diff --git a/examples/dotstar_image_paint.py b/examples/dotstar_image_paint.py
index 43c01b6..88901da 100644
--- a/examples/dotstar_image_paint.py
+++ b/examples/dotstar_image_paint.py
@@ -3,6 +3,9 @@
 
 #!/usr/bin/python3
 
+# This example runs on SBC devices like Raspberry Pi.
+# It cannot run on  microcontrollers.
+
 # Light-painting example for Adafruit DotStar RGB LED strip.
 # Loads image, displays column-at-a-time on LEDs at a reasonable
 # speed for long exposure photography.
diff --git a/examples/dotstar_image_pov.py b/examples/dotstar_image_pov.py
index cb638da..ad26346 100644
--- a/examples/dotstar_image_pov.py
+++ b/examples/dotstar_image_pov.py
@@ -3,6 +3,9 @@
 
 #!/usr/bin/python3
 
+# This example runs on SBC devices like Raspberry Pi.
+# It cannot run on  microcontrollers.
+
 # Persistence-of-vision (POV) example for Adafruit DotStar RGB LED strip.
 # Loads image, displays column-at-a-time on LEDs at very high speed,
 # suitable for naked-eye illusions.