I'm trying to run a Ruby file that enables leap motion for sphero (version 2.0.0). I'm having troubles with the loading error when I try running from cmd.
The code for the ruby file:
require 'em-websocket' require 'sphero' Sphero.start "/dev/tty.Sphero-RWP-AMP-SPP" do |s| puts "Connected to Sphero!" sleep 1 3.times do begin s.color 'green' rescue end end keep_going 1 s.color 'black' calibration = 0 EM.run { EM::WebSocket.run(:host => "0.0.0.0", :port => 8080) do |ws| mutex_sphero = Mutex.new mutex_req = Mutex.new req = nil ws.onopen { |handshake| puts "WebSocket connection open" } ws.onclose { puts "Connection closed" } ws.onmessage { |msg| puts "Recieved message: #{msg}" if msg == 'start' mutex_sphero.synchronize { s.color 'blue', true } elsif msg == 'stop' mutex_sphero.synchronize { s.color 'black', true stop mutex_req.synchronize { req = nil } } elsif msg == 'calibrate+' or msg == 'calibrate-' mutex_sphero.synchronize { s.color 'black' s.back_led_output = 0xff calibration = (calibration + (msg == "calibrate+" ? 15 : 360-15)) % 360 puts "calibration = #{calibration}" s.roll 0, calibration } EM.cancel_timer(@calib_timer) if @calib_timer @calib_timer = EM.add_timer(3) do mutex_sphero.synchronize { s.back_led_output = 0 } end else data = msg.split(',').map {|d| d.to_i } speed = [Math.sqrt(data[0]**2 + data[1]**2)*20, 0xff].min.to_i deg = Math.atan2(data[0], data[1]) / Math::PI * 180 deg = (deg + calibration + 360) % 360 p [speed, deg.to_i] mutex_req.synchronize { req = [speed, deg.to_i] } EM.defer do mutex_sphero.synchronize do r = nil mutex_req.synchronize { r, req = req, r } s.roll *r if r end end } end } end Here's the error:
C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:53;in 'require' cannot load such file -- C:\Ruby200\lib\ruby\gems\2.0.0\gems\em-websocket.gem <LoadError> from C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:53:in 'require' from websocket-sphero.rb:3:in '<main>' Can anyone help me?
