mangavalkandClaude Opus 5.5 6e4d5e152b Power-cycle-friendly Nano boot and ESP relay handling ...

Nano / driver:
- No full on/off flip at boot; the first display() after boot is a forced
  full redraw instead, since the physical dot state is unknown
- Send READY when booted

ESP32:
- relayOn() only switches and waits when the relay was off, and waits for
  the Nano's READY (3 s timeout) instead of a fixed 3 s on every frame
- relayOff() ends Serial and releases the TX pin so the idle-high line no
  longer back-powers the Nano through its RX pin
- No display commands are sent while the relay is off
- Switching the relay on cancels a pending power-off countdown

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-13 00:12:28 +02:00

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BROSE9323

Power-cycle-friendly Nano boot and ESP relay handling

2026-10-13 00:12:28 +02:00