Android WebUSB · Desktop WebSerial

Astrolabe Flasher

Connect an ESP32-S3 Astrolabe over USB, select a release image, and flash it directly from the browser with esptool-js.

Firmware build

Loading release manifest...

Baud

App address

Erase entire flash before writing a 0x0 recovery image Include bootloader, partition table, and OTA metadata when release artifacts are available

Advanced local image

Local .bin file

Local mode writes the selected file at the app address above. Use this for test builds or recovery images when they already match the device partition layout.

Idle

Astrolabe Flasher

USB Diagnostics

Log