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