type: Digital switch
- Sensitivity adjustment: Digital potentiometer
- Board dimensions: 3.2 × 1.7 cm
- Terminals: VCC, GND, OUT
- Mounting hole: Yes
- Type
- Audio
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.