MicroPython on ESP32 with VScode

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Install MicroPython on ESP32

1. Install esptool.py

Open command prompt or terminal and run the following command to install the esptool.py tool.

pip install esptool

2. Connect ESP32 to PC and check COM port number

3. Erase flash

Open command prompt or terminal and run the following command to erase the flash memory of the ESP32. Replace COM13 with the actual COM port number.

esptool.py --chip esp32 --port COM13 erase_flash # Local cmd
python -m esptool --port COM13 erase_flash # Global cmd

4. Download MicroPython firmware

Download the MicroPython firmware from the following link refer to your ESP32 board model. https://micropython.org/download/

For me, I downloaded the generic ESP32 / WROOM firmware: https://micropython.org/download/ESP32_GENERIC/

Open terminal or command prompt and navigate to the directory where you downloaded the firmware file. Then run the following command to download the firmware to the ESP32.

esptool.py --chip esp32 --port COM13 --baud 460800 write_flash -z 0x1000 ESP32_GENERIC-20240222-v1.22.2.bin    # Local cmd
python -m esptool --port COM13 --baud 460800 write_flash -z 0x1000 ESP32_GENERIC-20240222-v1.22.2.bin  # Global cmd

Replace COM13 with the actual COM port number and ESP32_GENERIC-20240222-v1.22.2.bin with the actual MicroPython firmware file name.

5. Reset ESP32

Press the reset button on the ESP32 board.

6. Done!

You can now use putty.exe to connect to the ESP32 and run MicroPython via the REPL (Read-Evaluate-Print-Loop) or run scripts on ESP32.

Run MicroPython on ESP32 with vscode

1. Install node.js and Visual Studio Code. (Restart Vscode after node.js installation)

2. Install pymakr extension in Visual Studio Code extension marketplace.

3. Connect ESP32 to PC and check COM port number.

4. Open Visual Studio Code and create new project in pymakr extension

5. Connect device in pymakr extension.

6. Synch exmaple project to device in pymakr extension.

import sys
import time

def main():
    print("MicroPython program is running ")
    time.sleep(0.5)

if __name__=="__main__":
  print("{} initialized".format(sys.platform))
  while(1):
    try:
      main()
    except KeyboardInterrupt:
      print("Program stopped")
      sys.exit(0)

7. Reset ESP32 to watch output in terminal.

8. Done! You can now edit and run MicroPython code on ESP32 with Visual Studio Code.