One-shot

One-shot audio playback and MP3 player device

DIY

What you need

Arduino Uno
DFPlayer mini ()
LEDs (I use a 8 LED Neopixel strip)
4x4 Keypad
One 3-way toggle switch
2 10K Potentiometers

Software

one_shot.ino

Polycule Arduino script.

Sample organizer

Organize and convert samples to mp3 (Linux).

Usage

One-shot has two modes:

Sample player
MP3 player

The modes can be selected using the switch.

Sample Player Mode

Buttons 1-12 play samples
Buttons 13-16 select sample sets
Pot B is a low pas filter

MP3 Player Mode

Button 1 -> Play
Button 2 -> Pause
Button 3 -> Next song
Button 4 -> Previous song
Button 5 -> Random song
Button 6 -> First song

Settings

Button 13 & Pot A -> Set volume
Button 14 & Pot A -> LED brightness
Button 15 & Pot A -> Wait time
Button 16 & Pot A-> LED color