Rosserial_xbee fails to connect xbees

asked 2016-03-11 00:36:24 -0600

RKV
26 ●2 ●3 ●3

updated 2016-03-11 01:15:32 -0600

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

My Xbee works fine with X-CTU in windows.

When I try to transfer data between XBee- end device with arduino to Xbee-coordinator connected to PC using

rosrun rosserial_xbee xbee_network.py /dev/ttyUSB0 1

I am getting following error :

Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino

I followed the http://wiki.ros.org/rosserial_xbee/Tu... tutorial which works fine for me the first time.

But now its not working.I didn't change any version after that.

I am using ROS Hydro on Ubuntu 12.0.4

Sparkfun Xbee Kit series 1.

Can anyone please help me to solve this problem.

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The device is actually connected to " /dev/ttyUSB0 ". Even I verified earlier.

I am tyring to narrow down the problem to know who is the root cause.

Problem is not with xbee:bcz xbee can communicate in X-CTU using windows.

Xbee configuration doesn't have any problem.

RKV ( 2016-03-13 22:58:08 -0600 )edit

Xbee end device RSSI is blinking means it can receive data from co-ordinator. But CO-orninator RSSI never turns up. Means its not receiving sync from end device.SO what might be the problem in end device

RKV ( 2016-03-13 23:00:11 -0600 )edit

Is it the problem in software serialnode.py or hardware? Hope there wont be problem in hardware connection bcz of same hardware tested in X-CTU.So what I can do in software

RKV ( 2016-03-13 23:01:33 -0600 )edit

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answered 2016-03-13 20:53:22 -0600

RKV
26 ●2 ●3 ●3

Hi,

I checked with the device connection before itself as well as now with your command.

Still same problem.

I am able to check the rostopic.Which is published by Xbee as /diagnostics

**header: seq: 14 stamp: secs: 1457920159 nsecs: 757045984 frame_id: '' status:

level: 2
name: rosserial_python
message: no sync with device
hardware_id: ''
values: 
  - 
    key: last sync
    value: Mon Mar 14 09:49:04 2016
  - 
    key: last sync lost
    value: Mon Mar 14 09:49:19 2016**

Any Idea now??.. But what i think is co-ordinator able to communicate with End device with board. The end device is not able to connect with master it seems. I dont know whats the problem.

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Problem got solved.. Try to re-configure Xbee and establish connection when its not working.

RKV ( 2016-03-18 02:47:20 -0600 )edit

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answered 2016-03-11 10:06:24 -0600

alee

194 ●3 ●7

The problem with rosserial is that it gives that generic error message for almost anything. First thing I would check is whether your device is actually connected to /dev/ttyUSB0. Run "ls /dev/ | grep tty" before and after you plug in your xbee to the computer then check what port it's connected to based on what appears afterwards.

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Rosserial_xbee fails to connect xbees

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