add start script

Author: noonv

pet/start.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+echo "Change dir..."
+cd /usr/src/robot_2wd/pet
+
+screen -dmS speecher sh -c './speecher ; exec bash'
+screen -dmS elwin sh -c './face_detect_woof ; exec bash'
+