PDM Ultrasonic Microphone Sensor Knowles SPH0655LM4H-1
The RAK18032 is a mono PDM microphone module based on the Knowles SPH0655LM4H-1 which extends the WisBlock system with sound sensing capability.

Details
- Category
- Accessories
- Catalog status
- Catalog sync 2026-06-01
Product Summary
The RAK18032 is a mono PDM microphone module based on the Knowles SPH0655LM4H-1 which extends the WisBlock system with sound sensing capability.
Why It Matters
The RAK18032 is a mono PDM microphone module based on the Knowles SPH0655LM4H-1 which extends the WisBlock system with sound sensing capability.
Editorial narrative
The RAK18032 is a mono PDM microphone module based on the Knowles SPH0655LM4H-1 which extends the WisBlock system with sound sensing capability. The RAK18032 is a digital microphone module that converts analog audio to digital PDM signals. It supports left and right channels through a GPIO signal. The RAK18032 can be used in applications such as audio sensing and audio recording. Features PDM microphone Frequency Response 20 - 80kHz Low Distortion of 0.2% at 94dB SPL 64 dB(A) signal-to-noise ratio Omnidirectional sensitivity Size 15mmx 25mm Package Inclusion 1 pc RAK18032 3 pc M1.2x4 Screw Documentation RAK18032 Datasheet Build Your Own Voice Recognition Device Using Wisblock Audio RAK18032 3D model WisBlock Quick Start Guide WisBlock Source Code Repository 40-Pin Male Connector 3D File WisBlock IO Tutorial
Facets
- Last verified: 2026-06-01
Similar Products
About the Vendor
Vendor Name
store.rakwireless.com
Verification
Source: editorial review (2026-06-01).
- Prices and availability can change at vendor checkout.
- Technical claims may reflect vendor language unless editorially verified.
- Outbound links are provided for independent verification and comparison.
Confidence legend: ✓ editor-confirmed, ● vendor claim, ? inferred from product description.
Affiliate + editorial disclosure

