PROMETHEUS METRICS DASHBOARD / ESP32 APPLICATION
E-Paper Metrics Station
A Bluetooth-controlled multi-screen e-paper dashboard with prometheus support metrics, powered by ESP32-C6.
About this project
About this project
An information board for a desk or wall: an ESP32-C6 with a 4.2-inch e-paper panel that cycles between two kinds of screen. One lists upcoming calendar events; the other fills 16 configurable slots with numbers pulled from any JSON or Prometheus endpoint, each slot with its own JSON path, divisor, decimal count and unit. Setup happens entirely over Bluetooth Low Energy from a web app opened in a Chrome-based browser: connect to the device named ESP32_Config, enter Wi-Fi credentials, then map which API value lands in which slot. The firmware is a PlatformIO project, the web app is plain HTML and JavaScript, and STL files for an enclosure are included. The panel is a GoodDisplay GDEY042T81 or another screen GxEPD2 supports.
From the README
From the README
- Display
- GoodDisplay GDEY042T81 (4.2" E-Ink)
- Input
- Bluetooth LE (BLE): For easy configuration via a Web App.
- Build
- PlatformIO project (C++ source code)
Hardware
Boards: ESP32-C6
ESP32-C6. Verify the exact board revision, wiring and power requirements in the upstream build guide.
Media credit & rights
Upstream project media · rights remain with its owner · Credit: dmachard
Screenshots from the upstream README. Code and firmware were not executed. License notices are included.
View original source ↗ Copyright & removal · Reviewed
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Repository links do not imply author endorsement or verified hardware compatibility. Check the upstream safety guidance before powering or flashing a build.