diff --git a/src/main.cpp b/src/main.cpp
index fdf5c39..eeb7089 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -133,8 +133,6 @@ unsigned long rtcMillis() {
 void ICACHE_RAM_ATTR fpm_wakup_cb_func1(void) {
   //gpio_pin_wakeup_disable();
   //ESP.wdtFeed();
-  //wifi_fpm_do_wakeup();
-  wifi_fpm_close();
   geiger_counts++;
 }
 
@@ -148,8 +146,12 @@ void inline lightsleep() {
   PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U,FUNC_GPIO13); // PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U,FUNC_GPIO13);
   gpio_pin_wakeup_enable(GPIO_ID_PIN(GEIGER_PIN), GPIO_PIN_INTR_LOLEVEL);
   wifi_fpm_set_wakeup_cb(fpm_wakup_cb_func1);
+  Serial.flush();
   wifi_fpm_do_sleep(0xFFFFFFF); // Sleep for longest possible time // this does not work: (uint32_t)postingInterval*1000
-  //delay(500);
+  delay(1); // go to sleep now
+  DEBUG_MSG("woken\n");
+  //wifi_fpm_do_wakeup();
+  wifi_fpm_close();
 }
 
 void ICACHE_FLASH_ATTR getValuesJSON(char* buffer, const size_t buf_len, int format) {
@@ -462,8 +464,8 @@ void loop() {
     geiger_previousMillis = rtcMillis();
     geiger_counts = 0;
   }
-  DEBUG_MSG("sleeping now... (%u)\n", currentMillis);
   DEBUG_MSG("heap: %d\n", ESP.getFreeHeap());
+  DEBUG_MSG("sleeping now... (%u)\n", currentMillis);
 
   delay(10);
   detachInterrupt(digitalPinToInterrupt(GEIGER_PIN));