This repository contains various examples of ESP32 MCU wireless communication in MicroPython
All instructions were tested under Ubuntu 18.04 and ESP-Wroom-32 Before starting, you will need:
- python3.6-dev
- python3.6-venv
- python3-pip
- user added to dialout group
git clone [email protected]:wizzdev-pl/esp32_examples.git
To setup python environment with required tools use:
cd <repo directory>
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
Connect your ESP to usb port if uploading fails try another port.
Activate virtual environment and run following commands:
source venv/bin/activate
./scripts/upload_micropython.sh
python3 scripts/upload_scripts.py
The deafault port for these scripts is /dev/ttyUSB0, but if your device is connected to a different one use: --port argument and specify your target port.
You need to upload MicroPython firmware only once. After uploading scripts to esp32 press "EN" button.
After the scripts are uploaded, on every startup ESP will act as an Wifi Access Point (AP) with SSID: WizzDev AP that you can connect to.
When connected to AP, open http://192.168.4.1/ (this is the board's default IP address) in your browser and you will see a simple website that is being hosted on ESP.
To display output from esp32 serial port run command:
picocom /dev/ttyUSB0 --baud 115200
Your esp32 might be connected on different port when you use serial usb devices. To exit picocom use ctrl+a and ctrl+x commands
The latest Micropython version is available at https://micropython.org/download#esp32 For May of 2020, it is recommended to use newest stable IDF3 MicroPython version, but it may be better to use IDF4 in the future.
While powering on, the MicroPython on the ESP will first execute 'boot.py' file.
For More info go to https://docs.micropython.org/en/latest/esp32/quickref.html#