[GH-ISSUE #486] Feature request: ESP32 Arduino BLE tag template. #1409

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sascha_hemi · 2026-03-20T19:08:08+01:00

sascha_hemi commented

2026-03-20 19:08:08 +01:00

Originally created by @shuzonudas on GitHub (Jul 19, 2025).
Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/486

Currently, OpenEpaperLink primarily focuses on specific e-paper driver boards. Users interested in creating custom BLE-enabled e-paper or LCD tags using ESP32 microcontrollers lack clear guidance and pre-existing examples within the project. This makes it difficult for hobbyists and developers to integrate their custom display solutions with the OpenEpaperLink ecosystem.

I propose adding support and documentation for implementing custom ESP32 BLE tags with either e-paper or generic LCD displays. This would involve:

Providing a Reference Arduino Project: A basic, well-commented Arduino project for an ESP32 that demonstrates:
Example display initialization and rendering (either a generic LCD like an ST7789 or a common e-paper display like an e-Paper Shield or Waveshare).
The necessary BLE services and characteristics for OpenEpaperLink to interact with the tag and push display data.

Thank you for your continued great work on OpenEpaperLink!

Originally created by @shuzonudas on GitHub (Jul 19, 2025). Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/486 Currently, OpenEpaperLink primarily focuses on specific e-paper driver boards. Users interested in creating custom BLE-enabled e-paper or LCD tags using ESP32 microcontrollers lack clear guidance and pre-existing examples within the project. This makes it difficult for hobbyists and developers to integrate their custom display solutions with the OpenEpaperLink ecosystem. I propose adding support and documentation for implementing custom ESP32 BLE tags with either e-paper or generic LCD displays. This would involve: - Providing a Reference Arduino Project: A basic, well-commented Arduino project for an ESP32 that demonstrates: - Example display initialization and rendering (either a generic LCD like an ST7789 or a common e-paper display like an e-Paper Shield or Waveshare). - The necessary BLE services and characteristics for OpenEpaperLink to interact with the tag and push display data. Thank you for your continued great work on OpenEpaperLink!

sascha_hemi added the enhancement label 2026-03-20 19:08:08 +01:00

sascha_hemi closed this issue

2026-03-20 19:08:08 +01:00

sascha_hemi commented

2026-03-20 19:08:08 +01:00

@nlimper commented on GitHub (Jul 19, 2025):

I'm not very keen on this AI-generated description. If you ask AI, you can also ask it to just create such a project for you. ;-)
But anyway.

OEPL with BLE is currently not very stable. But I have some reference projects for you that uses WiFi (the AP uses multicast UDP to communicate with other AP's, but that mechanism can also be used to connect displays):
https://github.com/nlimper/TFTtag-for-OpenEpaperLink -> demonstration project: esp32 connected to a TFT screen and BLE printer (prints out OEPL screens)
https://github.com/nlimper/OEPL-ESP32-epaper -> color epaper connected to esp32
You can tinker with those projects.

@nlimper commented on GitHub (Jul 19, 2025): I'm not very keen on this AI-generated description. If you ask AI, you can also ask it to just create such a project for you. ;-) But anyway. OEPL with BLE is currently not very stable. But I have some reference projects for you that uses WiFi (the AP uses multicast UDP to communicate with other AP's, but that mechanism can also be used to connect displays): https://github.com/nlimper/TFTtag-for-OpenEpaperLink -> demonstration project: esp32 connected to a TFT screen and BLE printer (prints out OEPL screens) https://github.com/nlimper/OEPL-ESP32-epaper -> color epaper connected to esp32 You can tinker with those projects.

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Reference: starred/OpenEPaperLink#1409