Update LED bar to handle message type field

- Process 't' field to distinguish between beat ('b') and update ('u') messages
- Beat messages: execute pattern immediately using current parameters
- Update messages: only update parameters, don't execute pattern
- Maintains backward compatibility with default to beat if 't' not specified
- Enables proper synchronization between controller and bars

src/patterns.py

@@ -15,6 +15,7 @@ class Patterns(PatternBase): # Inherit from PatternBase
         self.n3 = 1 # Default step factor
         self.oneshot = False # New: One-shot flag for patterns like fill_range
         self.patterns = {
+            "off": self.off,
             "flicker": self.flicker,
             "fill_range": self.fill_range,
             "n_chase": self.n_chase,
@@ -23,9 +24,25 @@ class Patterns(PatternBase): # Inherit from PatternBase
             "rainbow": self.rainbow,
             "specto": self.specto,
             "radiate": self.radiate,
+            # Shortened pattern names for optimized JSON payloads
+            "o": self.off,
+            "f": self.flicker,
+            "fr": self.fill_range,
+            "nc": self.n_chase,
+            "a": self.alternating,
+            "p": self.pulse,
+            "r": self.rainbow,
+            "s": self.specto,
+            "rd": self.radiate,
         }    
         self.step = 0
 
+    def off(self):
+        """Turn off all LEDs"""
+        self.fill((0, 0, 0))
+        self.n.write()
+        return self.delay
+
     def flicker(self):
         current_time = utime.ticks_ms()
         base_color = self.colors[0]