first commit Ambient Color Control Pad code

Author: jedgarpark

Ambient_Color_Control_Pad/ambient_color_control_pad.py

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+# Ambient Color Control Pad
+# NeoTrellis to select colors of NeoPixel strip
+# NeoTrellis connected to Feather M4 (need the extra memory) SCL, SDA
+# NeoPixel 120 strip connected to pin D5
+# NeoPixel strip powered over 5V 2A DC wall power supply
+# Latching on/off button RGB connects En to GND, LED to D13
+
+import time
+import board
+from board import SCL, SDA
+import busio
+import neopixel
+from adafruit_neotrellis.neotrellis import NeoTrellis
+from digitalio import DigitalInOut, Direction
+
+button_LED = DigitalInOut(board.D13)
+button_LED.direction = Direction.OUTPUT
+button_LED.value = True
+
+print("Ambient_Color_Controller.py")
+
+pixel_pin = board.D5
+num_pixels = 120
+
+pixels = neopixel.NeoPixel(pixel_pin, num_pixels, auto_write=False)
+
+# create the i2c object for the trellis
+i2c_bus = busio.I2C(SCL, SDA)
+
+# create the trellis
+trellis = NeoTrellis(i2c_bus)
+
+# color definitions
+OFF = (0, 0, 0)
+RED = (255, 0, 0)
+YELLOW = (255, 150, 0)
+GREEN = (0, 255, 0)
+YELLOW_GREEN = (127, 255, 0)
+CYAN = (0, 255, 255)
+LIGHT_BLUE = (0, 127, 255)
+BLUE = (0, 0, 255)
+PURPLE = (127, 0, 255)
+ORANGE = (255, 80, 0)
+PINK = (255, 0, 255)
+ROUGE = (255, 0, 127)
+WHITE = (100, 100, 100)
+WHITE_WARM = (120, 100, 80)
+WHITE_COOL = (80, 100, 120)
+WHITE_GREEN = (80, 120, 100)
+# dim versions
+RED_ALT = (25, 0, 0)
+YELLOW_ALT = (15, 15, 0)
+YELLOW_GREEN_ALT = (12, 25, 0)
+GREEN_ALT = (0, 25, 0)
+CYAN_ALT = (0, 25, 25)
+LIGHT_BLUE_ALT = (0, 12, 25)
+BLUE_ALT = (0, 0, 25)
+PURPLE_ALT = (18, 0, 25)
+ORANGE_ALT = (25, 8, 0)
+PINK_ALT = (25, 0, 25)
+ROUGE_ALT = (25, 0, 13)
+WHITE_ALT = (10, 10, 10)
+
+COLORS = [  # normal button color states
+    RED, ORANGE, YELLOW, YELLOW_GREEN,
+    GREEN, CYAN, LIGHT_BLUE, BLUE,
+    PURPLE, PINK, ROUGE, WHITE,
+    WHITE_WARM, WHITE_COOL, WHITE_GREEN, OFF,
+    # pressed button color states
+    RED_ALT, ORANGE_ALT, YELLOW_ALT, YELLOW_GREEN_ALT,
+    GREEN_ALT, CYAN_ALT, LIGHT_BLUE_ALT, BLUE_ALT,
+    PURPLE_ALT, PINK_ALT, ROUGE_ALT, WHITE_ALT,
+    WHITE_ALT, WHITE_ALT, WHITE_ALT, OFF]
+
+pixels.fill(COLORS[1])  # turn on the strip
+pixels.show()
+
+# this will be called when button events are received
+def blink(event):
+    # turn the LED on when a rising edge is detected
+    # do the fade for the NeoPixel strip
+    if event.edge == NeoTrellis.EDGE_RISING:
+        trellis.pixels[event.number] = COLORS[event.number+16]
+        for fade_i in range(num_pixels):  # fade off
+            pixels[fade_i] = (OFF)
+            pixels.show()
+            time.sleep(0.005)
+        # for fade_i in range(num_pixels):  #fade up
+        reverse_fade_i = num_pixels - 1
+        while reverse_fade_i >= 0:  # fade backwards
+            pixels[reverse_fade_i] = (COLORS[event.number])
+            reverse_fade_i -= 1
+            pixels.show()
+            time.sleep(0.03)
+    # turn the LED off when a rising edge is detected
+    elif event.edge == NeoTrellis.EDGE_FALLING:
+        trellis.pixels[event.number] = COLORS[event.number]
+# boot up animation
+trellis.pixels.brightness = 0.2
+for i in range(16):
+    # activate rising edge events on all keys
+    trellis.activate_key(i, NeoTrellis.EDGE_RISING)
+    # activate falling edge events on all keys
+    trellis.activate_key(i, NeoTrellis.EDGE_FALLING)
+    # set all keys to trigger the blink callback
+    trellis.callbacks[i] = blink
+
+    # cycle the LEDs on startup
+    trellis.pixels[i] = COLORS[i]
+    time.sleep(.05)
+
+print("  Ambient Color Control Pad")
+print("    ---press a button to change the ambient color---")
+while True:
+
+    # call the sync function call any triggered callbacks
+    trellis.sync()
+    # the trellis can only be read every 17 millisecons or so
+    time.sleep(.02)