rcommand.cpp: delay before restart

src/rcommand.cpp

@@ -8,7 +8,10 @@ static const char TAG[] = "main";
 // helper function
 void do_reset() {
   ESP_LOGI(TAG, "Remote command: restart device");
+  if (irqHandlerTask != NULL)
+    vTaskDelete(irqHandlerTask);
   LMIC_shutdown();
+  vTaskDelay(3000 / portTICK_PERIOD_MS);
   esp_restart();
 }