The Sound Detection Module Sensor uses an LM393 comparator IC with pins, detecting sound within 0.5 metre, operating from 3.3V to 5V, providing both digital and analog output simultaneously. While the DO pin triggers HIGH or LOW based on a threshold crossing, this sound sensor’s AO pin continuously outputs an analog voltage proportional to the ambient sound level — connecting it to an Arduino analog pin enables basic sound-level monitoring, simple VU meter displays, or logging relative loudness over time without any additional components.
The sound sensor price reflects a module with an onboard sensitivity trimmer that adjusts how loud a sound needs to be before the DO threshold fires — in a quiet room this trimmer may need to be wound toward higher sensitivity, while in a noisy environment reducing sensitivity prevents constant false triggers. This sound sensor arduino’s omnidirectional microphone capsule still benefits from physical positioning — pointing the capsule side of the module toward the primary sound source noticeably improves consistent detection within its 0.5 metre induction distance.
this sound sensor module’s AO output reflects raw amplified microphone signal rather than a calibrated dB measurement, so projects needing absolute sound level readings in decibels require a dedicated SPL meter sensor instead of this general-purpose module. Available from StemVolt, this module is ideal for hobbyists, and enthusiast building orientation-independent shock detection systems and standalone vibration alarm projects.
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Features:
- AO pin enables continuous analog sound-level reading for VU meters
- DO threshold trigger adjustable via onboard sensitivity trimmer
- 0.5 metre pickup range for close-proximity sound detection
- Dual output available simultaneously for versatile application use
Technical specifications:
Applications:
- Sound Sensor used for Arduino VU meter sound level display build
- Security system sound sensor for noise threshold alarm
- Music project uses for reactive LED visualizer
- IoT node uses sound sensor price for ambient noise logging circuit
Package includes:
- 1 x Sound Detection Module Sensor
Tara Bhasin –
Genuine quality product
Saisha Kapoor –
Received this sound detection sensor from best kit store in Rajasthan, sound response was accurate and consistent, making it ideal for my arduino-based automation project.
Siya Goel –
Perfect condition received
Madhu Bakshi –
It provides reliable sound and clap detection, making it ideal for DIY projects, robotics applications, automation systems, and arduino-based experiments
Vivaan Marwah –
Happy with purchase
Kian Grover –
Secure payment gateway and after sale support ensured a smooth purchasing experience, while the module delivered responsive sound sensing performance for various electronics projects