Control MIDI with an Android device

[Lewis] wanted to control MIDI devices with the huge touch screen that is his Android phone. After he couldn’t find a simple hardware implementation of MIDI out, he turned to an IOIO board to send MIDI notes to just about any imaginable musical hardware. It’s a clean build and fills a gap in the abilities of the Android platform.

Because of the woeful support of MIDI in Android, [Lewis] couldn’t find a good way to push MIDI notes from his phone to other devices. While there are a few high-overhead options like MIDI over wi-fi or a Bluetooth connection, there wasn’t much in the way of a straight-up hardware connection to other MIDI devices. [Lewis] got around this limitation by using an IOIO board and the right software to send MIDI notes though a DIN-5 connector.

Although the project works as intended, [Lewis]‘ build could be made more permanent by building one of these MIDI interfaces and wiring that to the IOIO. All the Android code is up and available, along with a neat demo of [Lewis] controlling the delay time of an effects unit in his guitar rig. You can check that video out after the break.

6 thoughts on “Control MIDI with an Android device

  1. Bad idea and will probably kill your IOIOI pretty soon.

    There is a reason why the specs mandate galvanic isolation for MIDI interfaces.

    I killed more than one arduino ignoring this.

    1. isolation is only for MIDI IN ports. This is an Out MIDI port (target device has optocoupling in his Input)

    2. The specs require isolation on the input side to avoid ground loops. Since he’s doing MIDI out only there should not be a problem.

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