micropython-esp-wifi-manager 1.0.0

MicroPython WiFi Manager to configure and connect to networks

ESP WiFi Manager

MicroPython WiFi Manager to configure and connect to networks

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Setup

The esptool is required to flash the micropython firmware onto the device.

For interaction with the filesystem of the device the Remote MicroPython shell can be used.

Installation

Install both python packages with the following command in a virtual environment to avoid any conflicts with other packages installed on your local system.

python3 -m venv .venv
source .venv/bin/activate

pip install esptool
pip install rshell

Test both tools by showing their man/help info description.

esptool.py --help
rshell --help

Flash firmware

To flash the micropython firmware as described on the micropython firmware download page, use the esptool.py to erase the flash before flashing the firmware.

esptool.py --chip esp32 --port /dev/tty.SLAB_USBtoUART erase_flash
esptool.py --chip esp32 --port /dev/tty.SLAB_USBtoUART --baud 460800 write_flash -z 0x1000 esp32-20210623-v1.16.bin

If the Micropython board is equipped with an external PSRAM chip, the esp32spiram-20210623-v1.16.bin can also be used for ESP32 devices. If there is no external PRSAM only the non SPIRAM version is working.

Upload files to board

Install package with pip

Connect to a network

import network
station = network.WLAN(network.STA_IF)
station.connect('SSID', 'PASSWORD')
station.isconnected()

and install this lib on the MicroPython device like this

import upip
# may use the latest test version of it, by adding test.pypi.org as the first
# location to search for the package
# upip.index_urls = ["https://test.pypi.org/pypi", "https://micropython.org/pi", "https://pypi.org/pypi"]
upip.install('micropython-esp-wifi-manager')
# its dependencies will be installed alongside

# if test.pypi.org is added to the index urls, required depencendies won't be
# installed if they are not available from test.pypi.org, may install them
# manually
# upip.index_urls = ["https://micropython.org/pi", "https://pypi.org/pypi"]
# upip.install('picoweb')
# upip.install('micropython-ulogging')
# upip.install('utemplate')

rshell

Copy the module(s) to the MicroPython board and import them as shown below using Remote MicroPython shell

Open the remote shell with the following command. Additionally use -b 115200 in case no CP210x is used but a CH34x.

rshell -p /dev/tty.SLAB_USBtoUART --editor nano

Create compressed CSS and JS files as described in the simulation static files README to save disk space on the device and increase the performance (webpages are loading faster)

mkdir /pyboard/lib/
mkdir /pyboard/lib/wifi_manager/
mkdir /pyboard/lib/wifi_manager/static/
mkdir /pyboard/lib/wifi_manager/static/css
cp static/css/*.gz /pyboard/lib/wifi_manager/static/css
# around 24kB compared to uncompressed 120kB

# optional, not used so far
# mkdir /pyboard/lib/wifi_manager/static/js
# cp static/js/*.gz /pyboard/lib/wifi_manager/static/js
# around 12kB compared to uncompressed 40kB

mkdir /pyboard/lib/wifi_manager/templates/
cp templates/* /pyboard/lib/wifi_manager/templates/
# around 20kB

cp wifi_manager/wifi_manager.py /pyboard/lib/wifi_manager/
cp main.py /pyboard
cp boot.py /pyboard
# around 40kB

Open REPL in rshell

Call repl in the rshell. Use CTRL+X to leave the repl or CTRL+D for a soft reboot of the device

Install Micropython Packages

Restart ESP device and open the printed IP address in your browser

Close all connection, and start REPL of uPyCraft or other serial connection.

import upip
upip.install('picoweb')
upip.install('utemplate')
upip.install('micropython-ulogging')
upip.install('micropython-brainelectronics-helper')