Refine calibration, chase, and spin patterns and add spin test

Increase calibration brightness, update chase to use the new logical ring abstraction, and make spin start from a cleared frame with symmetric arm speed, alongside a dedicated on-device spin test script.

Made-with: Cursor

pico/src/patterns/calibration.py

@@ -1,6 +1,6 @@
 """Calibration: strips 2 and 6 only. First 10 green, then alternating 10 blue / 10 red. 10% brightness."""
 
-BRIGHTNESS = 0.10
+BRIGHTNESS = 1
 BLOCK = 10
 STRIPS_ON = (2, 6)  # 0-based: 3rd and 7th strip only
 
@@ -22,6 +22,7 @@ class Calibration:
         green = _scale(GREEN, BRIGHTNESS)
         red = _scale(RED, BRIGHTNESS)
         blue = _scale(BLUE, BRIGHTNESS)
+        blue = (0,0,0)
         on_set = set(STRIPS_ON)
         for strip_idx, strip in enumerate(strips):
             n = strip.num_leds

pico/src/patterns/chase.py

@@ -35,7 +35,7 @@ class Chase:
         segment_length = n1 + n2
 
         # Calculate position from step_count
-        step_count = self.driver.step
+        step_count = int(self.driver.step)
         # Position alternates: step 0 adds n3, step 1 adds n4, step 2 adds n3, etc.
         if step_count % 2 == 0:
             # Even steps: (step_count//2) pairs of (n3+n4) plus one extra n3
@@ -52,23 +52,23 @@ class Chase:
 
         # If auto is False, run a single step and then stop
         if not preset.a:
-            # Clear all LEDs
-            self.driver.n.fill((0, 0, 0))
-
-            # Draw repeating pattern starting at position
-            for i in range(self.driver.num_leds):
+            # Draw repeating pattern starting at position across all physical strips
+            num_leds = self.driver.num_leds
+            num_strips = len(self.driver.strips)
+            for i in range(num_leds):
                 # Calculate position in the repeating segment
                 relative_pos = (i - position) % segment_length
                 if relative_pos < 0:
                     relative_pos = (relative_pos + segment_length) % segment_length
 
                 # Determine which color based on position in segment
-                if relative_pos < n1:
-                    self.driver.n[i] = color0
-                else:
-                    self.driver.n[i] = color1
+                color = color0 if relative_pos < n1 else color1
 
-            self.driver.n.write()
+                # Apply this logical LED to every physical strip via driver.set()
+                for strip_idx in range(num_strips):
+                    self.driver.set(strip_idx, i, color)
+
+            self.driver.show_all()
 
             # Increment step for next beat
             self.driver.step = step_count + 1
@@ -97,23 +97,23 @@ class Chase:
                 if position < 0:
                     position += max_pos
 
-                # Clear all LEDs
-                self.driver.n.fill((0, 0, 0))
-
-                # Draw repeating pattern starting at position
-                for i in range(self.driver.num_leds):
+                # Draw repeating pattern starting at position across all physical strips
+                num_leds = self.driver.num_leds
+                num_strips = len(self.driver.strips)
+                for i in range(num_leds):
                     # Calculate position in the repeating segment
                     relative_pos = (i - position) % segment_length
                     if relative_pos < 0:
                         relative_pos = (relative_pos + segment_length) % segment_length
 
                     # Determine which color based on position in segment
-                    if relative_pos < n1:
-                        self.driver.n[i] = color0
-                    else:
-                        self.driver.n[i] = color1
+                    color = color0 if relative_pos < n1 else color1
 
-                self.driver.n.write()
+                    # Apply this logical LED to every physical strip via driver.set()
+                    for strip_idx in range(num_strips):
+                        self.driver.set(strip_idx, i, color)
+
+                self.driver.show_all()
 
                 # Increment step
                 step_count += 1

pico/src/patterns/spin.py

@@ -2,7 +2,7 @@
 
 import utime
 
-SPAN = 10  # LEDs on each side of center (match Grab)
+SPAN = 0  # LEDs on each side of center (match Grab)
 LUT_SIZE = 256  # gradient lookup table entries
 
 
@@ -12,6 +12,9 @@ class Spin:
 
     def run(self, preset):
         strips = self.driver.strips
+
+        self.driver.fill((0, 0, 0))
+        self.driver.show_all()
         active_indices = (0, 4)
         c0 = preset.c[0]
         c1 = preset.c[1]
@@ -58,8 +61,8 @@ class Spin:
                 n = strip.num_leds
                 mid = midpoints[idx]
 
-                # Expand arms: inside (strip 1, idx 0) moves slower, outside (strip 5, idx 4) faster
-                step = max(1, rate // 2) if idx == 0 else rate
+                # Expand arms at the same rate on both sides
+                step = max(1, rate)
                 new_left = max(margin, left[idx] - step)
                 new_right = min(n - margin, right[idx] + step)