diff --git a/upload.sh b/upload.sh
index 51b70e8..cce9387 100755
--- a/upload.sh
+++ b/upload.sh
@@ -21,3 +21,10 @@
     arduino-cli upload --fqbn esp32:esp32:m5stick-c -p ${ser} "."
 done
 
+echo "======================================================"
+echo "【ヒント】講義資料内のサンプルコードを書き込むときは、"
+echo "  $ cd SampleSrc"
+echo "  $ ./Upload.sh [ソースコード.ino] "
+echo "とします。" 
+echo "======================================================"
+