Web installer
Flash RavLight from your browser
Connect the board via USB, pick fixture and board below, then click Install. The full 4 MB image (firmware + web UI) is written in one pass — also the right path when migrating from WLED.
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⚠ This browser doesn't support Web Serial. Use Chrome or Edge on desktop —
or flash manually with esptool.
The install dialog also offers Erase device — select it when the board previously ran WLED or another firmware.
Before you start
- Use a data USB cable (some charge-only cables have no data lines).
- If the board doesn't show up in the port dialog, install the USB-serial driver:
CP210x or
CH340.
- Boards without native USB (e.g. WT32-ETH01) need a USB-TTL adapter wired to TX/RX/GND with GPIO0 held low at power-up.
- After flashing, the board opens a RavLight-XXXX WiFi access point — connect and open
http://4.3.2.1 to configure the network.