ESPHome for Heltec Wireless Paper
Adding ESPHome device support for the Heltec Wireless Paper e-ink display board, enabling Home Assistant integration for low-power dashboard displays.
Overview
The Heltec Wireless Paper is an ESP32-S3 board with an integrated 2.13" e-ink display, designed for low-power wireless sensor nodes and status displays. This project adds first-class ESPHome support so the board can be used as a native Home Assistant display.
Hardware
| MCU | ESP32-S3, dual-core Xtensa LX7 |
|---|---|
| Display | 2.13" e-ink, 250x122, partial refresh |
| Wireless | WiFi 4 + Bluetooth 5 LE |
| Battery | LiPo with onboard charging via USB-C |
What Works
- Display driver with partial and full refresh support
- Deep sleep with wake-on-timer for battery operation
- WiFi and BLE coexistence
- Home Assistant sensor and text display components
In Progress
- Button input handling (3 user-facing buttons on board)
- Battery level reporting
- OTA updates over WiFi