Add an autoflash script

device-under-test/autoflash.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+shopt -s inherit_errexit
+
+SERIAL_DEV=/dev/tty.usbserial-310
+
+while true; do
+    echo "Insert device."
+    if [ -c $SERIAL_DEV ]; then
+        pio run -e esp32dev -t upload
+        echo "Done. Remove device."
+        while [ -c $SERIAL_DEV ] ; do
+            sleep 1
+        done
+    fi
+    sleep 1
+done