Building My First Robot “Small Brain” in Wokwi

At first, I thought this Wokwi robotics exercise would just be about remotely controlling a servo motor with an ESP32. But as I kept adding sensors, MQTT communication, and feedback logic, it slowly started feeling more like building a tiny robot nervous system.

Using MQTT, I was able to send commands from my computer to the ESP32 while also receiving live sensor data back in real time. I also experimented with the MPU6050 motion sensor so the servo could automatically react to tilt changes. Watching the system physically respond to sensor input made the project feel much more alive and interactive than I expected.

One thing that surprised me was how quickly a “simple servo project” turned into a small embedded systems exercise involving communication, sensing, and motion control all working together at the same time. Even though everything was done in simulation, it helped me better understand how real robots connect hardware, feedback, and decision-making together.

This project also made robotics feel much less abstract to me. Instead of just reading about embedded systems, I could actually see the behavior change in real time as I adjusted the code and sensor inputs 😊