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Lego NxT Roboticst-Using Bluetooth

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Drexel- A Brief primer on Bluetooth

To connect the two units together via Bluetooth follow these steps:

  • Turn both units on, and make sure bluetooth is enabled on both, and that both are set to 'visible'( Top Menu-Bluetooth Menu: Visibility-Visible; Bluetooth-On)
  • On both units, select Channel 1 as the connection channel ( Bluetooth-Connections- 1)
  • Make sure that both units have no other units on their contact list. If they do, remove them from the list ( Bluetooth- My Contacts- Select Unit--Delete ).You should see a < sign in the upper left corner of both units.
  • Decide which unit is to be the master controller unit( which transmits ) and which is the slave ( which receives) .
  • On the controller unit: navigate to Bluetooth -> Search
    A search diagram will appear on the screen, be patient while the search progresses.
  • When the menu reappears select the receiver unit by name from the list. and then select connection slot #1.
  • A connection screen will appear, again be patient as it says "Connecting".
  • You will be prompted for a passkey on both units. Enter the same key on both and press enter to confirm. Leaving the default of 1234 is perfectly acceptable. Although you should be aware this is the kind of combination an idiot would put on his luggage.
  • At this point you should see the receiver unit displayed with a small '1' in the upper left corner. Select it one last time and then back out to the main menu.
  • You should see a tiny diamond in the upper left corner.

To test:

  • On Controller Unit: Go to My Files- select a file- send ( little envelope-- should say "sending"
  • On Receiver Unit: The transmitted file should now appear under "My files".

Example:

Remote Control Steering

Links

Drexel- A Brief primer on Bluetooth

Bluetooth Nxt-NxT PDF

Bluetooth Hints PDF

EditRegion53-channel remote control

 
Revised January 2011 by Jonathan Dietz, dietzj@mail.weston.org