RAK18032 WisBlock Audio Ultrasonic Microphone Module

Thank you for choosing RAK18032 WisBlock Audio Ultrasonic Microphone Module in your awesome IoT project! 🎉 To help you get started, we have provided you with all the necessary documentation for your product.

• RAK18032 Quick Start Guide
• Datasheet
• WisBlock Quick Start Guide
• WisBlock Source Code Repository
• RAK18032 3D Model
• 40-Pin Male Connector 3D File
• WisBlock IO Tutorial

Product Description

RAK18032 is a WisBlock Audio that extends the WisBlock system based on the SPH0655LM4H-1 module from Knowles. This module is an ultrasonic microphone module, where the analog audio is converted to a Pulse Density Modulation (PDM) output. When used with other WisBlock modules, you can achieve rich applications such as audio monitoring, recording, and even voice control functions.

Product Features

• Module Specifications

  • Voltage supply: 3.3 V ~ 3.6 V
  • Current consumption: 40 uA ~ 690 uA
  • Chipset: SPH0655LM4H-1
  • Ultrasonic PDM Microphone
  • Left or right channel selection
  • Flat frequency response: 20 kHz - 80 kHz
  • Low distortion
  • High SNR
  • Bottom port
  • Omnidirectional sensitivity

• Module Size

  • 15 x 25 mm

Prerequisites

To use a RAK18032, you need at least a WisBlock Base to plug the module in. The WisBlock Base provides power supply to the RAK18032 module. Furthermore, you need a WisBlock Core module to use the RAK18032 module.

warning

Make sure to fix the module with screws to ensure proper function.