si_7-IRIS/LEDfunctions.py

#!/usr/bin/env python
#defines appearance for LEDs, such as bouncing effect, circular effect.
import Adafruit_WS2801
import Adafruit_GPIO.SPI as SPI
import time

# count of pixels:
PIXEL_COUNT = 19

# specify a hardware SPI connection on /dev/spidev0.0:
SPI_PORT   = 0
SPI_DEVICE = 0
pixels = Adafruit_WS2801.WS2801Pixels(PIXEL_COUNT, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE))


# colors of each character
color_guru = [146, 200, 0] # purple
color_pirate = [255, 0, 200] # yellow
color_announcer= [0, 100, 200] # aqua blue
color_activation= [255, 255, 255] # white

def leds_color_intensity(color, intensity):
    # color: a list of 3 rgb components 0 to 255
    # intensity: between 0 and 1
    # pixN: number of pixels
    r = color[0]
    g = color[1]
    b = color[2]
    for i in range(PIXEL_COUNT):
        pixels.set_pixel_rgb(i,
                             int(r*intensity),
                             int(g*intensity),
                             int(b*intensity) )  # Set the RGB color (0-255) of pixel i
    pixels.show()



# LEDs grow and shrink
def leds_color_length(color, intensity):
    # color: a list of 3 rgb components 0 to 255
    # intensity: between 0 and 1
    # pixN: number of pixels
    r = color[0]
    g = color[1]
    b = color[2]
    led_length = int(PIXEL_COUNT * intensity)
    for i in range(led_length):
        pixels.set_pixel_rgb(i,
                             int(r),
                             int(g),
                             int(b) )  # Set the RGB color (0-255) of pixel i
        time.sleep(0.01)
    pixels.show()
    pixels.clear()



# LEDS for pirate
def leds_pirate_blink(color):
    # color: a list of 3 rgb components 0 to 255
    # pixN: number of pixels
    r = color[0]
    g = color[1]
    b = color[2]
    while True:

        pixels.clear()
        pixels.show()

        time.sleep(0.02)
        for i in range(PIXEL_COUNT):
            pixels.set_pixel_rgb(i,
                                 int(r),
                                 int(g),
                                 int(b) )  # Set the RGB color (0-255) of pixel i

        pixels.show()
        time.sleep(0.01)


def leds_pirate_circle(color):
    # color: a list of 3 rgb components 0 to 255
    # pixN: number of pixels
    r = color[0]
    g = color[1]
    b = color[2]
    while True:

        for i in range(PIXEL_COUNT):
            pixels.set_pixel_rgb(i,
                                 int(r),
                                 int(g),
                                 int(b) )  # Set the RGB color (0-255) of pixel i
            pixels.show()
            time.sleep(0.01)

        pixels.clear()
        pixels.show()
        time.sleep(0.3)


def leds_pirate_bounce(color):
    # color: a list of 3 rgb components 0 to 255
    # pixN: number of pixels
    r = color[0]
    g = color[1]
    b = color[2]
    leds  = list(range(PIXEL_COUNT))+ (list(range(PIXEL_COUNT))[::-1])
    n = 0
    while True:
        n = n + 1
        for i in leds:
            pixels.set_pixel_rgb(i,
                                 int(r),
                                 int(g),
                                 int(b) )  # Set the RGB color (0-255) of pixel i
            pixels.show()
            time.sleep(0.01)
            pixels.clear()
            pixels.show()
        time.sleep(0.3)

        if n > 3:
            break

# activation mode is one white leds bounce
def leds_activation(color):
    # color: a list of 3 rgb components 0 to 255
    # pixN: number of pixels
    r = color[0]
    g = color[1]
    b = color[2]
    leds  = list(range(PIXEL_COUNT))+ (list(range(PIXEL_COUNT))[::-1])
    n = 0
    while True:
        n = n + 1
        for i in leds:
            pixels.set_pixel_rgb(i,
                                 int(r),
                                 int(g),
                                 int(b) )  # Set the RGB color (0-255) of pixel i
            pixels.show()
            time.sleep(0.01)
            pixels.clear()
            pixels.show()
        time.sleep(0.1)

        if n > 0:
            break


pixels.clear() # Clear all the pixels to turn them off.