What is this

• handle esp32 with micropython
• with arduino ide

First

$ ./allow_dev.sh

Useful links

• ESP32 MicroPython documentation

  • ja: https://micropython-docs-ja.readthedocs.io/ja/latest/esp32/quickref.html

• The reference of Arduino ESP32

  • ja: https://garretlab.web.fc2.com/arduino/esp32/reference

Useful commands

ampy

• write/read file

$ pip install adafruit-ampy
$ export AMPY_PORT=/dev/ttyUSB0
$ ampy ls

mu-editor

• GUI code editor for micropython

$ pip install pipenv
$ pipenv --python 3.7
$ pipenv install mu-editor
# not japanese but english
$ LANG=C pipenv run mu-editor
# use latest version
$ git clone https://github.com/mu-editor/mu
$ pyenv global 3.7.9
$ cd mu && python -m pip install -e .
$ mu-editor

picocom

• Connect to REPL through serial communication

$ sudo apt install picocom
$ picocom /dev/ttyUSB0 -b 115200

fritzing

• Designing Circuits IDE

$ sudo apt install fritzing
$ fritzing

esptool.py

$ pip install esptool
$ esptool.py --port /dev/ttyUSB0 erase_flash
# Micropython
$ wget \
    "http://micropython.org/resources/firmware/esp32-idf3-20200902-v1.13.bin"
# Original firmware
# Goto: https://github.com/espressif/esp-at/releases/tag/v2.1.0.0_esp32s2
# Download: ESP32-S2-WROOM_AT_Bin_V2.1.0.0.zip
# Copy: factory/factory_WROOM.bin
$ esptool.py --chip esp32 --port /dev/ttyUSB0 write_flash \
    -z 0x1000 esp32-*.bin