RAK18031 WisBlock Audio PDM Microphone Module

Thank you for choosing RAK18031 WisBlock Audio PDM Microphone Module in your awesome IoT project! 🎉 To help you get started, we have provided you with all the necessary documentation for your product.

• RAK18031 Quick Start Guide
• Datasheet
• WisBlock Quick Start Guide
• WisBlock Source Code Repository
• RAK18031 3D Model
• 40-Pin Male Connector 3D File
• WisBlock IO Tutorial

Product Description

RAK18031 is a WisBlock Audio that extends the WisBlock system based on the MP34DT06JTR module from ST. This module is a mono PDM 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.

NOTE

• RAK18030 and RAK18031 are similar in design, but only with different microphone chips.

Product Features

• Sensor Specifications

  • Voltage supply: 3.3 V ~ 3.6 V
  • Current consumption: 5 uA ~ 650 uA
  • Chipset: MP34DT06JTR
  • PDM Microphone
  • Left or Right Channel Selection
  • Flat frequency response: 100 Hz - 10,000 Hz
  • Low distortion of 6% at 120 dB SPL
  • 64 dB(A) Signal-to-Noise Ratio
  • Omnidirectional sensitivity

• Module Size

  • 15 x 25 mm

Prerequisites

To use a RAK18031, you need at least a WisBlock Base to plug the module in. The WisBlock Base provides power supply to the RAK18031 module. Furthermore, you need a WisBlock Core module to use the RAK18031 module.

warning

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