RGB Pixel Array Driver for the Raspberry Pi

Project Page: https://thegreatgeekery.blogspot.ca/2012/08/raspberry-pi-and-ws2801.html

• Originally based on https://learn.adafruit.com/light-painting-with-raspberry-pi/software

              sudo python pixelpi.py --help
              usage: pixelpi.py [-h] [-v]
                                {strip,array,pixelinvaders,fade,chase,pan,all_on,all_off,wiimote}
                                ...
  
              positional arguments:
                                {strip,array,pixelinvaders,fade,chase,pan,all_on,all_off,wiimote}
                                sub command help?
                                strip               Stip Mode - Display an image using POV and a LED strip
                                array               Array Mode - Display an image on a pixel array
                                pixelinvaders       Pixelinvaders Mode - setup pixelpi as a Pixelinvaders slave
                                fade                Fade Mode - Fade colors on all LEDs
                                chase               Chase Mode - Chase display test mode
                                pan                 Pan Mode - Pan an image across an array
                                all_on              All On Mode - Turn all LEDs On
                                all_off             All Off Mode - Turn all LEDs Off
                                wiimote             Wiimote Mode - move and LED witht he Wiimote
  
              optional arguments:
                                -h, --help            show this help message and exit
                                -v, --version         show program's version number and exit
  
  
              sudo python pixelpi.py strip --help 
                                usage: pixelpi.py strip [-h] [--chip {WS2801,LDP8806}] [--verbose]
                                                        [--spi_dev SPI_DEV_NAME] [--refresh_rate REFRESH_RATE]
                                                       [--filename FILENAME] --array_height ARRAY_HEIGHT
  
                                optional arguments:
                                  -h, --help            show this help message and exit
                                  --chip {WS2801,LDP8806} Specify chip type LDP8806 or WS2801
                                  --verbose             enable verbose mode
                                  --spi_dev SPI_DEV_NAME Set the SPI device descriptor
                                  --refresh_rate REFRESH_RATE  Set the refresh rate in ms (default 500ms)
                                  --filename FILENAME   Specify the image file eg: hello.png
                                  --array_height ARRAY_HEIGHT   Set the Y dimension of your pixel array (height)
  
  
              sudo python pixelpi.py array --help 
              usage: pixelpi.py array [-h] [--chip {WS2801,LDP8806}] [--verbose]
                    [--spi_dev SPI_DEV_NAME] [--refresh_rate REFRESH_RATE]
                    [--filename FILENAME] --array_width ARRAY_WIDTH
                    --array_height ARRAY_HEIGHT
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
                --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --filename FILENAME   Specify the image file eg: hello.png
                --array_width ARRAY_WIDTH
                                      Set the X dimension of your pixel array (width)
                --array_height ARRAY_HEIGHT
                    Set the Y dimension of your pixel array (height)
  
  
  
              sudo python pixelpi.py pixelinvaders --help 
              usage: pixelpi.py pixelinvaders [-h] [--chip {WS2801,LDP8806}] [--verbose]
                            [--spi_dev SPI_DEV_NAME]
                            [--refresh_rate REFRESH_RATE] --udp-ip UDP_IP
                            --udp-port UDP_PORT
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
                --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --udp-ip UDP_IP       Used for PixelInvaders mode, listening address
                --udp-port UDP_PORT   Used for PixelInvaders mode, listening port
  
  
              sudo python pixelpi.py fade --help 
              usage: pixelpi.py fade [-h] [--chip {WS2801,LDP8806}] [--verbose]
                   [--spi_dev SPI_DEV_NAME] [--refresh_rate REFRESH_RATE]
                   --num_leds NUM_LEDS
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
                --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --num_leds NUM_LEDS   Set the number of LEDs in the string
  
  
  
              sudo python pixelpi.py chase --help 
              usage: pixelpi.py chase [-h] [--chip {WS2801,LDP8806}] [--verbose]
                    [--spi_dev SPI_DEV_NAME] [--refresh_rate REFRESH_RATE]
                    --num_leds NUM_LEDS
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
                --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --num_leds NUM_LEDS   Set the number of LEDs in the string
  
  
  
              sudo python pixelpi.py pan --help 
              usage: pixelpi.py pan [-h] [--chip {WS2801,LDP8806}] [--verbose]
                  [--spi_dev SPI_DEV_NAME] [--refresh_rate REFRESH_RATE]
                  [--filename FILENAME] --array_width ARRAY_WIDTH
                  --array_height ARRAY_HEIGHT
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
                --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --filename FILENAME   Specify the image file eg: hello.png
                --array_width ARRAY_WIDTH
                    Set the X dimension of your pixel array (width)
                --array_height ARRAY_HEIGHT
                    Set the Y dimension of your pixel array (height)
  
  
  
              sudo python pixelpi.py all_on --help 
              usage: pixelpi.py all_on [-h] [--chip {WS2801,LDP8806}] [--verbose]
                     [--spi_dev SPI_DEV_NAME]
                     [--refresh_rate REFRESH_RATE] --num_leds NUM_LEDS
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
                --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --num_leds NUM_LEDS   Set the number of LEDs in the string
  
  
  
              sudo python pixelpi.py all_off --help 
              usage: pixelpi.py all_off [-h] [--chip {WS2801,LDP8806}] [--verbose]
                      [--spi_dev SPI_DEV_NAME]
                      [--refresh_rate REFRESH_RATE] --num_leds NUM_LEDS
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
               --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --num_leds NUM_LEDS   Set the number of LEDs in the string
  
  
  
              sudo python pixelpi.py wiimote --help 
              usage: pixelpi.py wiimote [-h] [--chip {WS2801,LDP8806}] [--verbose]
                      [--spi_dev SPI_DEV_NAME]
                      [--refresh_rate REFRESH_RATE] --num_leds NUM_LEDS
  
              optional arguments:
                -h, --help            show this help message and exit
                --chip {WS2801,LDP8806}
                    Specify chip type LDP8806 or WS2801
                --verbose             enable verbose mode
                --spi_dev SPI_DEV_NAME
                    Set the SPI device descriptor
                --refresh_rate REFRESH_RATE
                    Set the refresh rate in ms (default 500ms)
                --num_leds NUM_LEDS   Set the number of LEDs in the string