light strips!

leds.py

@@ -7,6 +7,8 @@
 #
 
 from time import sleep
+import board
+import neopixel
 
 
 class Adafruit_CharLCD:
@@ -53,7 +55,7 @@ class Adafruit_CharLCD:
     LCD_5x10DOTS = 0x04
     LCD_5x8DOTS = 0x00
 
-    def __init__(self, pin_rs=24, pin_e=23, pin_b=4, pins_db=[17, 25, 27, 22], pin_rgb=18, GPIO=None):
+    def __init__(self, pin_rs=24, pin_e=23, pin_b=4, pins_db=[17, 25, 27, 22], GPIO=None):
         # Emulate the old behavior of using RPi.GPIO if we haven't been given
         # an explicit GPIO interface to use
         if not GPIO:
@@ -242,6 +244,27 @@ class Adafruit_CharLCD:
             else:
                 self.write4bits(ord(char), True)
 
+def defaultPattern(n):
+    return (n % 255, n % 255, n % 255)
+
+class LightStrip:
+  def __init__(self, data_pin = board.D18, string_length = 300, brightness = 1, pixel_order = neopixel.GRB):
+        # Emulate the old behavior of using RPi.GPIO if we haven't been given
+        # an explicit GPIO interface to use
+
+        self.np = neopixel.NeoPixel(data_pin, string_length, brightness = brightness, auto_write=False, pixel_order = pixel_order)
+        self.pattern = defaultPattern
+
+  def pattern(self, pattern_callback):
+    self.pattern = pattern_callback
+  
+  def tick(self):
+    np = self.np
+    n = np.n
+    for i in range(n):
+      col = self.pattern(i)
+      if np[i] != col:
+        np[i] = col
 
 debug_statements = True
 
@@ -275,6 +298,7 @@ def querycolor():
 
 def loop():
     lcd = Adafruit_CharLCD()
+    lights = LightStrip()
     level = 0
     level_max = 14
     idle = 0

requirements.txt

@@ -1 +1,2 @@
-rpi_ws281x==4.2.5
+rpi_ws281x==4.2.5
+adafruit-circuitpython-neopixel==6.0.0