Skip to the beginning of the images gallery

Record and Playback Shield BMV36T001

US$10.00

In stock

Quantity

48 pieces

Product ID

BMV36T001

The product is a shield designed for recording and playback, featuring a built-in 128Mbit SPI Flash memory with a maximum recording duration of up to 517 seconds. The product offers a MicroSD interface, allowing you to directly store audio files on a MicroSD card for playback, providing high convenience.
The shield type makes the product easy to insert into the BMduino-UNO BM53A367A or Arduino UNO for use. It is suitable for applications such as voice playback devices and phonographs.

PRODUCT FEATURES

Operating voltage: 5V
Operating current: 326mA @5V
Operation mode: stand-alone mode (default), networking mode
Play mode: recording / playback mode, broadcast mode (MicroSD)
Sounds recording method: on-board microphone, external microphone (audio input)
- Sensitivity of on-board microphone: -36dB
SPI Flash memory: 128Mbit
- Maximum recording duration: 517 seconds
- Recording number: 255 (recording duration < 517 seconds)
Recording resolution: 16-bit PCM
Recording sampling rate: 16kHz
Storage method:
1. MicroSD: stores mono 16kHz 16-bit WAV files
2. SPI Flash memory: stores recordings
Includes speaker interface, can use with 8Ω/2W speaker
Interface: SPI
Shield dimension: 67 x 53.34 x 23 mm
Shield net weight: 116g (includes the speaker)
Product includes: BMV36T001 x1, speaker x1

DESCRIPTION

The product offers two play modes: recording/playback mode and broadcast mode. When using recording/playback mode, the recorded files are stored in the built-in Flash memory. If users select broadcast mode, audio files are required to be pre-loaded onto a MicroSD card, and then users need to insert the card into the MicroSD interface on the product for playback.

In stand-alone mode, the on-board multi-functional button can be controlled in five directions: up, down, left, right, and center. You can achieve different functions by either short-pressing or long-pressing (holding for more than 3 seconds) the button.

DIRECTION	SHORT-PRESSING	LONG-PRESSING
LEFT	Play the previous recording	―
RIGHT	Play the next recording	―
UP	Volume + (Level 1~14, default: 6)	―
DOWN	Volume - (Level 1~14, default: 6)	―
CENTER	Start/Stop recording	Erase all the recordings

If you would like to play the audio stored on the MicroSD card, you need to use networking mode.

HARDWARE OVERVIEW

PIN DESCRIPTION

Other pins are not used.

Pin name	BM53A367A pin	Function
IOREF	IOREF	Logic reference voltage pin
RESET	RESET	Reset the development board
5V	5V	Power supply: 5V
GND	GND	Ground
SS2	~D4	SPI2 slave select pin (SD card)
SCK2	~D5	SPI2 clock line (SD card)
MOSI2	~D6	SPI2 master output and slave input data line (SD card)
MISO2	D7	SPI2 master input and slave output data line (SD card)
D/C	~D8	SPI bus data type switching ⬥ High: WAV audio data transmission ⬥ Low: protocol commands transmission
REQ	~D9	Request for audio data when playing audio from the SD card
SS	~D10	SPI slave select pin (BMV36T001)
MOSI	~D11	SPI master output and slave input data line (BMV36T001)
MISO	~D12	SPI master input and slave output data line (BMV36T001)
SCK	~D13	SPI clock line (BMV36T001)

COMPARISON

	BMV31T001	BMV36T001
MCU	HT68FV022	HT66FV240
Operating voltage	5V	5V
Operating current	195mA @5V	326mA @5V
SPI Flash	16Mbit	128Mbit
Audio duration (Max.)	⬥ PCM: 41 seconds ⬥ u-law: 125 seconds ⬥ ADPCM: 400 seconds	517 seconds
Recording supported	X	O
Speaker interface	O	O
Development platform	O	X
Supported audio file format	⬥ MP3 ⬥ 16-bit mono WAV	16-bit mono WAV
MicroSD card interface	X	O
Communication interface	⬥ Playback: One-wire ⬥ Updating: SPI	SPI