diff --git a/docs.txt b/docs.txt
index 1e6bd5c..0f77e05 100644
--- a/docs.txt
+++ b/docs.txt
@@ -1,4 +1,7 @@
+mbed-tools compile -m NUCLEO_U575ZI_Q -t GCC_ARM
+
 probe-rs:
+sudo probe-rs run --chip STM32U575ZI cmake_build/NUCLEO_U575ZI_Q/develop/GCC_ARM/mbed-os-example-blinky.elf
 sudo probe-rs gdb --chip STM32U575ZI --protocol swd
 
 arm-none-eabi-gdb cmake_build/NUCLEO_U575ZI_Q/develop/GCC_ARM/mbed-os-example-blinky.elf
diff --git a/mbed_ledky2/main.cpp b/mbed_ledky2/main.cpp
index 82f7233..c2b7b0a 100644
--- a/mbed_ledky2/main.cpp
+++ b/mbed_ledky2/main.cpp
@@ -1,7 +1,4 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2019 ARM Limited
- * SPDX-License-Identifier: Apache-2.0
- */
+// main.cpp
 
 #include "mbed.h"
 
@@ -12,20 +9,37 @@
 DigitalOut led1(LED1);
 DigitalOut led2(LED2);
 DigitalOut led3(LED3);
-DigitalIn  tlacitko(Button1);
+DigitalIn  button(PC_13);
+
+void set_led_pattern(int pattern) {
+    switch (pattern) {
+        case 0:
+            led1 = 1; led2 = 0; led3 = 0;
+            break;
+        case 1:
+            led1 = 0; led2 = 1; led3 = 0;
+            break;
+        case 2:
+            led1 = 0; led2 = 0; led3 = 1;
+            break;
+    }
+}
 
 int main()
 {
-    tlacitko.mode(PullNone);
+    int pattern = 0;
+    set_led_pattern(pattern);
 
     while (true) {
-        led1 = 1; led2 = 0; led3 = 0;
-        ThisThread::sleep_for(BLINKING_RATE);
+        if (button == 0){
+            pattern = (pattern + 1) % 3;
+            set_led_pattern(pattern);
 
-        led1 = 0; led2 = 1; led3 = 0;
-        ThisThread::sleep_for(BLINKING_RATE);
+            while (button == 0) {
+                ThisThread::sleep_for(10ms);
+            }
 
-        led1 = 0; led2 = 0; led3 = 1;
-        ThisThread::sleep_for(BLINKING_RATE);
+            ThisThread::sleep_for(150ms);
+        }
     }
 }