Web Flasher
===========

You can flash the firmware directly from your browser — no toolchain, no
``cargo``, nothing to install.

.. note::

   The Web Flasher uses the Web Serial API, which is currently supported by
   **Google Chrome** and **Microsoft Edge** on desktop. It will not work in
   Firefox or Safari, or on mobile.

Steps
-----

1. Open the **Web Flasher**:
   `f321x.github.io/offline-bitcoin-atm <https://f321x.github.io/offline-bitcoin-atm/>`_.
2. Connect your ESP32 to the computer over USB.
3. Click **Install Firmware** and select the serial port for your ESP32.
4. Wait for the flash to complete.

The flasher always serves the firmware from the latest
`GitHub release <https://github.com/f321x/offline-bitcoin-atm/releases>`_.

After flashing, the ATM starts a WiFi access point for initial configuration —
continue with :doc:`../configuration`.