diff --git a/monitor.sh b/monitor.sh
new file mode 100755
index 0000000..b4e05f0
--- /dev/null
+++ b/monitor.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# get serial port via board list, choose lines including "USB", and pick up 1st word
+serial=`arduino-cli board list | grep USB | awk '{print $1}'`
+
+echo ${serial}
+if [ -z "${serial}" ]; then
+  echo "No device connected."
+  exit  
+fi
+
+# open serial monitor (CTRL+C to quit)
+arduino-cli monitor -p ${serial} --config baudrate=115200