Product | Audio Module | MP3 SD Card Sound Module With Trumpet Kit
MP3 SD Card Sound Module With Trumpet Kit
MP3 SD Card Sound Module With Trumpet Kit
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MP3 SD Card Sound Module With Trumpet Kit


1、Click to see more detail information of MP3 SD Card Sound Module

Please notice that:  this Mp3 sound module version of V1.1 is updated version of V1.0 and have all of the function of V1.0.

And the V1.1 has a delay by default, but if you don't need the delay, you can remove the delay in a very easy way as below : "please don't detest the signal of "busy control", then there is no any delay, it is very easy to change in the code".

Product Features :

1、Support maximum 1G SD card

2、Support 4Bit ADPCM format

3、Support auto-recognize voice file

4、Support AD4 with audio sampling rate of 6KHz ~ 32KHz and 36KHz

5、Support WAV with audio sampling rate of 6KHz ~ 32KHz

6、16bitDAC and PWM audio output

7、Maximum store up to 512 voice segment

8、Two module types of WTV020-SD-20S and WTV020-SD-16P

9、Support Micro-processor and key control

10、Support call and play of any voice pieces

11、Auto-save operation data while power-down

12、Directly download voice file to SD card without any auxiliary software

13、Support Files combination play, including mute combination

14、Copy files to SD card from PC

15、Operating voltage : DC 2.7~ 3.5V

16、Static Current : 16uA (while without SD card)

Product Overview :

WTV020-SD module is a voice-rewritable voice modules with maximum storage capacity up to 1GB SD card memory. It supports WAV and AD4 audio format.

WTV020-SD voice module adopts WTV020SD-20S as core procesing chip. It supports MP3 control mode、key control models (3-voice and 5-voice)、loop play mode and two-line serial control mode . Control mode is set while producing, which can not be changed through configuring.

1)MP3 control mode: play / stop, next, last, volume +, volume - and so on.

2)Key control mode (3 voice): one key to trigger a voice, can play 3 pieces of voice and adjust volume. All keys are default as no duplicate trigger for pulses.

3)Key control mode (5 voice): Three sub-control methods, 1. Key can not be duplicate-triggered by pulse; 2. All keys are play / stop trigger (No single recycled); 3.All keys are Play/Stop (single can be recycled).

4)Loop play mode: After powered on, no need to trigger any I / O port, directly play all the voice in SD card, with functions to record playing points while power off, from which it plays while powered on again. Two sub-control modes, 1. P04 has pulse-triggered play/pause function; 2. P05 has level-triggered play/pause function.

5)Two-line serial control mode: controlled by MCU clock via CLK and DI data lines. Free to play voice at any address. In this mode, it has voice combination play function.

Audio content updates directly to SD card on the PC. The module supports FAT file system. Support AD4 of 6KHz ~ 32KHz, 36KHz sampling rate and WAV audio of 6KHz ~ 16KHz sampling rate.

Notice : Please choose the mode you want to order and we will ship for you as you require and modules of Mp3 mode will be delivered by default if there is no special requirement.

Applications :

This module can be used in automobile( car bug, parking radar, GPS navigation system), Intelligent home system, house bug, Voice medical devices, household appliances(induction cooker, rice cooker, micro-wave oven), game machines, learning tools(talking book), Intelligent traffic facilities(toll gate, parking lot), communications equipment( telephone), industrial control( elevator ), toys and so on.

Click to download manual

Click here to get the chip's datasheet

2、Click to see detail information of Trumpet

Description :

This is the Trumpet - 8ohm - 0.5W as below :

The resistance is : 8 ohm

The rate of work is : 0.5W

The diameter is about : 40mm to 50mm



Application :


2、Mini Car

3、Other equipment which need loudspeaker.


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