Player Piano Controller

Arduino/esp32 code for making a DIY Player Piano.
This is a fork from the original project, with some improvements:

• usage of ESP32-BLE-MIDI library (improving compatibility with windows / apple / android)
• adding wifi MIDI capability (you can use rtpMidi and loopMidi for connecting to it from windows)
• various bugfixes
• last key of piano (88) is used for sustain pedal instead of more electronics connected to ESP32
• schemas and solenoid board PCB that I created for making this project

Original project informations can be found here.

Boards are connected using chained serial:
control-box TX -> RX brain TX -> RX note-handler

Control Box (Pro Micro):

• Interface for changing settings
• Reset keys button (resets solenoids)
• Receives MIDI data from USB and sends it to ESP32

Brain (ESP32):

• Receives note data from Control Box
• Receives and decodes MIDI messages (BLE and/or WIFI)
• Schedules notes and sustain
• Send notes to the note handler

Note handler (Pro Micro):

• Receives note data from ESP32
• Receives MIDI data from USB
• Activates notes using shift registers

Used Arduino Libraries:

• Arduino Core for ESP32
• MIDIUSB (Note handler & Control Box)
• ShiftPWM (Note handler) (Already in project folder)
• LiquidCrystal_I2C (Control Box) (Already in project folder)
• ESP32-BLE-MIDI (ESP32) (for bluetooth midi receiving)
• Arduino AppleMIDI Library (ESP32) (for wifi midi receiving from win/osx/android)