MicroPython ESP8266

Installation

You will want to make sure you are installing the latest version of Micropython. Download the appropriate .bin for your chip and flash it to your board using the esptool. You will most likely need the UART driver

pip install esptool

Flashing your board

First be sure to erase the flash:

esptool.py -p /dev/tty.SLAB_USBtoUART erase_flash

Then you will need to write the flash to your board. Be sure to connect with an appropriate baud rate:

esptool.py --port /dev/tty.SLAB_USBtoUART --baud 115200 write_flash --flash_size=detect 0 esp8266-20170108-v1.8.7.bin

Connecting to your board

If you are using a mac just leverage the screen program:

screen /dev/tty.SLAB_USBtoUART 115200

This should connect you to the boards REPL

Connecting to the network

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Code files

Micropython provides a "Virtual" filesystem for you code and collateral (config files etc.).

There are two files that you should take note of boot.py and main.py. The boot.py file will be executed immediately as the interpreter is brought online. It is here that we can place code to connect to a network for example. The main.py file should contain the entry point for your Micropython code. This will typically follow the same "Initialize" and enter "While Loop" pattern of code that you see if Arduinos

Extras

An excellent source for additional "Standard Library" like code can be found at Micropython-lib.

For shipping up code to you board I highly suggest using either the Pycharm Pluggin or the ampy modul e tool from adafruit.

ampy --help

ampy -p /dev/tty.SLAB_USBtoUART -b 115200 ls

MQTT on Hassio

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