From: Erik Andresen <erik@vontaene.de>
Date: Fri, 14 Aug 2015 01:03:43 +0000 (+0000)
Subject: added diagnostic msg
X-Git-Url: https://defiant.homedns.org/gitweb/?p=ros_wild_thumper.git;a=commitdiff_plain;h=6a8af73159db6b0af7382a22dae0b3b18295120f

added diagnostic msg
---

diff --git a/cfg/analyzers.yaml b/cfg/analyzers.yaml
new file mode 100644
index 0000000..24193de
--- /dev/null
+++ b/cfg/analyzers.yaml
@@ -0,0 +1,6 @@
+analyzers:
+        motors:
+                type: GenericAnalyzer
+                path: Motors
+                startswith: 'Motor'
+                find_and_remove_prefix: motor
diff --git a/package.xml b/package.xml
index 395909f..6911afe 100644
--- a/package.xml
+++ b/package.xml
@@ -45,6 +45,7 @@
   <build_depend>roscpp</build_depend>
   <build_depend>std_msgs</build_depend>
   <build_depend>image_transport</build_depend>
+  <run_depend>hector_sensors_description</run_depend>
 
   <!-- The export tag contains other, unspecified, tags -->
   <export>
diff --git a/scripts/move_base.py b/scripts/move_base.py
index ae15b38..0f0bc19 100755
--- a/scripts/move_base.py
+++ b/scripts/move_base.py
@@ -8,6 +8,7 @@ from i2c import *
 from math import *
 from geometry_msgs.msg import Twist
 from nav_msgs.msg import Odometry
+from diagnostic_msgs.msg import DiagnosticArray, DiagnosticStatus, KeyValue
 
 WHEEL_DIST = 0.248
 
@@ -17,6 +18,7 @@ class MoveBase:
 		rospy.Subscriber("cmd_vel", Twist, self.cmdVelReceived)
 		self.tf_broadcaster = tf.broadcaster.TransformBroadcaster()
 		self.pub_odom = rospy.Publisher("odom", Odometry, queue_size=16)
+		self.pub_diag = rospy.Publisher("diagnostics", DiagnosticArray, queue_size=16)
 		self.set_speed(0, 0)
 		rospy.loginfo("Init done")
 		i2c_write_reg(0x50, 0x90, struct.pack("BB", 1, 1)) # switch direction
@@ -25,6 +27,7 @@ class MoveBase:
 	def run(self):
 		rate = rospy.Rate(20.0)
 		while not rospy.is_shutdown():
+			self.get_tle_err()
 			#self.get_odom()
 			#self.get_dist_forward()
 			#self.get_dist_backward()
@@ -32,6 +35,25 @@ class MoveBase:
 			#self.get_dist_right()
 			rate.sleep()
 
+	def get_tle_err(self):
+		err = struct.unpack(">B", i2c_read_reg(0x50, 0x94, 1))[0]
+		
+		msg = DiagnosticArray()
+		msg.header.stamp = rospy.Time.now()
+		stat = DiagnosticStatus()
+		stat.name = "Motor: Error Status"
+		stat.level = DiagnosticStatus.OK if not err else DiagnosticStatus.ERROR
+		stat.message = "OK" if not err else "Error"
+
+		stat.values.append(KeyValue("Motor 1", str(bool(err & (1 << 0)))))
+		stat.values.append(KeyValue("Motor 2", str(bool(err & (1 << 1)))))
+		stat.values.append(KeyValue("Motor 3", str(bool(err & (1 << 2)))))
+		stat.values.append(KeyValue("Motor 4", str(bool(err & (1 << 3)))))
+
+		msg.status.append(stat)
+		self.pub_diag.publish(msg)
+
+
 	def get_odom(self):
 		posx, posy, angle = struct.unpack(">fff", i2c_read_reg(0x50, 0x40, 12))
 		speed_trans, speed_rot = struct.unpack(">ff", i2c_read_reg(0x50, 0x38, 8))
diff --git a/wild_thumper.launch b/wild_thumper.launch
index 2a3bb4a..8d7c713 100644
--- a/wild_thumper.launch
+++ b/wild_thumper.launch
@@ -3,4 +3,8 @@
 	<param name="robot_description" command="$(find xacro)/xacro.py $(find wild_thumper)/urdf/wild_thumper.urdf.xacro" />
 
 	<node name="robot_state_publisher" pkg="robot_state_publisher" type="state_publisher" />
+
+	<node pkg="diagnostic_aggregator" type="aggregator_node" name="diagnostic_aggregator" >
+		<rosparam command="load" file="$(find wild_thumper)/cfg/analyzers.yaml" />
+	</node>
 </launch>