diff --git a/firmware/main.c b/firmware/main.c
index e162d74..1acd80d 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -4,6 +4,7 @@
 #include <ring-light/temp-adc.h>
 
 #define RING_MAX_LED	32u
+#define MAX_TEMP_CELSIUS 70
 
 enum ring_modes {
 	RING_MODE_ALL,                  /*!< control all LEDs at once */
@@ -63,30 +64,37 @@ int main(void)
 	TIM3->PSC = 0;
 	TIM3->CR1 = TIM_CR1_CEN;
 
-	/*! -# init TIM14 for PWM control of the magic LED driver */
-	/*! -# count up to 255 (0 bit resolution) */
+	/*! -# Init TIM14 for PWM control of the magic LED driver */
+	/*! -# Count up to 255 (8 bit resolution) */
 	TIM14->ARR = 0x00FFu;
 	TIM14->CNT = 0u;
 	TIM14->CCR1 = 0u;
-	/*! -# set prescaler to 16 ==> ca. 11 KHz */
+	/*! -# Set prescaler to 16 ==> ca. 11 KHz */
 	TIM14->PSC = 15u;
 	/*! -# PWM Mode 1 + prefetch */
 	TIM14->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1PE;
-	/*! -# enable Output compare 1 */
+	/*! -# Enable Output compare 1 */
 	TIM14->CCER = TIM_CCER_CC1E;
-	/*! -# finally enable TIM14 */
+	/*! -# Finally, enable TIM14 */
 	TIM14->CR2 = 0;
 	TIM14->CR1 = TIM_CR1_CEN;
 
-	/*! -# set initial state to all 25% */
+	/*! -# Set initial state to all 25% */
 	led_val = 64u;
-	mode    = RING_MODE_ALL;
+	mode    = RING_MODE_WHITE_DISCRETE;
 
 	temperature_adc_init();
 
 	SysTick_Config(800000);
 	while(1) {
 		temperature = temperature_adc_get_temp();
+
+		/*! -# Gradually dim down the LED brightness in case the temperature is too high */
+		if (temperature > ((MAX_TEMP_CELSIUS) * 10)) {
+			if (led_val > 20)
+				led_val--;
+		}
+
 		led_pwm_val = 0u;
 		switch (mode)
 		{