flash.md 1.3 KB

Adafruit provides a really nice firmware flashing tutorial. Below you’ll find just the basics for the two popular tools esptool and NodeMCU Flasher.

!!! note «Note:»

Keep in mind that the ESP8266 needs to be put into flash mode before you can flash a new firmware!

esptool

A cute Python utility to communicate with the ROM bootloader in Espressif ESP8266. It is intended to be a simple, platform independent, open source replacement for XTCOM.

Source: https://github.com/themadinventor/esptool

Supported platforms: OS X, Linux, Windows, anything that runs Python

Running esptool.py

Run the following command to flash an aggregated binary as is produced for example by the cloud build service or the Docker image.

esptool.py --port <USB-port-with-ESP8266> write_flash 0x00000 <nodemcu-firmware>.bin

NodeMCU Flasher

A firmware Flash tool for NodeMCU…We are working on next version and will use QT framework. It will be cross platform and open-source.

Source: https://github.com/nodemcu/nodemcu-flasher

Supported platforms: Windows