ROS C++ Tutorial: My First Ultrasonic Distance Sensor on Raspberry Pi
In this video, I build my first ROS C++ node using an ultrasonic distance sensor on a Raspberry Pi.
If you're learning robotics, ROS (Robot Operating System), or working with Raspberry Pi hardware, this beginner-friendly tutorial walks through:
• Wiring the ultrasonic sensor
• Reading GPIO pins in C++
• Creating a ROS publisher node
• Publishing & Subscribing to real distance data from a ROS topic
• Debugging common issues
This is part of my robotics learning journey, and I’ll be building more hardware + ROS projects soon.
🔧 Tech Used:
Raspberry Pi
ROS2 Jazzy (middleware)
C++
Ultrasonic distance sensor (HC-SR04)
RED LED
Resistors: 3-1k & 1-470Ohm
Wires (male-female & female-female)
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📂 Full code: https://github.com/ShadDigital/Ultras...
(GitHub Repo)
If you're starting robotics or working toward autonomous robots, this is a foundational project you should understand.
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#ROS #RaspberryPi #Robotics #CPP #UltrasonicSensor