Upgrade firmware

Flash the latest build straight from your browser — no PlatformIO, no drivers, just a USB cable and a Chromium-based browser.

build 20260715_26

Install connects over Web Serial — works in Chrome, Edge and other Chromium browsers

Your browser doesn't support Web Serial. Open this page in Chrome or Edge on desktop instead.

Web Serial isn't available here — this page needs to be served over HTTPS (or localhost).

Plug the board in over USB first. The installer erases and writes the bootloader, partition table, application and filesystem images in one pass — existing WiFi credentials and saved settings in NVS are kept.

This build

Boardesp32dev — original ESP32, dual-core Xtensa

PartitionsESP32_4MB_1APP.csv — single factory app slot, no OTA

FilesystemSPIFFS image flashed alongside the app