dB Detection Module with Serial Output

The HH_06.03 dB Detection Module is a compact and efficient audio level sensing device designed for precise sound pressure level (SPL) measurement in the range of 40 to 130 dB. It features an A-weighted filter for human-ear-like sensitivity and supports a frequency range of 50 Hz to 20 kHz, making it suitable for environmental noise monitoring, industrial applications, and smart automation systems. With a resolution of 0.1 dB and compact dimensions (PCB size: 47.12 × 28.00 mm), the HH_06.03 offers a precise, plug-and-play solution for sound level measurement in real-time monitoring systems.

The HH_06.03 Audio Module is a Microphone Module with Serial Output that uses an active communication protocol—sending data automatically without a command. It transmits signal data via Modbus over TTL serial, not RS232.

To connect the HH_06.03 Microphone Module to a computer, a TTL to RS232 converter must be used first, as the module’s interface is TTL and not directly compatible with RS232.

Applications of the HH_06.03 Microphone Module

1. Audio systems
2. Sound control systems

Specifications of the HH_06.03 Microphone Module

1. Module Model: HH_06.03
2. Function: Sound level detection
3. Operating Voltage: 5V DC (constant)
4. Operating Current: 29 mA at 5V
5. Communication Interface: Serial TTL
6. Measurement Range: 50 to 120 dB
7. Frequency Response: 50 Hz to 20 kHz
8. Resolution: 0.1dB
9. Frame Interval: 500 ms
10. PCB Dimensions: 47 x 28 mm