ESP32-C3 Mini Robot (with OLED Display)

1. Structural Design The entire enclosure adopts a modular 3D-printed design, featuring a rounded square head paired with a hemispherical base and pre‑drilled openings for the antenna. Internally, the housing is divided into separate compartments: the head houses the ESP32-C3 mini motherboard and the OLED display, while the base accommodates the battery. This layout ensures easy assembly and disassembly, with neatly routed wiring.

   

    

2. Hardware Configuration Compatible with the ESP32-C3 mini (including an expansion board) and an OLED display, the robot features dedicated mounting points for the screen, button slots, and heat dissipation vents. The battery compartment in the base is fully isolated, allowing integration of a lithium‑ion battery to enable standalone operation without external power. The hardware layout has been optimized to ensure that components do not interfere during assembly.

   

    

3. Functions and Applications Leveraging the ESP32’s wireless communication capabilities and pairing it with the display, this device can present information and provide interactive feedback. It serves as an intelligent desktop ornament, an IoT learning prototype, or an embedded science‑and‑technology training model, making it ideal for hobbyists exploring Wi‑Fi and Bluetooth‑related projects.