Music Photo Frame (Nintendo 3DS)

A tiny 3DS project made for one thing only: vibing in the moment.

Purpose

The full flow is intentionally simple:

1. Take a picture
2. Pick a simple filter and frame
3. Pick a music track
4. Enjoy your gorgeous ~0.3MP photo while listening to delightfully downsampled audio

This app is less about perfect quality and more about atmosphere.

Build requirements

• devkitPro with devkitARM
• 3DS libraries used by this project (via devkitPro): libctru, citro2d, citro3d
• 3dslink (for Wi-Fi sending to a running 3DS homebrew loader)

Before building, make sure DEVKITARM is set (the Makefile enforces this):

export DEVKITARM=<path to>/devkitARM

Build & Make commands

All commands are in the project Makefile.

• make or make all
  Build the project and produce musicframe.3dsx.

• make clean
  Remove build artifacts (build/, .elf, .3dsx, .smdh, generated gfx files).

• make run
  Clean + rebuild + send over Wi-Fi using:

  3dslink musicframe.3dsx

• make send
  Send current build over Wi-Fi without rebuilding:

  3dslink musicframe.3dsx

Yes, you can literally build and send to your 3DS over Wi-Fi.

Music file location

Put audio files here on your SD card:

sdmc:/3ds/musicframe/music/

The app scans this folder (non-recursive) and shows .wav files.

WAV format requirements (important)

Your .wav files must be valid and reasonably small.

Accepted by the audio loader:

• RIFF/WAVE format
• PCM only (audio_format == 1)
• 16-bit samples
• 1 or 2 channels (mono or stereo)
• PCM data chunk must be <= 8 MB

If a file does not match these constraints, it will fail to load.

Quick vibe checklist

1. Launch app on 3DS
2. Capture photo
3. Choose filter
4. Choose frame
5. Choose .wav
6. Press play and vibe