4 Buttons Triggered MP3 Player Board with 10W Amplifier and Terminal Blocks
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- A high-quality audio decoder which, supports MP3 and WAV audio formats.
- Works with most Windows, Mac, and Linux systems
- Sampling rates supported: 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48 (KHz).
- 24 bit DAC output and supports dynamic range 90dB and SNR 85dB.
- Supports one-on-one 4 button trigger control mode and RS232 serial port control mode.
- In button control mode, it plays back 4 sounds one-on-one by negative triggering.
- Uses a MicroSD card and the built-in SPI flash memory as storage.
- Built-in 4MB SPI flash memory by default.
- Supports max. 32GB micro SD card.
- Possible to load audio files to the flash memory directly via the micro USB port. Connecting to a computer is similar to using a USB flash drive with a PC.
- A built-in mono 10-watt amplifier that can drive a 10 watt (8-ohm) speaker directly. Or 5 watt (if using the 4-ohm speaker)
- Equipped with a 3.5mm audio jack for stereo output that can drive an earphone directly or to connect with an external amplifier.
- Adjustable sound volume with the onboard potentiometer.
- Busy Signal Output Port
- Wide range for power input (DC 8-24V).
- PCB size: 52mmx49mm
- Working voltage: DC 8V-24V
- Working current: ≤400mA (Input: DC12V DC)
- Working current if playback through headphone jack only: 30mA (Input 12V DC)
- Standby current: 10mA (Input 12V DC)
- Power Consumption: ≤10W
- Onboard flash memory size: 4MB
- Audio format: MP3 and WAV
Also available with buttons, battery holder, and speaker
Use this board to build a Sound Glove. See details on this page
Make this module motion activated: External PIR Motion Sensor
K1, K2, K3, and K4 are Normally Open (N.O.) manual buttons.
TX port and RX port are used to connect with an MCU, through which serial commands are sent to control the module.
Version 1.1 of the board did not have a Busy Signal Output. The Busy Signal Output was a spare ground instead.
Version 2.0 The Busy port outputs a high signal when the module is playing a sound. Low signal when the module is in standby.
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