Late nights, excitement and learning are how I would describe the GSoC period in a few words. These past two months have been a lot of fun, from starting off...
Getting Code Running on Drones
After I got the drones running now it was time to actually write the code to solve some exercises. The goal for this week of the GSoC period was to get 1-2 applications of the drones solved using Visual Circuit.
But before I could do that, I had to get my code to run on the drones.
Running the Scripts
The way JDE Drones works is that we have a widget that allows us to control most aspects of the drone.
What we have to do is write our code in the
and click on the
Play Code button after takeoff of the drone to run our code.
This worked well enough for the exercises,
drone_hangar when I tested them. However a problem arose in the exercise
drone_cat_mouse. The problem was that the widget itself did not appear when the exercise was launched.
Problem and Solution
When this happened I was quite confused. Since all of my other exercises were working properly I had come to the conclusion that all of my installs were done correctly. In this case I had no idea what exactly was going wrong, I got a hint by using
rostopic echo. The output consisted of topics that were pre-fixed by
mouse/, for each drone respectively.
The difference here was that each drone had the namespace prefixed to its topic. The namespace was
mouse/. When initializing the
DroneWrapper() class in
my_solution.py we had to pass the namespace to the class as a parameter.
# DroneWrapper(node_name, namespace) HAL = DroneWrapper('drone','cat/')
The above code was what I needed to get the
my_solution.py file to execute.
I’m still thinking of a solution to get the widget working. One way is to go into the
drone_vel_teleop class manually and set the default namespace as
cat/. However this isn’t really a long term solution to the problem.
This blog will be updated if I find a way to get the widget working well. For the time being however my current method is enough to solve the exercise.
Example of Follow Road Working:
Going by the suggestions of my mentors, I spent this week working on the documentation of the blocks and some updates to my blog.
This week I looked into MultiProcessing Conditions and finished the video of the FSM.
This week saw the completion of the FSM video and the solution to the block size bug.
I made more progress with the documentation and some other auxillary bug fixes this week.
Another pretty busy week for me personally. This led to a bit of slowdown in the work done. However I started with the documentation editing through Jinja an...
This week was quite hectic for me. My college started offline after a while, due to travelling and a few other events the time I could spend on Visual Circui...
This was a week where I started to work on the Finite State Machine that I had mentioned in my proposal.
This week marked a focus on completing the remaining PRs from last week. I also finished adding a new IMU block and worked on general share() and read() func...
This week I finally finished the remaining templates from last week. I also managed to upload my created videos to the JdeRobot YouTube Channel.
This week was about identifying and solving some bugs I had noticed during usage of the tool. I also started with the work template updation.
This week marked the official beginning of the coding period. Going by last week’s set goals I started on the video creation part first and foremost.
This was the last week of community bonding, however due to other commitments in college I had a hard time working on Visual Circuit.
In my previous posts I had highlighted the challenges I faced while installing Jde Drones and getting code running on it. Next after these steps was to solve...
After I got the drones running now it was time to actually write the code to solve some exercises. The goal for this week of the GSoC period was to get 1-2 a...
Getting started with my GSoC period, one of my goals during the project was to make drone applications using Visual Circuit. JdeRobot’s Academy already has s...