midi@3:14 is a home-made electronic keyboard for playing music.
This repository contains a program that shows the current state of the keyboard on a PCD8544 (Nokia 5110) display. It uses the following crates:
midi314-display can typically be run on a Raspberry Pi SBC with a PCD8544 hat.
The pin numbers and the SPI device path are hard coded in main.rs at the moment but they are easy to change.
| Constant | Value | Role |
|---|---|---|
LCD_RST |
24 | Reset pin number |
LCD_DC |
25 | Data/Command pin number |
LCD_SPI |
/dev/spidev0.0 |
SPI device file |
LCD_ORIENT |
Portrait(false) |
Default orientation in portrait mode |
The display shows the following information:
- Pitch range: current min and max note names.
- Program range: current min and max program numbers.
- Current program or percussion mode.
- Tempo.
- Loop states: empty, recording, playing, muted.
If no LCD is attached, the program also prints the same information to the standard output.
Build the program using this command from the root of the source tree:
cargo build --release
We assume that you have followed the instructions from midi314-looper to start FluidSynth and the midi@3:14 looper program.
From the root of this source tree, start the display program:
./target/release/midi314-display
In another terminal, connect the MIDI input of the display program to the keyboard:
pw-link "Midi-Bridge:Arduino Leonardo:(capture_0) Arduino Leonardo MIDI 1" midi314-display:midi_in