2 layers111.5 × 102 mm

Wall e
c-lydia/ESP-ROS2
A tiny robot with IMU (MPU5060) and an ultrasonic sensor (HC-SR04), running on micro-ROS, communicating over UDP.
12 parts2Apache-2.0
KiCad boards from 2 GitHub repositories tagged “wokwi-simulation”, the most starred first; open any of them in PCBKit.

c-lydia/ESP-ROS2
A tiny robot with IMU (MPU5060) and an ultrasonic sensor (HC-SR04), running on micro-ROS, communicating over UDP.

Srushti-D-Hebbar/arduino-water-level-monitor
Arduino Uno water-level monitoring and pump controller with HC-SR04, 16×2 LCD, and relay-based pump control. Wokwi-validated and designed as a 2-layer PCB in KiCad 10.