esptool.py
Bootloader utility for Espressif chips (e.g. ESP8266).
TLDR
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
