espp Board Console & ESP Flasher

Disconnected
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Serial Monitor

-- Connect to a board's USB-Serial-JTAG or UART port to begin.
Connect to the board's USB-Serial-JTAG or UART port — not a firmware-created USB CDC port. The flasher resets the chip into its ROM bootloader.

ESP Flasher esptool-js

Chip— MAC— Flash—
Offsets are hex. Merged image → one row at 0x0.
The flasher takes over the serial port: if the monitor is connected it is briefly closed, esptool-js resets the chip into the ROM bootloader, writes your binaries, then hard-resets and the monitor reconnects.
Typical offsets — second-stage bootloader 0x0 (ESP32/-S2 use 0x1000, ESP32-S3/-C3 use 0x0), partition table 0x8000, application 0x10000.