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The original was posted on /r/homeassistant by /u/Economy-Case-7285 on 2025-04-12 16:26:30+00:00.
What if the digital price tags used in grocery stores could be repurposed into smart home displays—and all for a surprisingly cost-effective setup?
I just published a blog post on how I used BLE epaper shelf labels, an ESP32, OpenEPaperLink, and Home Assistant to create low-power, always-on displays around the house. These tags are compact, energy-efficient, and much more affordable than traditional smart displays.
In the post I cover:
- Where to find compatible tags and what to look for
- Flashing and configuring OpenEPaperLink on the ESP32
- Designing custom layouts with
drawcustom
- Integrating it all with Home Assistant for live data
Let me know what you think—or share if you've built something similar!