diff --git a/main.cpp b/main.cpp
index 4f1f318..fda6587 100644
--- a/main.cpp
+++ b/main.cpp
@@ -52,12 +52,17 @@ void LED_control(bool d1, bool d2, bool d3);
 
 // globalni promenna pro stav tlacitka SW1
 bool SW1_pressed;
+/* we'll do blinking, but not by default, values are -1/1 */
+int blinkingpls = -1;
 // Promenna state je nove lokalni uvnitr tasku (funkce) pro blikani
 
 // Prototypy funkci
 void TaskSwitches(void);
 void TaskEffect(void);
 void TaskGreenLed(void);
+void TaskL1(void);
+void TaskL2(void);
+void TaskL3(void);
 
 int main(void) {
 	// inicializace ovladace pinu a delay
@@ -68,6 +73,9 @@ int main(void) {
 		TaskSwitches();
 		TaskEffect();
 		TaskGreenLed();
+        TaskL1();
+        TaskL2();
+        TaskL3();
 
 	}	// while
 
@@ -78,10 +86,17 @@ int main(void) {
 // Uloha, ktera se stara o obsluhu tlacitek
 void TaskSwitches(void)
 {
-	if (switch1_read() == SWITCH_PRESSED)
+    if (switch1_read() == SWITCH_PRESSED) {
 		SW1_pressed = true;
-	else
+        /* ignoring the legacy option above, when pressing the button the value of either
+         * 1 or -1 is multiplied by -1 resulting in the value assigned back to the variable
+         * being - again - either 1 or -1 (meaning the opposite of the one before) creating
+         * an easily switchable thingy
+         */
+        blinkingpls *= -1;
+    } else {
 		SW1_pressed = false;
+    }
 }
 
 // Uloha, ktera se stara o blikani LED
@@ -152,6 +167,143 @@ void TaskEffect(void) {
 // Doba svitu/zhasnuti zelene LED
 #define		GREEN_ON_DELAY		200
 #define		GREEN_OFF_DELAY		700
+/* as per the requirements */
+#define L1_ON_DELAY 500
+#define L1_OFF_DELAY 500
+#define L2_ON_DELAY 200
+#define L2_OFF_DELAY 650
+#define L3_ON_DELAY 800
+#define L3_OFF_DELAY 300
+
+void TaskL1() {
+    static enum {
+        ST_LED_ON,
+        ST_ON_WAIT,
+        ST_LED_OFF,
+        ST_OFF_WAIT
+
+    } state = ST_LED_ON;
+
+    static uint32_t start_time;
+    if (blinkingpls > 0) {
+
+        switch (state) {
+
+        case ST_LED_ON:
+            pinWrite(LED1, LOW);
+            start_time = SYSTICK_millis();
+            state = ST_ON_WAIT;
+            break;
+
+        case ST_ON_WAIT:
+            if (SYSTICK_millis() - start_time >= L1_ON_DELAY)
+                state = ST_LED_OFF;
+            break;
+
+        case ST_LED_OFF:
+            pinWrite(LED1, HIGH);
+            start_time = SYSTICK_millis();
+            state = ST_OFF_WAIT;
+            break;
+
+        case ST_OFF_WAIT:
+            if (SYSTICK_millis() - start_time >= L1_OFF_DELAY)
+                state = ST_LED_ON;
+            break;
+        }   // switch
+    } else {
+        /* turn the LED off and reset its state */
+        pinWrite(LED1, HIGH);
+        state = ST_LED_ON;
+    }
+}
+
+void TaskL2() {
+    static enum {
+        ST_LED_ON,
+        ST_ON_WAIT,
+        ST_LED_OFF,
+        ST_OFF_WAIT
+
+    } state = ST_LED_ON;
+
+    static uint32_t start_time;
+    if (blinkingpls > 0) {
+
+        switch (state) {
+
+        case ST_LED_ON:
+            pinWrite(LED2, LOW);
+            start_time = SYSTICK_millis();
+            state = ST_ON_WAIT;
+            break;
+
+        case ST_ON_WAIT:
+            if (SYSTICK_millis() - start_time >= L2_ON_DELAY)
+                state = ST_LED_OFF;
+            break;
+
+        case ST_LED_OFF:
+            pinWrite(LED1, HIGH);
+            start_time = SYSTICK_millis();
+            state = ST_OFF_WAIT;
+            break;
+
+        case ST_OFF_WAIT:
+            if (SYSTICK_millis() - start_time >= L2_OFF_DELAY)
+                state = ST_LED_ON;
+            break;
+        }   // switch
+    } else {
+        /* turn the LED off and reset its state */
+        pinWrite(LED2, HIGH);
+        state = ST_LED_ON;
+    }
+}
+
+void TaskL3() {
+    static enum {
+        ST_LED_ON,
+        ST_ON_WAIT,
+        ST_LED_OFF,
+        ST_OFF_WAIT
+
+    } state = ST_LED_ON;
+
+    static uint32_t start_time;
+    if (blinkingpls > 0) {
+
+        switch (state) {
+
+        case ST_LED_ON:
+            pinWrite(LED3, LOW);
+            start_time = SYSTICK_millis();
+            state = ST_ON_WAIT;
+            break;
+
+        case ST_ON_WAIT:
+            if (SYSTICK_millis() - start_time >= L3_ON_DELAY)
+                state = ST_LED_OFF;
+            break;
+
+        case ST_LED_OFF:
+            pinWrite(LED3, HIGH);
+            start_time = SYSTICK_millis();
+            state = ST_OFF_WAIT;
+            break;
+
+        case ST_OFF_WAIT:
+            if (SYSTICK_millis() - start_time >= L3_OFF_DELAY)
+                state = ST_LED_ON;
+            break;
+        }   // switch
+    } else {
+        /* turn the LED off and reset its state */
+        pinWrite(LED3, HIGH);
+        state = ST_LED_ON;
+    }
+}
+
 
 // Ukazka dalsiho tasku - blika pri stisknutem tlacitku RGB LED
 void TaskGreenLed() {