trouble subscribing to custom messages

edit

http://www.ros.org/wiki/rosserial_arduino/Tutorials/Arduino%20Oscilloscope

It is a custom message. I've tried to import into my script every combination of

from rosserial_arduino import Adc from rosserial_arduino.msg import Adc from Adc.msg import adc

etc. Everytime it says the module isn't found.

I'm getting closer.

Now when I try to connect the publisher script shows this. The publisher is publishing 6 UInt16 variables, is the problem that I'm only subscribing to one of them? Or is the topic type not really UInt16 but a new type made up of 6 UInt16s?

[WARN] [WallTime: 1339714526.664093] Could not process inbound connection: topic types do not match: [std_msgs/UInt16] vs. [rosserial_arduino/Adc]{'message_definition': 'uint16 data\n\n', 'callerid': '/listener', 'tcp_nodelay': '0', 'md5sum': '1df79edf208b629fe6b81923a544552d', 'topic': '/adc', 'type': 'std_msgs/UInt16'}

I think I put in Uint16 not UInt16 yesterday when I tried this. I fixed it and it compiled but same result.

I put some print commands in so I can see what commands are being executed.

The results of running this is

Main
listener
rospy.subscriber()
when I Ctrl-C it shows
rospy.spin()

Looks like the callback function isn't being called.

#!/usr/bin/env python
import roslib; roslib.load_manifest('sensorcsv')
import rospy

from std_msgs.msg import UInt16
def callback(data):
    print "Callback"
    rospy.loginfo(rospy.get_name()+"I heard %s",data.data)
    print rospy.get_name()+"I heard %s"+data.data

def listener():
    print "listener"
    rospy.init_node('listener', anonymous=True)
    rospy.Subscriber("Adc", UInt16, callback)
    rospy.spin()
    print "rospy.spin()"

if __name__ == '__main__':
    print "Main"
    listener()