Unable to sync with device; possible link problem or link software version...
ROS-KINETIC Hi, I'm trying make a code to a little robot with Arduino using ROSSERIAL, but sometimes when I change my code, this error happen, and i don't know why. Let me explain. On this code....
View ArticlePublishing on a topic using rosserial windows?
Hi, So I have a ROS running on my Linux machine and I am following the tutorial given here: http://wiki.ros.org/rosserial_windows/Tutorials/Hello%20World The code given in the tutorial looks like this:...
View ArticleConnecting to ROS using rosserial on Windows?
I have ROS running on my Linux machine and I wanna connect to ROS using rosserial on Windows. So I have been following the tutorial on rosserial given here:...
View ArticleROS Node for computation
I'm trying to understand the ROS Computation graph. I understand that we can have nodes such as a camera, a servo motor, an ultrasonic sensor, or an esc. These nodes publish their messages to topics...
View ArticlePublishing String from Terminal?
Is there any problem in my code? i just want, if i publish *"q"* Blue LED glow. Red for *"a"* and blink for *"z"* . i use > rostopic pub /servo std_msgs/String > "data: 'z'" command to publish...
View ArticleIs there a way to publish keyboard events (using key_teleop for example) to a...
Hi, I've been looking at ways to publish keyboard commands to a UART serial port and the top result keeps pointing me to rosserial, but I'm not entirely sure this exactly fits my needs. Ideally, I want...
View ArticleRosserial: Topic id 125 & creation of publisher failed
Hi, I created a custom message: SonarDistances.msg uint8 front_middle uint8 right_front uint8 right_middle uint8 right_rear uint8 left_front uint8 left_middle uint8 left_rear uint8 rear_middle...
View ArticleHow to use rospublisher to publish a byte value
I did a s.bus reading on ardiuno, it can work perfectly when i link to ROS, but there is problem with my code: #include #include #include #include #include int maximumRange = 400; // Maximum range...
View Articlerosserial Raspberry Pi AMA0
Dear all, i would like to use a raspberry pi 3 and a arduino compatible expansion shield which can be pluged on the GPIO header, so i would like to use the serial interface. If i do so and starting...
View Articletwo ACM devices does not function together
I use hokuyo lidar and arduino for my application. Hokuyo is connected to laptop directly and it is connected as ACM port. Arduino board connected to the laptop is ACM1. Now, whenever I upload a new...
View ArticleHow to use Frontier_exploration or RRT_exploration on actual Robot?
I am working on an autonomous mapping robot. I am confused about how to use the frontier_exploration package or the rrt_exploration package with my robot. I am using ROS indigo on my laptop using...
View ArticleBluetooth communication in ROS. Unable to setup dev/rfcomm
Hi, I am have [Bluno nano](https://www.dfrobot.com/product-1122.html) and would like to connect it my pc and receive information via blue tooth. Unfortunately i am very new to blue tooth and sure about...
View ArticleArduino code facing problems with rosserial
Hello, I am a beginner. I will try to be as specific as possible, So I am trying to run a single servo with arduino using rosserial lib. I am using the example code for servo control : ---------- #if...
View ArticleBidirectional rosserial communication
Hello everyone, I am having some trouble regarding a program that connects a RPi3 with ROS and a UNO board. The idea is that the node in RPi advertises on a certain topic that UNO's node is suscribed...
View ArticleHow to install rosserial for Arduino on ROS-Kinetic?
There official website states that no information is contained regarding rosserial for Arduino on the latest verion of ROS i.e, Kinetic. Can I install manually? If so, please help me.
View ArticleAdding class callback function on Arduino
I'm having an issue with using a class function as my subscriber callback function on Arduino. First, I'm wondering why there are differences between ROS classes and functions on Arduino and "normal"...
View ArticleCustom ros.h when using rosserial_arduino can not include node_handle.h
I tried to configure the number of publishers and subscribers according to this tutorial: http://wiki.ros.org/rosserial_arduino/Tutorials/NodeHandle%20and%20ArduinoHardware To set it up only for one...
View ArticleHow to create a custom msg for arduino ?
I am trying to create the custom msg for Arduino. I refer the [rosserial_client](http://wiki.ros.org/rosserial_client/Tutorials/Generating%20Message%20Header%20Files) package to generate the custom...
View ArticleRosserial nodes not starting after last update
I just ran a ROS package update on my Ubuntu 16.04 system, and now none of my rosserial serial_node.py instances are starting. My launch file is like: but running this now results in:...
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