# esptool.py > Bootloader utility for Espressif chips (e.g. ESP8266). > More information: . - Flash a firmware file to an ESP chip with a given port and baud rate: `sudo esptool.py --port {{port}} --baud {{baud_rate}} write_flash 0x0 {{path/to/firmware.bin}}` - Clear the flash of an ESP chip: `sudo esptool.py --port {{port}} --baud {{baud_rate}} erase_flash`