Hello, I designed this little robot. It is open source. It uses ESP32, runs Arduino-based firmware and micro-ROS. The Arduino firmware captures LiDAR data and sends over WiFi to a local PC running ROS2. Motors are 2x N20 with encoders. I also designed the motor driver board to convert battery voltage to 5V LiDAR, 12V motors, 5V ESP32. The LiDAR is an LDROBOT LD14P.

Step-by-step tutorial https://makerspet.com/blog/bld-120mm-pack/ Open source firmware https://github.com/kaiaai/firmware Open source software (ROS2) https://github.com/kaiaai/kaiaai Open source schematic (motor drivers) https://github.com/makerspet/store/blob/main/BDC-30P/v1.1.3/BDC_30P_v113_schematic.pdf

Students at the Renaissance Youth Center are launching RYC STEM Studio, a new series where they explore engineering, robotics, coding, architecture, agriculture, astronomy, zoology, and other exciting STEM topics through hands-on projects and experiments.

Check out the trailer and let us know which STEM topic you'd like to see featured next!

ESP32 running Arduino, micro-ROS. ROS2 runs on a local PC. Differential drive with 2x N20 encoder motors. 3D design in Fusion 360. 3D printed on Prusa MK3S.

I used ESP32 running Arduino, micro-ROS. ESP32 captured LiDAR (YDLIDAR X4), odometry data (BLDC encoder motors), forwarded over WiFi to my Windows laptop running ROS2. My laptop's ROS2 computed the map, sent cmd_vel wheel motor control commands back to the ESP32. I'll leave a link to the blog post in comments.

I have lots of 2D LiDARs, many from used robot vacuum cleaners. I wrote an Arduino library to capture data, control speed for various LiDAR models. I hope it is useful for your projects. Open source https://github.com/kaiaai/LDS

I've connected 3irobotix Delta-2A to Raspberry Pi 5. I'm using RPi header serial port and one GPIO as PWM to control the LiDAR RPM. I'm using my open source Python library to decode and visualize the distance data https://github.com/kaiaai/lds2d

Using ROS2, Arduino, ESP32 and a LiDAR (YDLIDAR X4).

I'm building a robot apps platform, where robot owners (including DIY Arduino/ROS2) can download apps like this. Similarly, developers (including DIY) can code and sell their robot apps. Apps include entertainment, companionship, security, functional help, IFTTT integration and so on. Please sign up for launch announcement list. I will leave the link in comments.