diff --git a/etc/init.d/t3hs_sim800.sh b/etc/init.d/t3hs_sim800.sh
new file mode 100755
index 0000000..2ca482c
--- /dev/null
+++ b/etc/init.d/t3hs_sim800.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+SCRIPT_PATH=/usr/bin/t3hs/t3hs_sim800
+
+case "$1,$2" in
+start,gpio)
+	"$SCRIPT_PATH" gpio on
+	;;
+
+start,mqtt)
+	"$SCRIPT_PATH" mqtt on
+	;;
+
+stop,gpio)
+	"$SCRIPT_PATH" gpio off
+	;;
+
+stop,mqtt)
+	"$SCRIPT_PATH" mqtt off
+	;;
+
+restart,gpio)
+	$0 stop gpio
+	sleep 10
+	$0 start gpio
+	;;
+
+restart,mqtt)
+	$0 stop mqtt
+	sleep 10
+	$0 start mqtt
+	;;
+
+*)
+	echo "Usage: $0 {start|stop|restart} {gpio|mqtt}"
+	exit 1
+esac
+
+exit 0