Voice playback module MP3 prompter triggers one broadcast once voice module announcer

baby demo video:

http://v.youku.com/v_show/id_XMTI3MjI4MjIxNg==.html

original product, support custom modification function and trigger playback mode

august 15, 2017 This module is upgraded to the new version

on March 1, 2021, this module was upgraded to a new version with 63 new coding modes. The norms remain unchanged and the functions of the old version are compatible.

on October 9, 2021, some circuit layouts were modified; new functions of non-interruptible and long-press playback modes were added.

Name M3 voice playback module

model: YS-M3

sizes:4x4.1x0.9cm

power supply: DC 5V 0.5A (3.5-5.3V)

standby current:28MA

working current: greater than 80MA (specifically related to the speaker and sound size)

trigger Port:9

trigger song: direct trigger 9, microcontroller code trigger 63

working mode: single cycle, single no loop, no interruption and background music mode

trigger Level: low level (below 0.8V)

horn parameters:0-3W 4-8 ohm (volume adjustable)

maximum memory supported:32G

support playback format: MP3, WAV

difference: this module and the shop's M3T module sizes are basically the same, 2 of the trigger level is different, this is a low-level trigger.

Link: https://pan.baidu.com/s/1Bn7IHPG2Fe3djkbbHvOmjw
extraction code: 1234

special application skills:

1. How many songs can be played? How to determine the order?

Answer: Direct port triggering can trigger 9 songs and single chip microcomputer coding control can trigger 63 songs. Determine the trigger sequence according to the MP3 naming number in folder 01, for example, the first song is 001.MP3

2. Can you pick up the loudspeaker? Can you pick up the stereo?

Answer: The maximum power of directly connected horn is 3w 4-8R; You can connect the sound or power amplifier to amplify the sound so as to connect a larger horn.

3. How to trigger port playback?

Answer: The trigger function of 9 ports A1--A9 play the corresponding song when the trigger port touches the GND (ground) port.

4, how to pause and the previous song, the next song?

Answer: There is no such function.

5. What is the use of CN1 and BY feet?

Answer: CN1 the foot is used to trigger the playback of the 10th song alone. The playback process can not be interrupted, often used to connect sensing, to avoid repeated triggering and repeated interruption of playback; BY is the working state output, which outputs a high level when playing and keeps a low level by default when not playing.. The specific purpose depends on personal use. Use it when you need it, and leave it empty when you don't need it or don't know how to use it!

6. Can you play horror sounds, personal recordings and some conversations?

Answer: No problem. This is an MP3 playback module. As long as MP3 files or WAV files are stored, the corresponding content can be played. There is no difference in limiting specific sounds!

7. Why does it stop playing automatically after 1-2s?

Answer: This kind of fault is that the reset is stopped due to insufficient instantaneous current supply of the externally provided power supply. Therefore, during use, the customer is directly connected to the output end of the power supply and cannot access the MCU development board or other power supply with anti-connection diode, which will cause the current to fail to keep up with the change. Therefore, it is recommended to directly connect to the source output port of the 5v power supply.

8. After triggering, the indicator light goes out and there is no sound?

Answer: If this situation goes off after triggering, it means that the trigger port chip is working normally, but MP3 files cannot be played. You can consider whether the memory card file format conforms to the file naming rules introduced by the above baby, then consider the speaker problem and the memory card problem. (Speaker problems can be tried by plugging in headphones, memory cards can also be formatted before testing)

9. After playing, the 8-pin power amplifier chip heats up?

Answer: Pay attention to whether the horn is short-circuited and properly connected. The two wires of the horn are directly connected to the Speaker port without grounding