Creating a MicroPython Flash Image

Creating your own flash image

I am using pfalcon's MicroPython fork

Using Vagrant

I found this adafruit howto to be very helpful:

ESP8266 & MicroPython SDK Virtual Machine

Using your own environment

Read Using the Toolchain of the esp-open-sdk.

Baking in modules into frozen bytecode

This is very beneficial for saving precious SRAM!

• Be sure you have all the submodules initialized:

  • in ~/micropython: git submodule update --init

• in ~/micropython/mpy-cross: make

• clone picoweb

• clone the micropython-lib

• copy modules (picoweb, uasyncio, umqtt robust & simple) into ~/micropython/ports/esp8266/modules

• in ~/micropython/ports/esp8266: make