ESP 8266 and Micropython

Install

pip install esptool

esptool.py erase_flash

esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash -fm dio --flash_size=detect 0 esp8266-20200911-v1.13.bin

Coding

Get REPL: miniterm /dev/ttyUSB0 115200

Using the PyCharm Micropython plugin script:

python3 /home/bachi/.local/share/JetBrains/PyCharm2020.2/intellij-micropython/scripts/microrepl.py /dev/ttyUSB0

Quick Ref: http://docs.micropython.org/en/latest/esp8266/quickref.html

Libraries: http://docs.micropython.org/en/latest/library/index.html

Troubleshooting

Get boot loader output:

miniterm /dev/ttyUSB0 74880

OTA:

https://github.com/rdehuyss/micropython-ota-updater

To send a new OTA update to the ESPs:

1. Create and push a git tag, e.g. git tag -a v1.1.0 -m "1.1.0" (git config push.followTags true can be useful)
2. Publish a new release on GitHub, e.g. https://github.com/bachi76/micropython-ota-test/releases/
3. On the next device boot, the new files in main/ are downloaded and after another reboot installed.