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MP3 playback module til 19 triggers channels. Each trigger start playing a corresponding MP3 / Wav file. Perfect for museums, galleries and exhibitions where you need a solution enabling you audience to hear selected language/speak/music. Just connect standard OFF-(ON) push buton to the trigger channel pins used ad you users will be able to select and listen to the corresponding MP3 track.
You may connect a headphone or small speakers (max. 5W, see accessories).
Specifications:
Dinensions: 7.2 x 3.5 x 0.9cm
Power supply voltage: 5V (range 3.7-5.5V, support 3.7V/4.2V such as 18650 battery, output capacity >200mah)
Current consumption: >300mA (>50ma is also acceptable when speaker is not connected)
Standby current: 36mA
Trigger ports: 19 (one port corresponds to one MP3)
Function ports: 5 (up and down music, volume increase and decrease, pause/play)
Possible modes: Single without looping, single looping, playback without interruption, long press play mode
Speaker parameters: 0.5-5 watts 2-8 ohms (volume adjustable)
Maximum SD card memory supported: 32GB
Supported playback formats: MP3, WAV
File format requirements: You need to create a folder named "01" and then save the files 001.MP3 -019.MP3
Working temperature (and humidity): -20...50°C (5%-90%)
Note: When using battery power supply, make sure the capacitor capacity is large enough, otherwise it will not work properly after the voltage drops to 3.5V when there is a lack of power.
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