first commit LEGO Lighting code

Author: jedgarpark

LEGO_Lighting/code.py

@@ -0,0 +1,62 @@
+# SPDX-FileCopyrightText: Copyright (c) 2023 john park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+import asyncio
+from random import randint, uniform
+import busio
+import board
+import adafruit_aw9523
+
+# pin descriptions are based on physical LED placement
+# 0 bakery window, 1 lamp1 A, 2 lamp1 B, 3 bakery sconce, 4 lamp 2, 5 music sconce a,
+# 6 music sconce b, 7 music candle, 8 bakery red a, 9 bakery red b, 10 bakery green a,
+# 11 bakery green b
+
+i2c = busio.I2C(board.SCL1, board.SDA1)
+leddriver = adafruit_aw9523.AW9523(i2c)
+
+# Set all pins to outputs and LED (const current) mode
+leddriver.LED_modes = 0xFFFF
+leddriver.directions = 0xFFFF
+
+window_set = [8, 10, 9, 11]  # red/green string
+always_on_set = [0, 1, 2, 4]  # window and lanterns
+always_on_set_maxes = [100, 30, 30, 40]  # maximum brightness per light
+
+# lights that are always on
+for n in range(len(always_on_set)):
+    leddriver.set_constant_current(always_on_set[n], always_on_set_maxes[n])
+
+async def flicker(pin, min_curr, max_curr, interval):
+    while True:
+        rand_max_curr = randint(min_curr, max_curr)
+        for i in range(min_curr, rand_max_curr):
+            leddriver.set_constant_current(pin, i)  # aw9523 pin, current out of 255
+            await asyncio.sleep(0.07)
+        await asyncio.sleep(uniform(0.0, interval))
+
+async def string_lights(interval, max_curr):
+    while True:
+        for i in range(len(window_set)):
+            # fade up
+            for j in range(max_curr):
+                leddriver.set_constant_current(window_set[i], j)
+                print(j)
+                await asyncio.sleep(interval)
+        for i in range(len(window_set)):
+            # fade down
+            for j in range(max_curr):
+                leddriver.set_constant_current(window_set[i], max_curr-j)
+                print(j)
+                await asyncio.sleep(interval)
+
+
+async def main():
+    led0_task = asyncio.create_task(flicker(3, 3, 10, 0.7))  # music candle
+    led1_task = asyncio.create_task(flicker(5, 6, 12, 0.7))  # music sconce a
+    led2_task = asyncio.create_task(flicker(6, 6, 12, 0.7))  # music sconce b
+    led3_task = asyncio.create_task(flicker(7, 3, 10, 0.7))  # music candle
+    led4_task = asyncio.create_task(string_lights(0.03, 30))
+    await asyncio.gather(led0_task, led1_task, led2_task, led3_task, led4_task)
+
+asyncio.run(main())