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Moduled Nano

MIDI controlled modular LED synthesizer (8 hp). Setup LED animations using MIDI data on your modular rack.

DIY

Hardware

What you need

1x Arduino Nano
1x 8x8 LED matrix
1x Neopixel LED ring (8 LEDs)
1x MIDI female jack
2x buttons
1x 2-way toggle switch
2x 10K Potentiometers
2x 220 ohm resistor
1x 4.7k resistor
3x 10k resistor
1x 1N914 diode
1x 6N138 Optocoupler
Protoboard, wires, soldering iron

Case

I designed the case using Blender 3D rendering software and exported an stl file and printed the case using Lulzbot TAZ 6 3D printer. The .blend and stl file for the case can be found here.

Software

moduled_nano.ino

Moduled Nano Arduino script.

Setting up custom LED animations

Using this online LED matrix editor you can setup a sequence of images to be added as an animation.

Usage

Shapes

8x8 LED matrix shapes that change size

Empty circles | 4 sizes

const uint64_t IMAGES[] = {
  0x0000001818000000,
  0x0000182424180000,
  0x003c424242423c00,
  0x3c4281818181423c
};

Filled circles | 4 sizes

const uint64_t IMAGES[] = {
  0x0000001818000000,
  0x0000183c3c180000,
  0x003c7e7e7e7e3c00,
  0x3c7effffffff7e3c
};

Diagonal lines (symmetric) | 4 sizes

const uint64_t IMAGES[] = {
  0x4080000000000102,
  0x50a040800102050a,
  0x54a851a2458a152a,
  0x55aa55aa55aa55aa
};

Diagonal lines (non-symmetric) | 7 sizes

const uint64_t IMAGES[] = {
  0x4080000000000000,
  0x50a0408000000000,
  0x54a850a040800000,
  0x55aa54a850a04080,
  0x55aa55aa54a850a0,
  0x55aa55aa55aa54a8,
  0x55aa55aa55aa55aa
};

Animations

Growing cross | 12 frames

0xffc3a59999a5c3ff,
0x8142241818244281,
0x0042241818244200,
0x0000241818240000,
0x0000001818000000,
0x0000000810000000,
0x0000001008000000,
0x0000001818000000,
0x0000241818240000,
0x0042241818244200,
0x8142241818244281,
0xffc3a59999a5c3ff

Circling box | 28 frames

const uint64_t IMAGES[] = {
  0x0100000000000000,
  0x0101000000000000,
  0x0101010000000000,
  0x0101010100000000,
  0x0101010101000000,
  0x0101010101010000,
  0x0101010101010100,
  0x0101010101010101,
  0x0101010101010103,
  0x0101010101010107,
  0x010101010101010f,
  0x010101010101011f,
  0x010101010101013f,
  0x010101010101017f,
  0x01010101010101ff,
  0x01010101010181ff,
  0x01010101018181ff,
  0x01010101818181ff,
  0x01010181818181ff,
  0x01018181818181ff,
  0x01818181818181ff,
  0x81818181818181ff,
  0xc1818181818181ff,
  0xe1818181818181ff,
  0xf1818181818181ff,
  0xf9818181818181ff,
  0xfd818181818181ff,
  0xff818181818181ff
};

Pharmacy | 16 frames

const uint64_t IMAGES[] = {
  0x0000001818000000,
  0x0000182424180000,
  0x0018186666181800,
  0x181818e7e7181818,
  0x991818e7e7181899,
  0xdbdb18e7e718dbdb,
  0xffffffe7e7ffffff,
  0xffffffffffffffff,
  0xffffffffffffffff,
  0xffffffe7e7ffffff,
  0xdbdb18e7e718dbdb,
  0x991818e7e7181899,
  0x181818e7e7181818,
  0x0018186666181800,
  0x0000182424180000,
  0x0000001818000000
};

Filling circles | 11 frames

const uint64_t IMAGES[] = {
  0x0000001818000000,
  0x0000182424180000,
  0x003c424242423c00,
  0x7e8181818181817e,
  0x7e8181999981817e,
  0x7e8181999981817e,
  0x7e8199a5a599817e,
  0x7ebdc3c3c3c3bd7e,
  0x7ebdc3dbdbc3bd7e,
  0x7ebddbe7e7dbbd7e,
  0x7ebddbffffdbbd7e
};