13:37 Flasher

Web installer (one-click, from the browser) for T-Watch Ultra (13:37), Marauder C5 (koko) and generic ESP32. Built on ESP Web Tools. Needs desktop Chrome/Edge (Web Serial) and HTTPS (GitHub Pages provides it).

Layout

flasher/
  index.html            the page (device picker + install + live map)
  manifests/            one manifest per device (chipFamily + bin path)
    twatch.json   → firmware/1337-vXX.bin   (ESP32-S3)
    c5.json       → firmware/koko-c5-v9.bin (ESP32-C5)
    esp32.json    → firmware/esp32.bin      (ESP32)
  firmware/             the merged .bin files (flashed at offset 0)
  worker/worker.js      optional Cloudflare Worker: live counter + visitor map

Publish on GitHub Pages

1. Put this flasher/ content in a repo (or a docs/ folder / gh-pages branch).
2. Repo → Settings → Pages → Source = that branch/folder.
3. Open https://<user>.github.io/<repo>/.

Add / update firmware

Each device flashes a merged image at 0x0. Build it with:

python -m esptool --chip <esp32s3|esp32c5|esp32> merge-bin -o firmware/<name>.bin \
  --flash-size 16MB 0x0 bootloader.bin 0x8000 partitions.bin \
  0xe000 boot_app0.bin 0x10000 firmware.bin

Then point the matching manifests/*.json at it and bump its version. Rename the bin on every release (e.g. 1337-v18.bin) so browsers don't serve a cached old one.

Live counter + visitor map (optional, real numbers only)

Out of the box the counter shows — (no fake numbers); the "you are here" pin works via a free IP lookup. For a real global counter + a dot for every visitor, deploy worker/worker.js (free Cloudflare Worker, ~5 min — steps in that file) and paste its URL into index.html:

const STATS_API = "https://<name>.<you>.workers.dev/hit";

Notes

• ESP32-C5 is new — web-flashing it depends on esptool-js support; if it fails, flash the C5 with the esptool CLI instead.
• Only for hardware you own or are authorized to flash.