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increasing rosserial's publishing rate for Arduino

asked 2016-01-03 20:56:43 -0600

soheilred gravatar image

updated 2016-01-03 21:45:28 -0600

Hello everyone,

I'm using ROS to control my cable-robot. I use Arduinos to create communication between ROS and sensors and actuators. But, frequency of rosserial_python node is low (120 hz) and because of that the system is not controlled well. Is there any other nodes or boards that I can use for my project?

Thank you in advance,

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You've edited this question twice in the last hour, without actually adding new data. Updating your question this frequently pushes down questions from other users, and isn't likely to actually get an answer more quickly.

ahendrix gravatar imageahendrix ( 2016-01-03 21:56:37 -0600 )edit

I edited the title, which seems is not shown in the changes.

soheilred gravatar imagesoheilred ( 2016-01-04 00:44:52 -0600 )edit

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answered 2016-01-04 05:50:23 -0600

http://www.shadowrobot.com/products/r... for example will give you much more regular updates

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Thank you for your answer. It is written in the website that "RoNeX sends and receives data packets 1,000 times a second, consistently, all the time." Does it mean that no matter how many sensor we connect, it will publish the data in rate of 1 Khz?

soheilred gravatar imagesoheilred ( 2016-01-04 07:14:02 -0600 )edit

my understanding is that the module will be able to read all its gpios and send values in that time. As you add more modules you might saturate the bandwidth of the bus, but as it is ethernet you would need to add a lot of modules before that happened, but you could get clarification from them

nickw gravatar imagenickw ( 2016-01-06 05:01:57 -0600 )edit

Thank you for your answer.

soheilred gravatar imagesoheilred ( 2016-01-07 09:04:06 -0600 )edit

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Asked: 2016-01-03 20:56:43 -0600

Seen: 637 times

Last updated: Jan 04 '16