diff --git a/micropython b/micropython
index e668ed3..b2273b5 160000
--- a/micropython
+++ b/micropython
@@ -1 +1 @@
-Subproject commit e668ed3ed3778bf5aea08e766cc8d82eb0a4c247
+Subproject commit b2273b5d22bc4d948b5333b2b82a7be66f62cefd
diff --git a/wasp/boards/pinetime/watch.py b/wasp/boards/pinetime/watch.py
index 0d0fa4b..d6a8210 100644
--- a/wasp/boards/pinetime/watch.py
+++ b/wasp/boards/pinetime/watch.py
@@ -1,4 +1,5 @@
 from machine import Pin
+from machine import RTCounter as RTC
 #from machine import Signal
 from machine import SPI
 
@@ -12,7 +13,7 @@ class Display(ST7789_SPI):
         spi = SPI(0)
         # Mode 3, maximum clock speed!
         spi.init(polarity=1, phase=1, baudrate=8000000)
-    
+
         # Configure the display
         cs = Pin("DISP_CS", Pin.OUT)
         dc = Pin("DISP_DC", Pin.OUT)
@@ -48,6 +49,10 @@ backlight = Backlight(0)
 display = Display()
 backlight.set(1)
 
+# Start measuring time (and feeding the watchdog)
+rtc = RTC(1, mode=RTC.PERIODIC)
+rtc.start()
+
 battery = Battery(
         Pin('BATTERY', Pin.IN),
         Signal(Pin('CHARGING', Pin.IN), invert=True),