Answers.Body: <p>You can use the Bluetooth mailbox feature to pass messages back and forth between 2 NXTs.</p>
  
  <p>If you want to use sensors, you could use the HiTechnic <a href="http://www.hitechnic.com/cgi-bin/commerce.cgi?preadd=action&amp;key=NIL1046" rel="nofollow">NXT IRLink Sensor</a> (NIL1046) and <a href="http://www.hitechnic.com/cgi-bin/commerce.cgi?preadd=action&amp;key=NIR1032" rel="nofollow">NXT IRReceiver Sensor</a> (NIR1032).</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-08-26T21:03:04.293Z
Answers.LastActivityDate: 2014-08-26T21:03:04.293Z
Answers.UserDisplayName: David Lechner
Body: <p>Is it possible to connect, in some way, two NXT bricks that has program functions running on both. For example, Brick one would tell brick two that it is okay to start a program. Are there any sensors that could facilitate this type of communication?</p>
  
Tags: <nxt><programming>
Title: How to make NXT bricks communicate information?
UserDisplayName: Stefanos Koutsoukos
ThreadText: # How to make NXT bricks communicate information?
  
  (Asked by: username_0 on 2014-08-26)
  
  Is it possible to connect, in some way, two NXT bricks that has program functions running on both. For example, Brick one would tell brick two that it is okay to start a program. Are there any sensors that could facilitate this type of communication?
  
  **Tags:** nxt, programming
  
  
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  ## 1 answers
  
  ### Answer by username_1 on 2014-08-26. Score: 3 | Accepted answer
  
  You can use the Bluetooth mailbox feature to pass messages back and forth between 2 NXTs.
  
  If you want to use sensors, you could use the HiTechnic [NXT IRLink Sensor](http://www.hitechnic.com/cgi-bin/commerce.cgi?preadd=action&key=NIL1046) (NIL1046) and [NXT IRReceiver Sensor](http://www.hitechnic.com/cgi-bin/commerce.cgi?preadd=action&key=NIR1032) (NIR1032).
  
  
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