FluxFace project outer rim for IKEA Tromma
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FluxFace is an ESP32-based display that visualizes electricity prices on an RGBW LED strip. This is the outer rim models
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- GNU General Public License v3.0
Project
https://github.com/mjarvisal/FluxFace/tree/main
FluxFace is an ESP32-based smart LED display that visualizes electricity price levels on an RGBW LED strip. It connects to Wi‑Fi, fetches pricing data, keeps time in sync, and lights the strip according to configured thresholds so you can quickly see when electricity is cheap or expensive at a glance.
This project is designed for a GitHub audience: it is small, self-contained, and aimed at makers who want a practical embedded project built on ESP-IDF and a browser-based configuration interface.
Hardware
The firmware is built around an ESP32/ESP32-S3 class device and a 5V-powered SK6812-compatible LED strip.
Typical setup:
ESP32 or ESP32-S3 development board (the Olimex ESP32-S3-WROOM-1-N8R8 has 8 MB flash)
60 led/m LED RGBW LED strip (for example SK6812)
5V power supply sized for the strip
Data wire connected to GPIO 16
Common ground between the controller and the LED strip
Ikea Tromma clock
Printing
No supports needed
Print 3 pcs of Arc model for one clock
ESP32 Cover is for the Olimex ESP32-S3-WROOM-1-N8R8
3D model step files included
Printed with normal white PLA+PETG, can use special translucent plastics
Postprocessing
Arc ends are solid and need to be cut open.
Used hot glue for assembly on the back of the clock