diff --git a/main.py b/main.py
index 29a47e5..54f6ecb 100644
--- a/main.py
+++ b/main.py
@@ -13,6 +13,14 @@
     board.IO21,
     board.IO26, # type: ignore
     board.IO47,
+    board.IO33, # type: ignore
+    board.IO34, # type: ignore 
+    board.IO48,
+    board.IO35,
+    board.IO36,
+    board.IO37,
+    board.IO38,
+    board.IO39
     # do the rest...
 ]
 
@@ -21,16 +29,48 @@
 for led in leds:
     led.direction = Direction.OUTPUT
 
-# main loop
-while True:
-    volume = microphone.value
+# Set a new max volume for normalization 
+max_volume_value = 42000  # Adjust based on observed sensitivity 
+decay_rate = 0.05  # how fast or slow the volume goes down 
+
+# Track previous displayed volume
+displayed_volume = 0
+
+# Function to normalize and filter microphone volume level
+def get_volume():
+    # Read raw microphone value
+    raw_value = microphone.value
+    
+    # divide the raw value measured by the max volume set to get the normalized value between 0 and 1
+    normalized_value = raw_value / max_volume_value
+    
+    # Set a threshold to filter out low noise values
+    volume = max(0, normalized_value - 0.1)  # Adjust threshold if necessary
+    
+    return volume
 
-    print(volume)
+# Function to update LEDs based on the displayed volume level
+def update_leds(volume):
+    led_count = len(leds)
+    led_to_turn_on = int(volume * led_count)
+    
+    # Turn on LEDs up to led_to_turn_on and turn off the rest
+    for i in range(led_count):
+        leds[i].value = i < led_to_turn_on
+
+# Main loop
+while True:
+    volume = get_volume()  # Get the current volume level
+    print(f"Current volume): {volume}")  # Print the volume for monitoring
 
-    leds[0].value = not leds[0].value
-    leds[1].value = not leds[0].value
+    # Fast rise, slow decay logic
+    if volume > displayed_volume:
+        displayed_volume = volume  # Immediate update if volume is higher
+    else:
+        displayed_volume = max(0, displayed_volume - decay_rate)  # Gradual decay
 
-    sleep(1)
+    update_leds(displayed_volume)  # Update LEDs based on displayed volume
+    sleep(0.05)                    # Small delay for smooth updates
 
     # instead of blinking,
     # how can you make the LEDs