Two working examples for interacting with the sphero

Gemfile

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+source "https://rubygems.org"
+
+gem 'midi'
+gem 'hybridgroup-sphero'
+gem 'listen'

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    ffi (1.9.0)
+    ffi-coremidi (0.2.0)
+      ffi (>= 1.0)
+    hybridgroup-sphero (1.3.0)
+    listen (1.1.4)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9)
+      rb-kqueue (>= 0.2)
+    midi (0.0.9)
+      midi-eye (>= 0.1.3)
+      midi-message (>= 0.2.2)
+      unimidi (>= 0.2.3)
+    midi-eye (0.2.2)
+      midi-message
+      midi-nibbler
+      unimidi
+    midi-message (0.3.2)
+    midi-nibbler (0.1.1)
+      midi-message
+    rb-fsevent (0.9.3)
+    rb-inotify (0.9.0)
+      ffi (>= 0.5.0)
+    rb-kqueue (0.2.0)
+      ffi (>= 0.5.0)
+    unimidi (0.3.3)
+      ffi-coremidi
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  hybridgroup-sphero
+  listen
+  midi

README.md

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+# Sphero Examples
+
+## Installation
+
+```
+$ bundle
+```
+
+## Sphero
+
+The sphero command example allows you to write and save commands to a file and
+have sphero execute those commands. Sphero will automatically execute the
+commands written into the `sphero.rb` file whenver they are saved.
+
+### Run
+
+```
+$ ruby sphero_saddle.rb
+```
+
+### Write
+
+* Open the file `sphero.rb` with your text editor
+* Write commands
+* Save the file
+
+## Music Sphero
+
+The music sphero command example allows you to write and save commands to a
+file and have sphero execute those commands. Sphero will automatically execute
+the commands written into the `midi.rb` file whenver they are saved.
+
+### Run
+
+```
+$ ruby midi_saddle.rb
+```
+
+### Write
+
+* Open the file `midi.rb` with your text editor
+* Write commands
+* Save the file

midi.rb

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+#
+#  .----------------.
+# | .--------------. |  I AM SPHERO! I can do a lot of things:
+# | |     ____     | |
+# | |   .'    `.   | |  sphero.color("azure")
+# | |  /  .--.  \  | |  sphero.roll(SPEED,DIRECTION_IN_DEGREES)
+# | |  | |    | |  | |  sphero.stop
+# | |  \  `--'  /  | |
+# | |   `.____.'   | |
+# | |              | |
+# | '--------------' |
+#  '----------------'
+
+if note.note_name == "C"
+  puts "I just played a C"
+  sphero.color("green")
+  puts "Setting the heading"
+end
+
+if note.velocity > 100
+  puts "I just played a note really hard"
+  sphero.color("gold")
+end

midi_saddle.rb

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+require 'midi'
+require 'erb'
+require 'sphero'
+
+puts "Connecting to Sphero..."
+
+# class Sphero
+#   def initialize(connection) ; end
+
+#   def roll(*params)
+#     puts "Rolling with #{params.inspect}"
+#   end
+
+#   def color(*args)
+#     puts "Changing Color"
+#   end
+
+#   def stop
+#     puts "Stopping"
+#   end
+# end
+
+
+sphero = Sphero.new ENV['sphero'] || ARGV[0] || "/dev/tty.Sphero-GRR-RN-SPP"
+puts "Connected to Sphero"
+
+NOTES = { "C" => %{
+ .----------------.
+| .--------------. |
+| |     ______   | |  note.note_name : <%= note.note_name %>
+| |   .' ___  |  | |  note.name      : <%= note.name %>
+| |  / .'   \\_|  | |  note.velocity  : <%= note.velocity %>
+| |  | |         | |
+| |  \\ `.___.'\\  | |
+| |   `._____.'  | |
+| |              | |
+| '--------------' |
+ '----------------'
+},
+  "D" => %{
+ .----------------.
+| .--------------. |
+| |  ________    | |  note.note_name : <%= note.note_name %>
+| | |_   ___ `.  | |  note.name      : <%= note.name %>
+| |   | |   `. \\ | |  note.velocity  : <%= note.velocity %>
+| |   | |    | | | |
+| |  _| |___.' / | |
+| | |________.'  | |
+| |              | |
+| '--------------' |
+ '----------------'
+},
+  "E" => %{
+ .----------------.
+| .--------------. |
+| |  _________   | |  note.note_name : <%= note.note_name %>
+| | |_   ___  |  | |  note.name      : <%= note.name %>
+| |   | |_  \\_|  | |  note.velocity  : <%= note.velocity %>
+| |   |  _|  _   | |
+| |  _| |___/ |  | |
+| | |_________|  | |
+| |              | |
+| '--------------' |
+'----------------'
+},
+  "F" => %{
+ .----------------.
+| .--------------. |
+| |  _________   | |  note.note_name : <%= note.note_name %>
+| | |_   ___  |  | |  note.name      : <%= note.name %>
+| |   | |_  \\_|  | |  note.velocity  : <%= note.velocity %>
+| |   |  _|      | |
+| |  _| |_       | |
+| | |_____|      | |
+| |              | |
+| '--------------' |
+ '----------------'
+},
+  "G" => %{
+ .----------------.
+| .--------------. |
+| |    ______    | |  note.note_name : <%= note.note_name %>
+| |  .' ___  |   | |  note.name      : <%= note.name %>
+| | / .'   \\_|   | |  note.velocity  : <%= note.velocity %>
+| | | |    ____  | |
+| | \\ `.___]  _| | |
+| |  `._____.'   | |
+| |              | |
+| '--------------' |
+ '----------------'
+},
+  "A" => %{
+ .----------------.
+| .--------------. |
+| |      __      | |  note.note_name : <%= note.note_name %>
+| |     /  \\     | |  note.name      : <%= note.name %>
+| |    / /\\ \\    | |  note.velocity  : <%= note.velocity %>
+| |   / ____ \\   | |
+| | _/ /    \\ \\_ | |
+| ||____|  |____|| |
+| |              | |
+| '--------------' |
+ '----------------'
+},
+  "B" => %{
+ .----------------.
+| .--------------. |
+| |   ______     | |  note.note_name : <%= note.note_name %>
+| |  |_   _ \\    | |  note.name      : <%= note.name %>
+| |    | |_) |   | |  note.velocity  : <%= note.velocity %>
+| |    |  __'.   | |
+| |   _| |__) |  | |
+| |  |_______/   | |
+| |              | |
+| '--------------' |
+ '----------------'
+}
+}
+
+NOTES.default = %{
+ .----------------.
+| .--------------. |
+| |      _       | |  note.note_name : <%= note.note_name %>
+| |   /\\| |/\\    | |  note.name      : <%= note.name %>
+| |   \\     /    | |  note.velocity  : <%= note.velocity %>
+| |  |_     _|   | |
+| |   /     \\    | |
+| |   \\/|_|\\/    | |
+| |              | |
+| '--------------' |
+ '----------------'
+}
+
+puts %{
+ .----------------.  .----------------.  .----------------.  .----------------.
+| .--------------. || .--------------. || .--------------. || .--------------. |
+| |   ______     | || |   _____      | || |      __      | || |  ____  ____  | |
+| |  |_   __ \\   | || |  |_   _|     | || |     /  \\     | || | |_  _||_  _| | |
+| |    | |__) |  | || |    | |       | || |    / /\\ \\    | || |   \\ \\  / /   | |
+| |    |  ___/   | || |    | |   _   | || |   / ____ \\   | || |    \\ \\/ /    | |
+| |   _| |_      | || |   _| |__/ |  | || | _/ /    \\ \\_ | || |    _|  |_    | |
+| |  |_____|     | || |  |________|  | || ||____|  |____|| || |   |______|   | |
+| |              | || |              | || |              | || |              | |
+| '--------------' || '--------------' || '--------------' || '--------------' |
+ '----------------'  '----------------'  '----------------'  '----------------'
+}
+
+input = UniMIDI::Input.list.first
+
+MIDI.using(input) do
+  thru_except :note
+
+  receive :note do |note|
+    return if note.velocity == 0 || note.status.first == 8
+
+    # puts "#{note.inspect}"
+
+    begin
+      current_note_text = NOTES[note.note_name]
+      current_note_template = ERB.new(current_note_text)
+      puts current_note_template.result(binding)
+      puts "\n"
+
+    rescue Exception => exception
+      puts "Exception: #{exception}"
+    end
+
+    begin
+      eval File.read("music.rb")
+    rescue Exception => exception
+      puts "Exception: #{exception}"
+    end
+
+  end
+
+  join
+
+end

sphero.rb

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+#
+#  .----------------.
+# | .--------------. |  I AM SPHERO! I can do a lot of things:
+# | |     ____     | |
+# | |   .'    `.   | |  sphero.color("azure")
+# | |  /  .--.  \  | |  sphero.roll(SPEED,DIRECTION_IN_DEGREES)
+# | |  | |    | |  | |  sphero.keep_going(TIME_IN_SECONDS)
+# | |  \  `--'  /  | |  sphero.stop
+# | |   `.____.'   | |
+# | |              | |
+# | '--------------' |
+#  '----------------'
+
+say "Sphero listens, Sphero obeys!"
+
+sphero.color("green")
+sphero.keep_going(3)
+sphero.color("gold")

sphero_saddle.rb

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+require 'sphero'
+require 'erb'
+require 'listen'
+
+puts "Connecting to Sphero..."
+
+# class Sphero
+#   def initialize(connection) ; end
+
+#   def roll(*params)
+#     puts "Rolling with #{params.inspect}"
+#   end
+
+#   def color(*args)
+#     puts "Changing Color"
+#   end
+
+#   def stop
+#     puts "Stopping"
+#   end
+# end
+
+sphero = Sphero.new ENV['sphero'] || ARGV[0] || "/dev/tty.Sphero-GRR-RN-SPP"
+puts "Connected to Sphero"
+
+def sphero_template
+  @sphero_template ||= ERB.new %{
+ .----------------.
+| .--------------. |
+| |     ____     | |
+| |   .'    `.   | |
+| |  /  .--.  \\  | |  <%= @message %>
+| |  | |    | |  | |
+| |  \\  `--'  /  | |
+| |   `.____.'   | |
+| |              | |
+| '--------------' |
+ '----------------'
+}
+end
+
+def say(message)
+  @message = message
+  puts sphero_template.result
+end
+
+
+Thread.abort_on_exception = true
+Thread.new do
+  listener = Listen.to(".")
+  listener.change do |modified,added,removed|
+    if modified.first == "sphero.rb"
+
+      begin
+        eval File.read(modified.first)
+
+        say "Sphero is ALL DONE!"
+        sphero.stop
+
+      rescue Exception => exception
+        say "Uh Oh! Sphero Go BOOM! #{exception}"
+      end
+    end
+
+  end
+  listener.start
+end
+
+sleep