FN-BC10S-N MP3 Player Sound Board with 25W*2 Stereo Amplifier (NEGATIVE TRIGGER)

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Skill Level : Assembled and Tested

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Button-Triggered Sound File Upload Terminal Block Connection Built-in Amplifier Headphone Audio Output Additional Memory Capable Load / Busy Output Serial Control 10 Buttons or More


Description:  FN-BC10S is a high quality MP3 player soundboard developed by Flyron Technology Co., Ltd. Equipped with a

25W*2 class D amplifier, the sound module can be controlled by 10 separate buttons (switches) hooked up to the

“one-on-one" inputs terminals and by RS485 or UART serial port.  When it is playing a sound, it is able to drive an external load (equipment) like a warning light or a motor simultaneously. Great audio output, industry-grade design

and strong anti-jamming capability make it possible to be used for many different applications.


  • NEGATIVE TRIGGER FUNCTION - trigger sound by completing circuit between button and ground.
  • Equipped with a high quality audio decoder, which supports MP3 and WAV audio formats.
  • Uses 3.81mm pitch terminal blocks, and it’s very easy to connect wires using a small slotted screwdriver. 
  • Supports button control mode, UART serial control mode, and RS485 serial control mode. 
  • Negative trigger and positive trigger are available to choose for button control mode. 
  • In button control mode, it supports 10 types of trigger modes. -Set a trigger mode using a config file (text file) easily. 
  • Uses the built-in SPI flash memory and a micro SD card as the storage devices. 
  • Built-in 8MB SPI flash memory and supports max. 32GB micro SD card. 
  • Equipped with a type-C USB connector. Possible to load audio files to the flash memory/micro SD card directly via USB connection to computer. 

-The flash memory/micro SD card will be detected as a USB flash drive on computer. 

-The solder pads at the back of the USB connector are used to connect to an external USB connector, which can be a connector for USB flash drive (USB stick) or a connector for connecting to computer. 

  • Equipped with a class D stereo 25W*2 amplifier that can drive two max. 25 watts speakers directly. 
  • Equipped with a 3.5mm audio jack for stereo output that can drive an earphone directly or connect to an external amplifier.

-The holes on top of the audio jack are used to connect an external audio jack or directly connecting to external amplifier. 

  • Adjustable sound volume for speaker output through the volume knob. 

-The holes below the volume knob are used to connect an external volume potentiometer. 

  • Able to power up an external equipment like a warning light simultaneously when it is playing a sound. 
  • There is a terminal for busy output. When the board is playing, it outputs 3.3V; while it is standby, it outputs 0V. 
  • There are four mounting holes in the board. Easy to fix.

Technical Parameters

  • Working voltage: DC 12V-24V
  • Working current: ≥4500mA @12V (when it has two 25W speakers, and external load/warning light is not connected)
  • ≥2250mA @24V (when it has two 25W speakers, and external load/warning light is not connected)
  • Output current to an external load/warning light: ≤1000mA
  • Power consumption: ≤50W ( (external load/warning light not included))
  • On-board flash memory size: 8MB
  • Audio format: MP3 and WAV

Make this module motion activated: External PIR Motion Sensor PIR-001 or PIR-002

Documentation and Downloads