Voice Play Module MP3 Prompt Trigger Broadcast MCU DIY Broadcaster for Arduino |

Voice Play Module MP3 Prompt Trigger Broadcast MCU DIY Broadcaster for Arduino |

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Voice playback module MP3 prompter Trigger a broadcast once a single chip DIY broadcaster M3

Reference description:

Name: M3 voice playback module

Model: YS-M3

Size: 4x4.1x0.9cm

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

Standby current: 28MA

Working current: greater than 80MA (specifically related to speakers and sound volume)

Trigger ports: 9

Trigger songs: 9 songs are directly triggered, 31 songs are triggered by single-chip encoding

Trigger level: low level (below 0.8V)

Speaker parameters: 0-3 watts 4-8 ohms (volume adjustable)

Support maximum memory: 32G

Supported playback formats: MP3, WAV

Difference: This module is basically the same as the M3T module in our store. The trigger levels of the two are different. This model is a low-level trigger.

Special application tips:

1. It is necessary to use this module to play a certain song when it is powered on. It is only necessary to ground the corresponding trigger port (GND) before powering on!

Inspection and testing process:

1. Prepare 5V power supply, memory card, speakers, and save the memory card into an MP3 file according to the naming method described above.

2. Insert the memory card, speaker, and 5V power supply according to the order (pay attention to the positive and negative poles, 5V is positive, and GND is negative).

3. Use the connecting line to trigger the connection between GND and A1, the indicator light will be off, and song 1 will be played at the same time.

4. The operation is completed. (If the indicator light flashes once and no music is played after triggering, check the file format of the memory card)

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

A: Direct port triggering can trigger 9 songs, and MCU encoding control can trigger 31 songs; the trigger sequence is determined according to the MP3 naming sequence number in the 01 folder, for example, the first song is 001.MP3

2. Can you connect the loudspeaker? Can you pick up the sound?

Answer: The maximum power of directly connected to the speaker is 3w 4-8R; it can be connected to a speaker or a power amplifier to amplify the sound to connect to a larger speaker.

3. How to trigger port playback?

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

4. How to pause and the previous and next songs?

A: There is no such function.

5. What are CN1 and BY pins used for?

Answer: CN1 is a low-level trigger to play the second song. After triggering, it cannot be interrupted by other triggers until the playback is over. BY is the output of the working state. It outputs a high level when playing, and keeps a low level by default when not playing. . The specific use depends on personal use, use it if you need it, and leave it empty if 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 player module, as long as the MP3 file or WAV file is stored, the corresponding content can be played, regardless of the specific sound!

7. Why does the playback stop automatically after 1-2 seconds of playback?

Answer: This kind of fault is caused by insufficient instantaneous current supply of the external power supply, which causes the reset to stop. Therefore, during the use process, the customer should directly connect to the output end of the power supply, and cannot connect to the microcontroller development board or other power supplies with anti-reverse diodes. , this will cause the current to not keep up with the changes, so it is recommended to directly connect to the source output port of the 5v power supply.

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

Answer: In this case, it turns off after triggering, indicating that the trigger port chip is working normally, but the MP3 file cannot be played. You can consider whether the file format of the memory card conforms to the file naming rules introduced by the above baby, and then consider the speaker problem and the memory card problem. (The speaker problem can be tested by plugging in the headphones, and the memory card can also be formatted first and then tested)

9. Does the 8-pin power amplifier chip get hot after playing?

A: Pay attention to whether the horn is short-circuited and connected correctly. The 2 wires of the speaker are directly connected to the Speaker port and do not need to be grounded.

Package Included:
1 * Voice Playback MP3 Reminder Module