PowerDonut Circular ESP32 Energy Display Enclosure

The PowerDonut is a donut-shaped 3D printed enclosure designed for a circular ESP32-based energy display using a 1.28” GC9A01 round TFT.

It turns your ESP32 + round display into a clean, minimal desk energy monitor.

This enclosure is designed for:
    •    ESP32 Dev Module
    •    1.28” GC9A01 circular display (240x240)
    •    Custom LVGL UI built with ESPHome

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🧵 Surface Finish Tip

For a unique matte texture, I wrapped the printed donut with a thin women’s nylon stocking before final assembly.
This gives the enclosure a subtle fabric-like surface finish.

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🔧 Build Instructions & Firmware

This model is part of the Circle Power Display project.

Full firmware, wiring instructions and configuration files are available here:

👉 https://github.com/akuehlewind/circle-power-display

The GitHub repository contains:
    •    ESPHome configuration
    •    Wiring documentation
    •    Display configuration
    •    Project explanation