adding set_pixel_line which fills a particular section of pixels

ws2812b.py

@@ -26,6 +26,11 @@ class ws2812b:
         self.sm.active(1)
         self.num_leds = num_leds
         self.delay = delay
+    
+      # Set an array of pixels starting from "pixel1" to "pixel2" to the desired color.
+    def set_pixel_line(self, pixel1, pixel2, red, green, blue):
+        for i in range(pixel1, pixel2+1):
+            self.set_pixel(i, red, green, blue)
 
     def set_pixel(self, pixel_num, red, green, blue):
         self.pixels[pixel_num] = blue | red << 8 | green << 16
@@ -39,5 +44,3 @@ class ws2812b:
         for i in range(self.num_leds):
             self.set_pixel(i, red, green, blue)
         time.sleep(self.delay)
-        
-