diff --git a/micropython/examples/inky_frame/carbon_intensity.py b/micropython/examples/inky_frame/carbon_intensity.py
index 208309ee..20c41421 100644
--- a/micropython/examples/inky_frame/carbon_intensity.py
+++ b/micropython/examples/inky_frame/carbon_intensity.py
@@ -139,6 +139,9 @@ draw()
 # Go to sleep if on battery power
 inky_frame.turn_off()
 
+# Or comment out the line above and uncomment this one to wake up and update every half hour
+# inky_frame.sleep_for(30)
+
 """
 Pico W RAM seems insufficient to decode a https request whilst having a PicoGraphics instance active.
 If you are running off USB and want this to update periodically, you could incorporate a machine.reset()