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wiki:v1:hooking_up_pixy_to_a_beaglebone_black [2017/12/19 21:33] (current)
jfrench - Imported by DokuWiki Advanced Plugin
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 +====== Hooking up Pixy to a Beaglebone Black ======
 +
 +
 +====== 1. Introduction ======
 +
 +The following procedure outlines steps to build the '​hello_pixy'​ example on a BeagleBone Black using the Debian Linux Distribution (Debian Image 2014-05-14). The '​hello_pixy'​ example is a simple program that demonstrates how to read blocks and send commands to the Pixy over USB like the PixyMon application.
 +
 +You will need:
 +
 +  * BBB with Debian Linux Distribution installed to the eMMC
 +  * USB Hub with at least three ports
 +  * Pixy updated to the latest firmware (1.0.2)
 +  * libpixyusb version is 0.2
 +
 +The Debian Linux distribution for the BeagleBone Black is available from the BeagleBoard website here: http://​beagleboard.org/​latest-images/​\\
 +A procedure for flashing the BeagleBone Black can be found here: https://​learn.adafruit.com/​beaglebone-black-installing-operating-systems/​flashing-the-beaglebone-black
 +
 +
 +====== 2. Procedure ======
 +
 +
 +===== 2.1. BeagleBone Black Hardware Setup =====
 +
 +
 +==== 2.1.1. Using a USB hub, connect your keyboard, mouse, and Pixy to the BeagleBone Black. Using an Ethernet cable, connect your BeagleBone Black to the internet. Connect a video display to the BeagleBone Black using an HDMI cable. Power up the BeagleBone Black using either a USB cable or the 5V barrel connector. ====
 +
 +{{wiki:​img:​8fbcbba901d7a1526f2c8be21352636239a4425c.png?​400}}
 +
 +
 +===== 2.2. Software Dependency Installation =====
 +
 +From the main menu, start the LXTerminal application.
 +
 +In the terminal window type:
 +
 +''​%%sudo apt-get update%%''​
 +
 +
 +==== 2.2.1. Install libusb ====
 +
 +In the terminal window type:
 +
 +''​%%sudo apt-get install libusb-1.0-0.dev%%''​
 +
 +
 +==== 2.2.2. Install libboost ====
 +
 +In the terminal window type:
 +
 +''​%%sudo apt-get install libboost-all-dev%%''​
 +
 +
 +==== 2.2.3. Install cmake ====
 +
 +In the terminal window type:
 +
 +''​%%sudo apt-get install cmake%%''​
 +
 +
 +===== 2.3. Install Pixy Source Code =====
 +
 +In the terminal window type:
 +
 +''​%%git clone https://​github.com/​charmedlabs/​pixy.git%%''​
 +
 +
 +===== 2.4. Build and install libpixyusb =====
 +
 +
 +==== 2.4.1. Build the library ====
 +
 +In the terminal window type:
 +
 +''​%%cd pixy/​scripts%%''​\\
 +''​%%./​build_libpixyusb.sh%%''​
 +
 +
 +==== 2.4.2. Install the library ====
 +
 +In the terminal window type:
 +
 +''​%%sudo ./​install_libpixyusb.sh%%''​
 +
 +
 +===== 2.5. Running the '​hello_pixy'​ example =====
 +
 +
 +==== 2.5.1. Build the example ====
 +
 +In the terminal window type:
 +
 +''​%%./​build_hello_pixy.sh%%''​
 +
 +
 +==== 2.5.2. Run the example ====
 +
 +In the terminal window type:
 +
 +''​%%cd ../​build/​hello_pixy%%''​\\
 +''​%%sudo ./​hello_pixy%%''​
 +
 +The output should look like something below:
 +
 +''​%%Hello Pixy:​%%''​\\
 +''​%% Example Version: 0.3%%''​\\
 +''​%% Pixy Firmware Version: 1.0.2%%''​\\
 +''​%%Detecting blocks...%%''​\\
 +''​%%[sig:​ 1 w: 11 h: 17 x:149 y: 46]%%''​\\
 +''​%%[sig:​ 1 w:  9 h: 21 x:148 y: 46]%%''​\\
 +''​%%[sig:​ 1 w: 14 h: 21 x:151 y: 45]%%''​\\
 +''​%%[sig:​ 1 w: 10 h: 19 x:149 y: 47]%%''​\\
 +''​%%[sig:​ 1 w:  8 h: 16 x:148 y: 49]%%''​\\
 +''​%%[sig:​ 1 w:  9 h: 19 x:148 y: 45]%%''​\\
 +''​%%[sig:​ 1 w: 12 h:  6 x:150 y: 54]%%''​\\
 +''​%%[sig:​ 1 w: 15 h: 18 x:151 y: 46]%%''​\\
 +''​%%[sig:​ 1 w: 11 h:  5 x:149 y: 54]%%''​\\
 +''​%%[sig:​ 1 w:  9 h:  7 x:148 y: 49]%%''​\\
 +''​%%[sig:​ 1 w: 11 h:  5 x:149 y: 50]%%''​\\
 +''​%%[sig:​ 1 w:  8 h:  6 x:148 y: 47]%%''​\\
 +''​%%[sig:​ 1 w: 10 h:  7 x:149 y: 51]%%''​
 +
 +The example does the following
 +
 +  - Connects to Pixy using USB
 +  - Displays firmware version installed on Pixy
 +  - Block information is displayed if color signatures have been set and if the signatures are currently being detected by Pixy.
 +
 +
 +
 +
 +
 +
  

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wiki/v1/hooking_up_pixy_to_a_beaglebone_black.txt · Last modified: 2017/12/19 21:33 by jfrench