diff --git a/src/main.c b/src/main.c
index 69f8786..e777d50 100644
--- a/src/main.c
+++ b/src/main.c
@@ -35,7 +35,7 @@ void reset_mcu(void) {
     FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
 
     /* Configure FWDGT to trigger a system reset */
-    fwdgt_config(5, FWDGT_PSC_DIV4);
+    fwdgt_config(50, FWDGT_PSC_DIV4);
 
     /* Reload the counter to trigger the reset */
     fwdgt_counter_reload();
@@ -65,7 +65,6 @@ int main(void) {
 
     /* Initialize watchdog */
     watchdog_init();
-    printf("Hello, world!\n");
 
     while (1) {
         delay_ms(99);
diff --git a/src/rs485.c b/src/rs485.c
index a1dbbe7..dbce5c4 100644
--- a/src/rs485.c
+++ b/src/rs485.c
@@ -58,6 +58,7 @@ void process_command(uint8_t *cmd, size_t length) {
                 tempture_value_report();
             } else if (strcmp(combined_str, "M3") == 0)
             {
+                printf("%c%c%c%c%c%c", 0xB5, 0xF1, 0x02, 0x6F, 0x6B, 0xCC);
                 reset_mcu();
             } else {
                 printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3C);