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Buildingmicropythonforesp8266 &pybd boards.

Setting up the tool chains for the esp8266 on mac was a pain, so I am using aVagrantfile to manage a VM with the tools.

Create a VM with thevirtualbox provider by usingvagrant up.The scripts provisioning the image and building the firmware are inproviders.

The VM will mount the folder containing theVagrantfile assources directory, and copy firmware images into it.To build the firmware usevagrant provision --provision-with build-image.

Python sources that should be baked into the firmware can be added tomodules.If sources from a different location should be added these can be added tomanifest.py.

Install micropython on an esp8266 board:

• Install firmware
• Development reference

Steps to follow (backup first!):

pip3 install esptoolesptool.py --port /dev/tty.usbserial* read_macesptool.py --port /dev/tty.usbserial* erase_flashesptool.py --port /dev/tty.usbserial* --baud 460800 write_flash --flash_size=detect 0<firmware.bin>

Usepydfu.py from micropython:

pip3 install pyusb pyserialpython3 pydfu.py -u<firmware.dfu># -- or via build if mapped to the image --make BOARD=PYBD_SF2 deploy

• Prebuild firmeare
• Pybd update process
• Firmware building
• Firmware building on macOS
• Espressif toolchain setup
• https://github.com/fcollova/micropython-docker-build
• https://github.com/flusflas/micropython-builder
• https://github.com/larsks/docker-image-esp-open-sdk
• and others