# ESP_UniClock for the NixieIN12v2 clock

Firmware for this clock, based on [ESP_UniClock](https://github.com/gpeter62/ESP_UniClock) by
Peter Gautier (GPL-3.0-or-later), vendored from upstream commit `1189810` (2026-09-07).

- `ESP32_UniClock2/`: the upstream sketch folder (all `.ino`/`.h` files and the web UI in `data/`).
  It keeps the upstream layout, so it still opens in the Arduino IDE.
- `lib/`: the library versions bundled upstream (`libraries/*.zip`), only those the ESP8266 build
  needs. The upstream manuals, datasheets, photos and ESP32-only libraries were left out.
- `platformio.ini`: PlatformIO build for the ESP-12 (4 MB flash, 2 MB SPIFFS).

Local changes are separate commits on top of the import (`git log -- firmware/uniclock`).

## Build and flash

```sh
pio run                      # build
pio run -t upload            # flash the firmware over COM7
pio run -t uploadfs          # flash the web UI (data/) to SPIFFS
pio device monitor           # serial log, 115200 Bd
```

The CH340C adapter has no auto-reset: before each upload, hold GPIO0 to GND, tap RST to GND, then
release GPIO0. See `CLAUDE.md` in the repo root for the wiring.