LED MIDI Player

Lighting WS2812 LED strip by parsing a midi file on Raspberry Pi.

Demo

https://www.bilibili.com/video/av68328315

Dependency

• rpi_ws281x

• adafruit-circuitpython-neopixel

• mido

• python-rtmidi

  python-rtmidi compiling needs libasound2-dev & libjack-jackd2-dev packages, use apt-get to install.

sudo pip3 install rpi_ws281x adafruit-circuitpython-neopixel mido python-rtmidi

Hardware

• Raspberry Pi

• WS2812 LED strip (taobao)

  74 pixels/m or 144 pixels/m is better, but still has some disalignment to piano keys.

  I used 74 pixels/m strip and cut it to 12~15 pixels per segment, then soldering those segments by myself for aligning led pixel to piano key one by one.

• 5V 10A DC power supply (taobao)

• DC 5.5*2.5MM power jack socket connector (taobao)

• bread board and wires

Wiring Diagram

Usage

sudo python3 play.py -f music.mid [-p audio_port_name]