RAK18030 WisBlock Audio PDM Microphone Module

Thank you for choosing RAK18030 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.

• RAK18030 Quick Start Guide
• Datasheet
• WisBlock Quick Start Guide
• WisBlock Source Code Repository
• RAK18030 3D Model
• 40-Pin Male Connector 3D File
• WisBlock IO Tutorial

Product Description

RAK18030 is a WisBlock Audio that extends the WisBlock system based on the SPK0641HT4H-1 module from Knowles. 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: 26 uA ~ 800 uA
  • Chipset: SPK0641HT4H-1
  • PDM Microphone
  • Left or Right Channel Selection
  • Flat frequency response: 20  - 20,000 Hz
  • Low distortion of 2.2% at 115 dB SPL
  • 64.5 dB(A) Signal-to-Noise Ratio
  • Omnidirectional sensitivity

• Module Size

  • 15 x 25 mm

Prerequisites

To use a RAK18030, you need at least a WisBlock Base to plug the module in. WisBlock Base provides a power supply to the RAK18030 module. Furthermore, you need a WisBlock Core module to use the RAK18030 module.

warning

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