Expand browser editor runtime and LED simulation workflows.

Add Docker deployment support, richer Selenium/LED pattern tests, in-browser diagnostics, responsive UI improvements, and 16x16 panel simulation tooling to speed iteration and hardware-style prototyping.

Made-with: Cursor

workspace/code/neopixel_time_test.py

@@ -0,0 +1,32 @@
+"""NeoPixel time-based animation test for the browser simulator."""
+
+from machine import Pin
+import neopixel
+import time
+
+
+np = neopixel.NeoPixel(Pin(4), 50)
+
+
+def wheel(pos: int) -> tuple[int, int, int]:
+    """Generate rainbow colors across 0-255 positions."""
+    pos = 255 - (pos & 255)
+    if pos < 85:
+        return (255 - pos * 3, 0, pos * 3)
+    if pos < 170:
+        pos -= 85
+        return (0, pos * 3, 255 - pos * 3)
+    pos -= 170
+    return (pos * 3, 255 - pos * 3, 0)
+
+
+print("Starting NeoPixel time test...")
+for frame in range(60):
+    for i in range(len(np)):
+        np[i] = wheel((i * 256 // len(np) + frame * 4) & 255)
+    np.write()
+    time.sleep(0.08)
+
+np.fill((0, 0, 0))
+np.write()
+print("NeoPixel time test complete.")