diff --git a/ci/build-arduino.sh b/ci/build-arduino.sh
index b4ee387..b967259 100644
--- a/ci/build-arduino.sh
+++ b/ci/build-arduino.sh
@@ -22,6 +22,9 @@ arduino-cli core update-index
 # arduino-cli core install arduino:esp8266
 arduino-cli core install esp32:esp32
 
+# List the boards
+arduino-cli board list
+
 # Link Arduino library
 ln -s $GITHUB_WORKSPACE $HOME/Arduino/libraries/CI_Test_Library