Install

Flash Ripple from your browser.

Plug the board into your computer with a USB cable and press the button. It takes about a minute.

Your board

This browser can't flash USB devices. Open this page in Chrome or Edge on a computer. Flashing needs a secure (https) connection.

After flashing

On your phone or laptop, join the WiFi network Ripple-xxxxxx that the board opens (no password).
A setup page opens by itself. If it doesn't, browse to http://192.168.4.1/.
Choose your WiFi, type its password and press Connect.
Reconnect to your usual WiFi and open http://ripple-xxxxxx.local/ (the page shows the exact address).
In the dashboard, press Start guided calibration.

Use a USB cable that carries data: some are charge-only.
If the installer can't connect, hold the board's FLASH button while you press RESET, then try again.
When asked, erasing the flash is fine on a first install. It also clears old settings.
More help in the troubleshooting guide.