pixelDriver.py

# NeoPixel library strandtest example
# Author: Tony DiCola (tony@tonydicola.com)
#
# Direct port of the Arduino NeoPixel library strandtest example.  Showcases
# various animations on a strip of NeoPixels.
import time
import state
import updateBlynk
from neopixel import *

# Check for user imports
try:
            import conflocal as config
except ImportError:
            import config



# LED strip configuration:
LED_COUNT      = 16      # Number of LED pixels.
LED_PIN        = config.pixelPin      # GPIO pin connected to the pixels (must support PWM!).
LED_FREQ_HZ    = 800000  # LED signal frequency in hertz (usually 800khz)
#LED_DMA        = 10      # DMA channel to use for generating signal (try 10)
LED_DMA        = 5      # DMA channel to use for generating signal (try 10)
LED_BRIGHTNESS = 255     # Set to 0 for darkest and 255 for brightest
LED_INVERT     = False   # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL    = 0
LED_STRIP      = ws.SK6812_STRIP_RGBW
#LED_STRIP      = ws.SK6812W_STRIP

#strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL, LED_STRIP)
# Intialize the library (must be called once before other functions).
#strip.begin()

# Define functions which animate LEDs in various ways.
def colorWipe(strip, color, wait_ms=50):
	"""Wipe color across display a pixel at a time."""
	for i in range(strip.numPixels()):
		strip.setPixelColor(i, color)
		strip.show()
		time.sleep(wait_ms/1000.0)

def theaterChase(strip, color, wait_ms=50, iterations=10):
	"""Movie theater light style chaser animation."""
	for j in range(iterations):
		for q in range(3):
			for i in range(0, strip.numPixels(), 3):
				strip.setPixelColor(i+q, color)
			strip.show()
			time.sleep(wait_ms/1000.0)
			for i in range(0, strip.numPixels(), 3):
				strip.setPixelColor(i+q, 0)

def wheel(pos):
	"""Generate rainbow colors across 0-255 positions."""
	if pos < 85:
		return Color(pos * 3, 255 - pos * 3, 0)
	elif pos < 170:
		pos -= 85
		return Color(255 - pos * 3, 0, pos * 3)
	else:
		pos -= 170
		return Color(0, pos * 3, 255 - pos * 3)

def rainbow(strip, wait_ms=20, iterations=1):
	"""Draw rainbow that fades across all pixels at once."""
	for j in range(256*iterations):
		for i in range(strip.numPixels()):
			strip.setPixelColor(i, wheel((i+j) & 255))
		strip.show()
		time.sleep(wait_ms/1000.0)

def rainbowCycle(strip, wait_ms=20, iterations=5):
	"""Draw rainbow that uniformly distributes itself across all pixels."""
	for j in range(256*iterations):
		for i in range(strip.numPixels()):
			strip.setPixelColor(i, wheel(((i * 256 / strip.numPixels()) + j) & 255))
		strip.show()
		time.sleep(wait_ms/1000.0)

def theaterChaseRainbow(strip, wait_ms=50):
	"""Rainbow movie theater light style chaser animation."""
	for j in range(256):
		for q in range(3):
			for i in range(0, strip.numPixels(), 3):
				strip.setPixelColor(i+q, wheel((i+j) % 255))
			strip.show()
			time.sleep(wait_ms/1000.0)
			for i in range(0, strip.numPixels(), 3):
				strip.setPixelColor(i+q, 0)



###############
# Flash LED
###############

def blinkLED(PixelLock, pixel, color, times, length):
    if (config.runLEDs == True):
        
        if (PixelLock.acquire(False) == False):
            # We are locked so return - Don't wait
            if (config.SWDEBUG):
                print ("N--->Blink LED:Thread Locked")
            return
        try:
            strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL, LED_STRIP)
            # Intialize the library (must be called once before other functions).
            strip.begin()
        
            if (config.SWDEBUG):
                print "N--->Blink LED:%i/%i/%i/%6.2f" % (pixel, color, times, length)
    
            for x in range(0, times):
                strip.setPixelColor(0, color)
                strip.show()
                time.sleep(length)
	
            strip.setPixelColor(0, Color(0,0,0))
            strip.show()
        

        except:
            pass
        PixelLock.release()


    
def statusLEDs(PixelLock):
    global strip

    '''
    if (PixelLock.acquire(False) == False):
        # We are locked so return - Don't wait
        if (config.SWDEBUG):
            print ("N--->status LEDs :Thread Locked")
        return
    '''
    if (PixelLock.acquire(False) == False):
         # We are locked so return - Don't wait
         if (config.SWDEBUG):
             print ("N--->statusLEDs:Thread Locked")
         return
    
    try:
        strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL, LED_STRIP)
        # Intialize the library (must be called once before other functions).
        strip.begin()
    
        if (config.SWDEBUG):
            print ("N ---->statusLEDs Running")
            print ("state.runRainbow =", state.runRainbow)
            print ("state.flashStrip =", state.flashStrip)
         
        if (config.runLEDs == True):
            if (state.flashStrip == True):
                updateBlynk.stopFlash()
                state.flashStrip = False
             
                updateBlynk.blynkStatusTerminalUpdate("Flashing Strips")
                # Now do the flash
    
                for i in range(0,16):
                    strip.setPixelColor(i,Color(255,255,255))
                strip.show()
                time.sleep(0.5)
                for i in range(0,16):
                    strip.setPixelColor(i,Color(0,0,0))
                strip.show()


            while (state.runRainbow == True):
                if (config.SWDEBUG):
                    print "rainbow start"
                rainbow(strip)
                #rainbowCycle(strip)
                #theaterChaseRainbow(strip)
                if (config.SWDEBUG):
                    print "rainbow end"

            for i in range(0,16):
                strip.setPixelColor(i,Color(0,0,0))
    
            strip.show()


        else:
            for i in range(0,16):
                strip.setPixelColor(i,Color(0,0,0))
                strip.show()
    except:
        pass
    PixelLock.release()



"""

# Main program logic follows:
if __name__ == '__main__':
	# Create NeoPixel object with appropriate configuration.
	strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL, LED_STRIP)
	# Intialize the library (must be called once before other functions).
	strip.begin()

	print ('Press Ctrl-C to quit.')
/bin/bash: tx: command not found
		# Color wipe animations.
		colorWipe(strip, Color(255, 0, 0))  # Red wipe
		colorWipe(strip, Color(0, 255, 0))  # Blue wipe
		colorWipe(strip, Color(0, 0, 255))  # Green wipe
		colorWipe(strip, Color(0, 0, 0, 255))  # White wipe
		colorWipe(strip, Color(255, 255, 255))  # Composite White wipe
		colorWipe(strip, Color(255, 255, 255, 255))  # Composite White + White LED wipe
		# Theater chase animations.
		theaterChase(strip, Color(127, 0, 0))  # Red theater chase
		theaterChase(strip, Color(0, 127, 0))  # Green theater chase
		theaterChase(strip, Color(0, 0, 127))  # Blue theater chase
		theaterChase(strip, Color(0, 0, 0, 127))  # White theater chase
		theaterChase(strip, Color(127, 127, 127, 0))  # Composite White theater chase
		theaterChase(strip, Color(127, 127, 127, 127))  # Composite White + White theater chase
		# Rainbow animations.
		rainbow(strip)
		rainbowCycle(strip)
		theaterChaseRainbow(strip)


"""