Flash a .bin firmware image over USB serial using esptool-js. Load a local file or pull one straight from the firmware server.
Plain serial console over USB — send commands, watch device logs, save a session.
Web SerialConsole over Bluetooth Low Energy using the Nordic UART Service, for boards that expose commands over BLE.
Web BluetoothSymbolize a device coredump against its build ELF — full per-task backtrace, same output as idf.py coredump-info.