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diff --git a/README.md b/README.md
index 8a626fe..4c0be7a 100644
--- a/README.md
+++ b/README.md
@@ -20,3 +20,14 @@ Then use nRFConnect (for Android) to program micropython.zip.
 At the end of this process your watch may *look* dead but, if it works, 
 you will be able to use the Nordic UART Service to access the 
 MicroPython REPL.
+
+Drivers are, for the most part, an exercise for the reader but
+there is a proof-of-concept display driver. To experiment try:
+
+~~~
+import pinetime, time
+tft = pinetime.st7789()
+tft.white()
+time.sleep(2)
+tft.black()
+~~~