Custom E-Paper Station

A connected information display based on an ESP32-C6 and a 4.2" E-Paper Screen.

🌟 Features

• Multi-Screen Display:
  • Events: Displays upcoming calendar events.
  • Sensors: 16 configurable slots for displaying data from APIs (Prometheus, JSON).
• Connectivity:
  • WiFi: For data fetching methods.
  • Bluetooth LE (BLE): For easy configuration via a Web App.
• Web Configuration App

🛠️ Hardware

• Microcontroller: ESP32-C6 (RISC-V)
• Display: GoodDisplay GDEY042T81 (4.2" E-Ink) or compatible GxEPD2 supported screen.

📂 Project Structure

• firmware/: PlatformIO project (C++ source code).
• web/: The Configuration Web App (HTML/JS/CSS).
• docs/: Additional documentation.
• enclosure/: STL files

🚀 Getting Started

1. Firmware

1. Open the firmware folder in VS Code with the PlatformIO extension.
2. Connect your ESP32-C6.
3. Click Upload.

2. Web Interface

1. Open web/index.html in a Chrome-based browser or your mobile
2. Click Connect to Device.
3. Select your ESP32 from the list (named "ESP32_Config").
4. Configure your WiFi and Sensors!

🔧 Configuration

The device exposes a generic sensor system. You can map any JSON API value to a display slot.

• Source Type: Prometheus (raw text) or JSON.
• JSON Path: Extract specific values using dot notation (e.g., feeds.field1).
• Adjustments: Set divisors, decimals, and units.