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wiki:v2:building_the_libpixyusb_example_on_linux2 [2018/06/29 14:38]
hohenheim [3.1. Color Identification Example (GetBlocksCPPDemo)]
wiki:v2:building_the_libpixyusb_example_on_linux2 [2018/06/29 15:23] (current)
hohenheim
Line 4: Line 4:
 ====== 1. Introduction ====== ====== 1. Introduction ======
  
-The libpixyusb ​library provides a software application programming interface (API) for communicating\\+The libpixyusb2 ​library provides a software application programming interface (API) for communicating\\
 with Pixy2 over USB. This allows you to write software that interfaces with Pixy2 like the PixyMon application. with Pixy2 over USB. This allows you to write software that interfaces with Pixy2 like the PixyMon application.
  
-The following procedure will outline the steps required for building the libpixyusb ​library and some example projects using the library. This procedure assumes the following:+The following procedure will outline the steps required for building the libpixyusb2 ​library and some example projects using the library. This procedure assumes the following:
  
-  * Your system has Linux Mint-17 installed+  * Your system has Linux Mint-18 installed
   * Your system is connected to the internet   * Your system is connected to the internet
  
-The Mint-17 distribution of Linux can be downloaded here: http://​www.linuxmint.com+The Mint-18 distribution of Linux can be downloaded here: http://​www.linuxmint.com
  
-Instructions for updating the Pixy2 firmware are here: [[wiki:​v2:​Uploading_New_Firmware|Uploading New Firmware]] +Although this procedure uses Linux Mint-18, it //should// work with any Linux distribution that uses the Debian package manager (e.g. Ubuntu).
- +
-Although this procedure uses Linux Mint-17, it //should// work with any Linux distribution that uses the Debian package manager (e.g. Ubuntu).+
  
  
 ====== 2. Procedure ====== ====== 2. Procedure ======
  
- +===== 2.1. Install dependencies for building ​libpixyusb2 ​=====
-===== 2.1. Install dependencies for building ​libpixyusb ​=====+
  
 Start the terminal application:​ Start the terminal application:​
Line 31: Line 28:
  
 ''​%%sudo apt-get install git libusb-1.0-0-dev g++%%''​ ''​%%sudo apt-get install git libusb-1.0-0-dev g++%%''​
- 
- 
- 
- 
- 
  
 ===== 2.2. Build libpixyusb2 ===== ===== 2.2. Build libpixyusb2 =====
- 
  
 ==== 2.2.1 Download Pixy2 source code ==== ==== 2.2.1 Download Pixy2 source code ====
Line 54: Line 45:
  
 {{:​undefined:​build_libpixyusb2.png?​400|}} {{:​undefined:​build_libpixyusb2.png?​400|}}
- 
- 
- 
- 
  
 ====== 3. Example projects ====== ====== 3. Example projects ======
Line 64: Line 51:
  
 {{:​undefined:​connect_pixy_usb.png?​400|}} {{:​undefined:​connect_pixy_usb.png?​400|}}
- 
  
 ===== 3.1. Color Identification Example (GetBlocksCPPDemo) ===== ===== 3.1. Color Identification Example (GetBlocksCPPDemo) =====
Line 74: Line 60:
   - Block information is displayed (as shown in the image above) if color signatures have been set and if the signatures are currently being detected by Pixy2.   - Block information is displayed (as shown in the image above) if color signatures have been set and if the signatures are currently being detected by Pixy2.
  
- +==== 3.1.1. Build the 'get_blocks_cpp_demo' example ====
-==== 3.1.1. Build the 'hello_pixy' example ====+
  
 In the terminal window type: In the terminal window type:
  
-''​%%/​pixy/scripts/build_hello_pixy.sh%%''​ +''​%%./pixy2/scripts/build_get_blocks_cpp_demo.sh%%''​
- +
-{{wiki:​img:​b08075eeb1c7200e464a5706b435b2f896f0bdc8.png?​400}}+
  
 +{{:​wiki:​v2:​build_get_blocks.png?​400|}}
  
 ==== 3.1.2. Start the example ==== ==== 3.1.2. Start the example ====
  
-To start the libpixyusb ​example, run 'hello_pixy' as root.+To start the get blocks ​example, run 'get_blocks_cpp_demo' as root.
  
 In the terminal window type: In the terminal window type:
  
-''​%%cd /pixy/build/hello_pixy%%''​\\ +''​%%cd ​./pixy2/build/get_blocks_cpp_demo%%''​\\ 
-''​%%sudo ./hello_pixy%%''​+''​%%sudo ./get_blocks_cpp_demo%%''​
  
-{{wiki:img:41f4b477ad456027832c83c4cb90c9b695a29b2e.png?400}}+{{:wiki:v2:get_blocks_demo.png?400|}}
  
-Block data received from Pixy is displayed in stdout.+Block data received from Pixy2 is displayed in stdout.
  
- +===== 3.2. Line Identification ​Example ​(GetLinesCPPDemo) ​=====
-===== 3.2. pan_tilt: An Object Tracking ​Example =====+
  
 This example does the following: This example does the following:
  
-  - Connects to Pixy using USB +  - Connects to Pixy2 using USB 
-  - Pixy will track objects with color signature '​0'​+  - Configures Pixy2 for line feature identification
  
-Before starting the tracking demo, make sure you've set color signature '​0'​. Look here: [[wiki:​v2:​Teach_Pixy_an_Object_2|Teach_Pixy_an_Object_2]] +==== 3.2.1. Build the 'get_lines_cpp_demo' example ====
- +
- +
-==== 3.2.1. Build the 'pan_tilt' example ====+
  
 In the terminal window type: In the terminal window type:
  
-''​%%/​pixy/scripts/build_pantilt_c_demo.sh%%''​ +''​%%./pixy2/scripts/build_get_lines_cpp_demo.sh%%''​
  
 ==== 3.2.2. Start the example ==== ==== 3.2.2. Start the example ====
  
-To start the pan_tilt demo, run 'pan_tilt' as root+To start the pan_tilt demo, run 'get_lines_cpp_demo' as root.
- +
-''​%%cd ../​build/​pantilt_in_c%%''​\\ +
-''​%%sudo ./​pantilt_c%%''​ +
- +
-{{wiki:​img:​ecd3c47f5b3959e279d1678becdfbbbc9854009c.jpg?​400}} +
- +
-Pixy should track objects that have color signature '​0'​ programmed. If the tracking is not smooth try the following:​ +
- +
-  * Use Pixymon to verify that Pixy is getting a good lock on the object. +
-  * Try making adjustments to the ambient lighting.+
  
-Note: If this example freezes, make sure that your version of libusb is at least 1.0.9.+''​%%cd ​./​pixy2/​build/​get_lines_cpp_demo%%''​\\ 
 +''​%%sudo ​./​get_lines_cpp_demo%%''​
  
 +{{:​wiki:​v2:​get_lines_demo.png?​400|}}
  
 ====== 3. Comments ====== ====== 3. Comments ======

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wiki/v2/building_the_libpixyusb_example_on_linux2.txt · Last modified: 2018/06/29 15:23 by hohenheim