diff --git a/examples/Peripherals/Registers/Reset_reason/Reset_reason.ino b/examples/Peripherals/Registers/Reset_reason/Reset_reason.ino
index a268188..62352fa 100644
--- a/examples/Peripherals/Registers/Reset_reason/Reset_reason.ino
+++ b/examples/Peripherals/Registers/Reset_reason/Reset_reason.ino
@@ -1,7 +1,10 @@
+#include <STM32LowPower.h>
+#include <low_power.h>
+
 /* Last Reset Reason Sketch
 * This sketch will determine what caused the last reset on the STM32 MCU. Most microcontrollers
 * have a register dedicated to storing the last reason of the chip, weather being from a 
-* low power condition, software caused brown-out. Test it by resetting the MCU via the USER button
+* low power condition, software caused or brown-out. Test it by resetting the MCU via holding the USER button,
 * which triggers the Reset_my_MCU() function or unplug the USB cable and repluggit back. Adjust your 
 * UART, USER Button pin and registers accordingly. Use the MCU's datasheet and/or stm32yyyxxx.h for reference.
 * The code is provided "as is" with no liability.
@@ -22,22 +25,25 @@ enum reset_reason {
   WINDOW_WDG = 1 << 4,
   LOW_POWER = 1 << 5,
   OPTION_BYTE_LOADER = 1 << 6,
-  POWER_ON_DOWN = 1 << 7
+  POWER_ON_DOWN = 1 << 7,
+  STANDBY = 1 << 8,
+  WAKEUP = 1 << 9
 };
 
-reset_reason last_reset_reason = UNKNOWN_RESET;
+reset_reason last_reset_reason = UNKNOWN_RESET; //is initially 0 or unknown
 static int default_button_state = LOW;
 
 void Reset_My_MCU() {
-  // There are a few reset conditions.
-  // Keep the one you wish to use and comment out the others.
+  // There are a few reset conditions. Keep the one you wish to use and comment out the others.
+
   // Below is the Software reset condition
   // NVIC_SystemReset();
 
   // Below is the Watchdog Timer reset condition
   IWatchdog.begin(1000);  //1ms tick then reset
   while (1)
-    ;  // Wait for reset
+    ;  // Wait for reset 
+
 }
 
 void setup() {
@@ -69,9 +75,18 @@ void setup() {
 #ifdef RCC_CSR_PORRSTF
   if (LL_RCC_IsActiveFlag_PORRST()) last_reset_reason = (reset_reason)(last_reset_reason | POWER_ON_DOWN);
 #endif
+#ifdef RCC_CSR_SBF
+  if (LL_PWR_IsActiveFlag_SB()) last_reset_reason = (reset_reason)(last_reset_reason | STANDBY);
+#endif
+#ifdef RCC_CSR_WUF
+  if (LL_PWR_IsActiveFlag_WU()) last_reset_reason = (reset_reason)(last_reset_reason | WAKEUP);
+#endif
+
 
   // Clear reset flags
   LL_RCC_ClearResetFlags();
+  LL_PWR_ClearFlag_SB();
+  LL_PWR_ClearFlag_WU();
 }
 
 void loop() {
@@ -83,10 +98,11 @@ void loop() {
   if (last_reset_reason & WINDOW_WDG) Serial.println(" - Window Watchdog reset");
   if (last_reset_reason & LOW_POWER) Serial.println(" - Low-power reset");
   if (last_reset_reason & OPTION_BYTE_LOADER) Serial.println(" - Option byte loader reset");
-  if (last_reset_reason & NRST_PIN) Serial.println(" - Pin reset (NRST or software)");  //last case so the rest take precedence before issuing NRST
+  if (last_reset_reason & STANDBY) Serial.println(" - Standby mode reset");
+  if (last_reset_reason & WAKEUP) Serial.println(" - WakeUp flag reset (Pin or RTC)");
   if (last_reset_reason & POWER_ON_DOWN) Serial.println(" - Power on or power down reset");
+  if (last_reset_reason & NRST_PIN) Serial.println(" - Pin reset (NRST or software)");  //last case so the rest take precedence before issuing NRST
   if (last_reset_reason == UNKNOWN_RESET) Serial.println(" - Unknown or no flags set");
-  last_reset_reason = UNKNOWN_RESET;
 
   // Trigger software reset on button press
   if (digitalRead(USER_BTN_PIN) != default_button_state) {