Answers.Body: <p>Both of your examples are working for me. In the Bluetooth settings on the EV3, make sure "iPhone/iPad/iPod" is <em>not</em> checked.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-10-22T07:04:19.653Z
Answers.Text: Unchecking "iPhone/iPad/iPod" do the trick. Thanks a lot!
Answers.UserDisplayName: user4053
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-10-22T09:33:49.103Z
Answers.Text: Please consider accepting David Lechner's answer if it solved your problem.
Answers.UserDisplayName: Kramii
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-10-22T09:36:55.277Z
Answers.Text: Hi, as Kramii states, it would be really beneficial for everyone if you can accept Davids answer (click the little check mark below the vote count) - David and you will both get some rep, and other people will know what worked for you :)
Answers.UserDisplayName: Zhaph - Ben Duguid
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-10-23T12:27:45.403Z
Answers.Text: Vote up requires 15 reputation... which I do not have
Answers.UserDisplayName: user4053
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-10-20T16:12:56.590Z
Answers.LastActivityDate: 2014-10-20T16:12:56.590Z
Answers.UserDisplayName: David Lechner
Body: <p>I tried to execute command (via bt) play tone:</p>
  
  <pre><code>play_tone = '\x0F\x00\x00\x00\x80\x00\x00\x94\x01\x81\x02\x82\xE8\x03\x82\xE8\x03'
  # send commands to EV3 via bluetooth
  with open('/dev/tty.EV3-SerialPort', 'w', 0) as bt:
      bt.write(play_tone)
  </code></pre>
  
  <p>or start program “Demo” on EV3 brick</p>
  
  <pre><code>run_demo = '\x30\x00\x00\x00\x80\x08\x00\xC0\x08\x82\x01\x00\x84\x2E\x2E\x2F\x70\x72\x6A\x73\x2F\x42\x72\x6B\x50\x72\x6F\x67\x5F\x53\x41\x56\x45\x2F\x44\x65\x6D\x6F\x2E\x72\x70\x66\x00\x60\x64\x03\x01\x60\x64\x00'
  </code></pre>
  
  <p>but nothing happens. No error in python script. Wireless connection status (EV3 brick display) show connected during script execution.</p>
  
  <p>OS X 10.9.4, Python 2.7.5, EV3</p>
  
Tags: <ev3>
Title: Lego EV3 doesn't respond to direct command
UserDisplayName: user4053
ThreadText: # Lego EV3 doesn't respond to direct command
  
  (Asked by: username_0 on 2014-10-20)
  
  I tried to execute command (via bt) play tone:
  play_tone = '\x0F\x00\x00\x00\x80\x00\x00\x94\x01\x81\x02\x82\xE8\x03\x82\xE8\x03'
  # send commands to EV3 via bluetooth
  with open('/dev/tty.EV3-SerialPort', 'w', 0) as bt:
      bt.write(play_tone)
  
  or start program “Demo” on EV3 brick
  run_demo = '\x30\x00\x00\x00\x80\x08\x00\xC0\x08\x82\x01\x00\x84\x2E\x2E\x2F\x70\x72\x6A\x73\x2F\x42\x72\x6B\x50\x72\x6F\x67\x5F\x53\x41\x56\x45\x2F\x44\x65\x6D\x6F\x2E\x72\x70\x66\x00\x60\x64\x03\x01\x60\x64\x00'
  
  but nothing happens. No error in python script. Wireless connection status (EV3 brick display) show connected during script execution.
  OS X 10.9.4, Python 2.7.5, EV3
  
  **Tags:** ev3
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2014-10-20. Score: 1
  
  Both of your examples are working for me. In the Bluetooth settings on the EV3, make sure "iPhone/iPad/iPod" is *not* checked.
  
  > **Comments:**
  > **username_0**: Unchecking "iPhone/iPad/iPod" do the trick. Thanks a lot!  
  > **username_2**: Please consider accepting David Lechner's answer if it solved your problem.  
  > **username_3**: Hi, as Kramii states, it would be really beneficial for everyone if you can accept Davids answer (click the little check mark below the vote count) - David and you will both get some rep, and other people will know what worked for you :)  
  > **username_0**: Vote up requires 15 reputation... which I do not have  
  
  ---
  
  