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nxt_pc_bluetooth [2016/09/27 14:22] alvaropintadonxt_pc_bluetooth [2016/10/23 19:58] (current) dwallace
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-====== Lego Bluetooth Tutorial ======+====== NXT Bluetooth Communication Tutorial ======
  
 **Author:** Alvaro Pintado Email: <pintado@unlv.nevada.edu> \\ **Author:** Alvaro Pintado Email: <pintado@unlv.nevada.edu> \\
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   * Windows 10   * Windows 10
   * Visual Studio 15   * Visual Studio 15
-  * Intermediate experience with C++ programming (Classes, objects, pointers)+  * Intermediate experience with Cpp programming (Classes, objects, pointers)
   * Basic LEGO NXT Tribot   * Basic LEGO NXT Tribot
  
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 **Note:** See documentation for more commands and details about the LEGO NXT Communication Protocol {{:alvarop:appendix_2-lego_mindstorms_nxt_direct_commands.pdf| NXT Direct Commands}} **Note:** See documentation for more commands and details about the LEGO NXT Communication Protocol {{:alvarop:appendix_2-lego_mindstorms_nxt_direct_commands.pdf| NXT Direct Commands}}
  
-There are several methods you can you go about sending direct commands. There are programs that allow you to send data to certain COM ports, but most of these are only good for testing and not writing programs that utilize the COM ports. This tutorial will demonstrate the use of the C++ Serial Port class in Windows that can be used to write programs that send data to COM ports, thus allowing the user to send direct commands to the NXT Brick with a C++ program.+There are several methods you can you go about sending direct commands. There are programs that allow you to send data to certain COM ports, but most of these are only good for testing and not writing programs that utilize the COM ports. This tutorial will demonstrate the use of the C-plus-plus Serial Port class in Windows that can be used to write programs that send data to COM ports, thus allowing the user to send direct commands to the NXT Brick with a C-plus-plus program.
  
-<code>+<code c++ NXTBluetooth.cpp>
 /* /*
 Alvaro Pintado Alvaro Pintado
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  // Byte 00: Least Significant Byte: 12th byte  // Byte 00: Least Significant Byte: 12th byte
  // Byte 01: Most Significant Bit: 0th Byte  // Byte 01: Most Significant Bit: 0th Byte
- // Byte 02: Command response requested: 0x80 for response, 0x00 for no response + // Byte 02: Command response requested:         0x80 for response, 0x00 for no response 
- // Byte 03: Mode byte: 0x04 for controlling a motor + // Byte 03: Mode byte:                 0x04 for controlling a motor 
- // Byte 04: Power set in percentages:         0x64 is 100 (hex)+ // Byte 04: Power set in percentages:                         0x64 is 100 (hex)
  // Byte 05: Output mode byte: 0x07 for all ON  // Byte 05: Output mode byte: 0x07 for all ON
  // Byte 06: Regulation mode byte: 0x00 for idle  // Byte 06: Regulation mode byte: 0x00 for idle
- // Byte 07: Turn ratio: 0x00 + // Byte 07: Turn ratio: 0x00 
  // Byte 08: Motor run state: 0x20 for running  // Byte 08: Motor run state: 0x20 for running
  // Byte 09 - 13: Tacho limit: 0x00 0x00 0x00 0x00 for running forever  // Byte 09 - 13: Tacho limit: 0x00 0x00 0x00 0x00 for running forever
  // See LEGO Mindstorms NXT Communication Protocol documentation for details  // See LEGO Mindstorms NXT Communication Protocol documentation for details
  // motorA = 0, motor b = 1, motor c = 1  // motorA = 0, motor b = 1, motor c = 1
- wchar_t motorL = 2+ wchar_t motorL = [left motor port];  
- wchar_t motorR = 1;+ wchar_t motorR = [right motor port];
  cli::array<wchar_t, 1>^ driveL = { 0x0C, 0x00, 0x00, 0x04, motorL, 0x64, 0x07, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00 };  cli::array<wchar_t, 1>^ driveL = { 0x0C, 0x00, 0x00, 0x04, motorL, 0x64, 0x07, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00 };
  cli::array<wchar_t, 1>^ driveR = { 0x0C, 0x00, 0x00, 0x04, motorR, 0x64, 0x07, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00 };  cli::array<wchar_t, 1>^ driveR = { 0x0C, 0x00, 0x00, 0x04, motorR, 0x64, 0x07, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00 };
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   - Under the "COM Ports" menu are the current COM Ports assigned to different devices. Find the Outgoing Port for the NXT and take note of it. It will be used later in the tutorial.   - Under the "COM Ports" menu are the current COM Ports assigned to different devices. Find the Outgoing Port for the NXT and take note of it. It will be used later in the tutorial.
   - Open the sample code and read through the comments to get a general idea of what the program does   - Open the sample code and read through the comments to get a general idea of what the program does
 +  - Change the values for the motor variables MotorL and MotorR to your NXT Bot's corresponding ports
   - Build and run the the solution, when prompted, enter the COM port that the NXT Brick is currently utilizing   - Build and run the the solution, when prompted, enter the COM port that the NXT Brick is currently utilizing
  
nxt_pc_bluetooth.1475011344.txt.gz · Last modified: by alvaropintado