diff --git a/ros_arduino_msgs/srv/AnalogWrite.srv b/ros_arduino_msgs/srv/AnalogWrite.srv
new file mode 100644
index 0000000..5973435
--- /dev/null
+++ b/ros_arduino_msgs/srv/AnalogWrite.srv
@@ -0,0 +1,3 @@
+uint8 pin
+float32 value
+---