sysex_output.rb

#!/usr/bin/env ruby
# frozen_string_literal: true

dir = File.dirname(File.expand_path(__FILE__))
$LOAD_PATH.unshift "#{dir}/../lib"

require 'unimidi'

# Prompts the user to select a MIDI output
# Sends a MIDI system exclusive message to that output

sysex_msg = [0xF0, 0x41, 0x10, 0x42, 0x12, 0x40, 0x00, 0x7F, 0x00, 0x41, 0xF7]

output = UniMIDI::Output.gets

output.puts(sysex_msg)