Joy Laundromat

Card Displays

ELEGOO ESP32 2.8" LCD devices showing live NFC card read activity

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infoAbout

The ELEGOO 2.8" ESP32 Touch Screen Display (Amazon B0FJQ6RK39) — an all-in-one ESP32 board with an ILI9341 IPS LCD — subscribes to joy-laundromat/nfc/+/card-read and renders live card activity on its LCD. Backfills the last 20 reads from /api/status/nfc/reads at boot.

Heartbeats are published to joy-laundromat/display/{boardId}/heartbeat every 5 minutes. Devices are considered offline after 6 minutes without a heartbeat.

Firmware source: esp32/esp32-card-display/