diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -168,4 +168,6 @@ PC program source files are located under `./software/pc/`. The compiled program
 
 ### Android
 
-Working in progress ...
+<img src="./imgs/screenshot_connect.png" alt="screenshot_connect" width="500"/>
+
+<img src="./imgs/screenshot_control.png" alt="screenshot_control" width="500"/>
diff --git a/imgs/screenshot_connect.png b/imgs/screenshot_connect.png
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diff --git a/imgs/screenshot_control.png b/imgs/screenshot_control.png
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