st7735: Add dump with unknown command

[ gsi: README markup nits, and shorter snippet for automated test ]

1 files changed, 25 insertions, 0 deletions

diff --git a/display/st7735/README b/display/st7735/README
index 0c76111..44755a2 100644
--- a/display/st7735/README
+++ b/display/st7735/README
@@ -37,3 +37,28 @@ Long pauses are caused be sleeps for a few hundreds of milliseconds, which are
 required by the spec. Other oddities like frequent changes of CS are caused by
 specific library implementation.
 
+
+Dump with unknown command
+-------------------------
+
+Taken with the same setup as above on a 128x160 display with Arduino TFT library
+and the following code:
+
+  #include <TFT.h>
+  #include <SPI.h>
+
+  #define cs   10
+  #define dc   9   // A0
+  #define rst  8
+
+  TFT TFTscreen = TFT(cs, dc, rst);
+
+  void setup()
+  {
+    TFTscreen.begin();
+    TFTscreen.background(0, 255, 0);
+  }
+
+  void loop()
+  {
+  }