USB-MIDI class driver for Arduino USB Host Shield 2.0 Library

You can convert USB MIDI keyboard to legacy serial MIDI.

Please check device list

• Arduino IDE 1.6.x or lator
• USB Host Shield 2.0 Library 1.0.0 or lator

Open the Arduino IDE and click to the "Sketch" menu and then "Include Library" > "Add .ZIP Library".
And Navigate to the downloaded zip file's location and open it.

File->Examples->USBH_MIDI->USB_MIDI_converter

File->Examples->USBH_MIDI->USB_MIDI_converter_multi

• uint8_t RecvData(uint8_t *outBuf) Receive MIDI message (3 bytes)
  return value is MIDI message length(0-3)

• uint8_t RecvData(uint16_t *bytes_rcvd, uint8_t *dataptr) Receive raw USB-MIDI Event Packets (each 4 bytes, upto 64 bytes)
  dataptr must allocate 64bytes buffer.
  return value is 0:Success, non-zero:Error(MAX3421E HRSLT) and bytes_rcvd is received USB packet length.
  note: USB packet length is not necessarily the length of the MIDI message.

• uint8_t SendData(uint8_t *dataptr, byte nCable=0) Send MIDI message. You can set CableNumber(default=0).
  return value is 0:Success, non-zero:Error(MAX3421E HRSLT)

• uint8_t SendSysEx(uint8_t *dataptr, unsigned int datasize, byte nCable=0) Send SysEx MIDI message. You can set CableNumber(default=0).
  return value is 0:Success, non-zero:Error(MAX3421E HRSLT)
  note: You must set first byte:0xf0 and last byte:0xf7

2015.09.06

• Compatible with USB Host Shield 2.0 Library 1.0.0 or lator.
• Compatible with Arduino IDE 1.6.0 or lator.
• Fix for less than 64 bytes USB packet devices
• SysEx message was broken since felis/USB_Host_Shield_2.0@45df706

2014.07.06

• Merge IOP_ArduinoMIDI branch into master
• Change class name to USBH_MIDI
• Rename the function RcvData to RecvData (Old name is still available)
• Fix examples for Arduino MIDI Library 4.2 compatibility
• Add SendSysEx()
• Add new example (eVY1_sample)

2014.03.23

• Fix examples for Arduino MIDI Library 4.0 compatibility and Leonardo

2013.12.20

• Fix multiple MIDI message problem.
• Add new example (USBH_MIDI_dump)

2013.11.05

• Removed all unnecessary includes. (latest UHS2 compatibility)
• Rename all example extensions to .ino

2013.08.28

• Fix MIDI Channel issue.

2013.08.18

• RcvData() Return type is changed to uint8_t.
• Fix examples.

2012.06.22

• Support MIDI out and loosen device check

2012.04.21

• First release

Copyright © 2012-2015 Yuuichi Akagawa

Licensed under the GNU General Public License v2.0