Engineer's profile - activity

Hello

I am using an arduino UNO to communicate with ROS and I am trying to write a program to create a publisher and a subscriber node. I am not that familiar with ROS but I was wondering if there is a way to tell ROS exactly what to do. I mean that ok I publish a message to ROS but how can ROS know what to do? Lets say for example that I have an input to my arduino coming from a PIC microcontroller and what ROS needs to do is to tell the robot to go to a specific location. Can anyone give me a hint on how to do that?

Thanks in advance

I haven't checked if his suggestion works. I decided that I will use an arduino chip to connect it with ROS and also connect it with the PIC. Seems to be easier

Thanks, I will try the first method. But can you tell me if there is any chance that I would mess up the microcontroller if I implement the protocol in the wrong way, or by writting any other code wrong?

Hello, I am using a PIC18F4550 microcontroller for controlling a stepper motor and a regular dc motor through their drivers (H-bridges). I was wondering if anyone knows a simple way to make ROS communicate with the microcontroller. I know that one way to do this is to buy an arduino chip and follow the tutorials on this website. Then write a simple code to make the arduino chip communicate with the PIC microcontroller. Unfortunately, due to budget limit and lack of time this is not possible. I would be really greatfull if anyone could help me soon.

Thanks in advance.