Using MicroPython

MicroPython is a streamlined version of Python designed for microcontrollers. It is ideal for rapidly developing embedded projects, letting you write and debug firmware with familiar Python syntax.

Key features

• Python syntax that is easy to learn and use
• Interactive REPL (read-eval-print loop)
• Rich standard library and hardware driver support
• Fast prototyping without compilation

Use cases

1. Rapid prototyping: validate ideas quickly without complex build steps
2. Teaching and learning: friendly Python syntax for beginners
3. IoT projects: Wi-Fi, Bluetooth, and other wireless connectivity

Montic product support

	W02	W04
Chip	Expressif ESP32-C6	WCH CH32V208
Status	✔ Support	❌ Not Support

Install MicroPython on Montic W02

Montic W02 uses the ESP32-C6 microcontroller, which has official MicroPython support.

Download MicroPython firmware for ESP32-C6

Prerequisites

Windows

1. Install Python

   Download and install Python 3 from the official website.

   Note

   Select “Add Python to PATH” during installation so you can use Python in the terminal.

2. Install esptool

   Open Windows CMD.exe or PowerShell.exe and install esptool with pip:

   pip install esptool

   Tip

   On Windows you may see the executable named esptool instead of esptool.py; both are equivalent.

3. Download the MicroPython firmware

   Get the latest .bin firmware from the MicroPython download page.

   We recommend downloading the latest stable release, for example: ESP32_GENERIC_C6-20251209-v1.27.0.bin.

Linux

1. Install Python and esptool

   Most Linux distributions ship with Python 3. Install esptool via your package manager:

   # Install with pip
   pip install esptool
   
   # Or use the system package manager (Debian/Ubuntu)
   sudo apt install esptool

2. Configure serial permissions

   Add your user to the dialout group to access serial ports:

   sudo usermod -a -G dialout $USER

   Note

   Log out and back in for the new group membership to take effect.

3. Download the MicroPython firmware

   Get the latest .bin firmware from the MicroPython download page.

   We recommend downloading the latest stable release, for example: ESP32_GENERIC_C6-20251209-v1.27.0.bin.

macOS

1. Install Python and esptool

   macOS usually includes Python 3. Install esptool with pip:

   pip3 install esptool

   If Python 3 is missing, install it via Homebrew:

   brew install python3
   pip3 install esptool

2. Download the MicroPython firmware

   Get the latest .bin firmware from the MicroPython download page.

   We recommend downloading the latest stable release, for example: ESP32_GENERIC_C6-20251209-v1.27.0.bin.

Flash the MicroPython firmware

Windows

1. Connect Montic W02 to your computer

   Use a USB-C data cable to connect the board. In Device Manager, locate the COM port (for example COM4).

2. Erase flash (first installation)

   If this is your first time installing MicroPython, erase the entire flash first:

   esptool --port COM4 erase_flash

   Tip

   Replace COM4 with your actual port number.

3. Flash the firmware

   Run the following command to flash MicroPython:

   esptool --port COM4 --baud 460800 write_flash 0 ESP32_GENERIC_C6-20251209-v1.27.0.bin

   Note

   Swap the firmware filename for the one you downloaded. If flashing fails, remove the --baud 460800 flag to use the slower default speed.

Linux

1. Connect Montic W02 to your computer

   Use a USB-C data cable to connect the board. The serial port is typically /dev/ttyUSB0 or /dev/ttyACM0.

   Check with:

   ls /dev/ttyUSB* /dev/ttyACM* 2>/dev/null

2. Erase flash (first installation)

   If this is your first time installing MicroPython, erase the entire flash first:

   esptool.py --port /dev/ttyUSB0 erase_flash

3. Flash the firmware

   Run the following command:

   esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash 0 ESP32_GENERIC_C6-20251209-v1.27.0.bin

   Note

   Swap the firmware filename for the one you downloaded. If flashing fails, remove the --baud 460800 flag to use the slower default speed.

macOS

1. Connect Montic W02 to your computer

   Use a USB-C data cable to connect the board. The serial device is usually /dev/cu.usbmodem01 or similar.

   Check with:

   ls /dev/cu.usb*

2. Erase flash (first installation)

   If this is your first time installing MicroPython, erase the entire flash first:

   esptool.py --port /dev/cu.usbmodem01 erase_flash

3. Flash the firmware

   Run the following command:

   esptool.py --port /dev/cu.usbmodem01 --baud 460800 write_flash 0 ESP32_GENERIC_C6-20251209-v1.27.0.bin

   Note

   Swap the firmware filename for the one you downloaded. If flashing fails, remove the --baud 460800 flag to use the slower default speed.

Connect to the MicroPython REPL

After flashing, connect to the interactive MicroPython REPL over serial.

Windows

We recommend PuTTY or Thonny IDE:

Using PuTTY:

• Connection type: Serial
• Serial line: COM4 (your COM port)
• Speed: 115200

Using Thonny IDE: Thonny is designed for MicroPython and supports editing, uploading, and REPL interaction.

Linux

Connect with screen or picocom:

# Using screen
screen /dev/ttyUSB0 115200

# Using picocom
picocom -b 115200 /dev/ttyUSB0

To exit screen: press Ctrl+A, then K, and confirm with Y.

macOS

Connect with screen:

screen /dev/cu.usbmodem01 115200

Or use Thonny IDE for a friendly graphical experience on macOS.

Hello World example

After connecting, you will see the MicroPython >>> prompt. Try running:

# Print Hello World
print("Hello, Montic W02!")

Tip

GPIO pin numbers may vary by hardware revision. Refer to the W02 product page for pin mappings.

FAQs

Q: What if flashing fails?

A: Try the following:

• Remove the --baud 460800 flag to use the default speed
• Make sure you are using a USB data cable, not a charge-only cable
• Hold the BOOT button while flashing

Q: The serial port is missing. What should I check?

A: Depending on your OS:

• Windows: look up the COM port in Device Manager
• Linux: ensure your user is in the dialout group
• macOS: check for /dev/cu.usb* devices

Q: REPL is unresponsive.

A: Press the RST button to reboot, or confirm the baud rate is 115200.

More resources

MicroPython documentation Complete MicroPython documentation and tutorials

ESP32-C6 MicroPython tutorial Getting started with MicroPython on ESP32

Using the UF2 Bootloader Learn how to update firmware with the UF2 Bootloader