iRoboCity2030 Summer School 2026 — ROS 2 Summer School

Teaching demos for the University of Gothenburg summer school on ROS 2, AI, and Field Robotics.

Prerequisites: Python 3 (DEMO0), Docker & Docker Compose (DEMO2).

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DEMO0 — Custom HTTP Server

A barebones HTTP/1.1 server built from scratch in Python using only the standard library. Serves static files from public/ and echoes POST data at /echo.

cd DEMO0
python3 server.py
# Open http://localhost:8080

# filter traffic with:
http 
http || tcp

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DEMO1 — MATLAB ROS 1 Talker & Listener

ROS 1 publisher and subscriber written in MATLAB, each bound to a fixed port for easy Wireshark filtering.

Prerequisites: MATLAB with ROS Toolbox, a running ROS 1 master on http://localhost:11311.

% Terminal 1: start talker (port 9090)
>> run DEMO1/talker.m

% Terminal 2: start listener (port 9091)
>> run DEMO1/listener.m

% Filter in Wireshark:
tcp.port == 9090 || tcp.port == 9091

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DEMO2 — ROS 2 Talker / Listener with Docker Compose

A containerized ROS 2 (Jazzy) pub/sub pair with /toggle_talker and /toggle_listener services, orchestrated via Docker Compose.

cd DEMO2
docker compose up -d
docker attach node1

source ../ros_entrypoint.sh
read -p "Press enter to continue"
ros2 node list
ros2 topic list
read -p "Press enter to continue"
ros2 service call /toggle_talker std_srvs/srv/Trigger
read -p "Press enter to continue"
ros2 service call /toggle_listener std_srvs/srv/Trigger
read -p "Press enter to continue"
ros2 service call /toggle_talker std_srvs/srv/Trigger
read -p "Press enter to continue"
ros2 service call /toggle_listener std_srvs/srv/Trigger
read -p "Press enter to continue"

cd DEMO2
docker compose down