Updated readme for IMU support.

README.md

@@ -6,6 +6,7 @@ ROS driver for the e-consystems See3CAM_Stereo (Tara) camera based on the
 
 Creates a stereo image node pair (`left/image_raw` and `right/image_raw`) from any connected Tara devices. This is for compatibility with any other ROS modules which support stereo cameras.
 Added support for setting and getting exposure and brightness.
+Added support for getting IMU data.
 
 The following nodes will be created upon launching this driver.
 ```
@@ -15,6 +16,11 @@ The following nodes will be created upon launching this driver.
     /stereo/left/camera_info
     /stereo/right/image_raw
     /stereo/right/camera_info
+    /stereo/get_brightness
+    /stereo/set_brightness
+    /stereo/get_exposure
+    /stereo/set_exposure
+    /stereo/get_IMU
 ```
 
 The Camera preview can be seen using any basic ROS camera application. `rqt_image_view` can be used for simplicity.
@@ -30,13 +36,13 @@ Some Tested Examples
 * To check the exposure of the camera at run time:
 
 ```bash
-rostopic echo /stereo/exposure
+rostopic echo /stereo/get_exposure
 ```
 
 * To check the brightness of the camera at run time:
 
 ```bash
-rostopic echo /stereo/brightness
+rostopic echo /stereo/get_brightness
 ```
 
 * To change the exposure of the camera at run time:
@@ -62,3 +68,18 @@ e.g. :
 ```bash
 rostopic pub -1 /stereo/set_brightness std_msgs/Float64 "data: 6"
 ```
+
+* To read the X,Y,Z co-ordinates of the camera using the built-in IMU:
+
+```bash
+rostopic echo /stereo/get_IMU 
+```
+
+Known Issues
+============
+
+* The directory which stores the camera config files (yaml) has to be created manually for the first time after driver installation (catkin_make).
+
+```bash
+mkdir ~/.ros/camera_info -p 
+```