diff --git a/src/main.cpp b/src/main.cpp
index a1c78a4..a9efb3e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -11,7 +11,7 @@ void setup() {
   // Initialize channels
   // channels 0-15, resolution 1-16 bits, freq limits depend on resolution
   // ledcSetup(uint8_t channel, uint32_t freq, uint8_t resolution_bits);
-  ledcSetup(0, 4000, 8); // 12 kHz PWM, 8-bit resolution
+  ledcSetup(0, 12000, 8); // 12 kHz PWM, 8-bit resolution
 }
 
 // the loop routine runs over and over again forever:
@@ -22,7 +22,7 @@ void loop() {
   brightness = brightness + fadeAmount;
 
   // reverse the direction of the fading at the ends of the fade:
-  if (brightness <= 0 || brightness >= 255) {
+  if (brightness <= 0 || brightness >= 254) {
     fadeAmount = -fadeAmount;
   }
   // wait for 30 milliseconds to see the dimming effect