BMV36T001 Audio Recording and Playback Expansion Board

Introduction

This product is an expansion board used for recording and broadcasting, built-in with 128Mbit SPI Flash memory, with a maximum recording time of up to 517 seconds. The board has a MicroSD interface, allowing you to directly save audio sources to the SD card for playback, which is very convenient! This product is designed in the form of an expansion board, making it easy for you to directly plug it into BMduino-UNO, BM53A367A, or Arduino UNO. It is suitable for voice playback products, phonographs, and other applications.

The product supports two modes: recording/replay mode and playback mode. When selecting the recording/replay mode, the recorded audio files will be stored in the built-in Flash memory. In playback mode, you need to pre-load the audio files into the MicroSD card and insert the MicroSD card into the board’s MicroSD interface to play.

The board has a multifunctional button that can control five directions in standalone mode: up, down, left, right, and center, and can achieve different functions through short or long presses (pressing for more than 3 seconds).

BMV36T001 Audio Recording and Playback Expansion Board

If you want to play audio files stored on the MicroSD card, you need to use the network mode.

Features

Operating Voltage: 5V
Operating Current: 326mA @5V
Operating Mode: Standalone Mode (default), Network Mode
Playback Mode: Recording/Replay Mode, Broadcasting Mode (MicroSD)
Audio Recording Method: Built-in Microphone/External Microphone (Audio Input Interface) – Built-in Microphone Sensitivity -36dB
SPI Flash memory: 128Mbit– Maximum Recording Time: 517 seconds- Number of Recordings: 255 (Total Recording Time < 517 seconds)
Recording Resolution: 16-bit PCM
Recording Sampling Rate: 16kHz
Storage Method: 1. MicroSD Card: Stores mono 16kHz 16-bit WAV audio files 2. SPI Flash memory: Stores recordings
Has a speaker interface, can be used with an 8Ω / 2W speaker
Communication Interface: SPI
Dimensions: 67 x 53.34 x 23 mm
Net Weight: 116g (including speaker)
Product Includes: BMV36T001 x1, Speaker x1