Harnessing Python 3 for Embedded Hardware
What is MicroPython?
MicroPython is not just a subset, but a full implementation of the Python 3 programming language that is designed to run directly on embedded hardware, such as the Raspberry Pi Pico. This powerful version of Python opens up a world of possibilities for programming microcontrollers.
With MicroPython, you get an interactive prompt (the REPL), which allows you to execute commands immediately via USB Serial connection. It’s like having a conversation with your hardware, where you can give commands and see the effects in real-time.
Moreover, MicroPython comes with a built-in filesystem, making it easier to store and manage your code directly on the device.
For those looking to dive deeper into the capabilities of MicroPython on the Pico, the port includes modules for accessing low-level chip-specific hardware. This means you can get down to the nitty-gritty of your microcontroller and control it with precision.
- The MicroPython Wiki
- The MicroPython Forums
Download the Correct MicroPython UF2 File for Your Board
- Raspberry Pi Pico
- Raspberry Pi Pico W (with Wi-Fi and Bluetooth LE support)
Note: MicroPython distributions for other RP2040-based boards are available on the MicroPython download page.
For more detailed guidance on working with Wi-Fi and Bluetooth on the Raspberry Pi Pico W using C/C++ or MicroPython, refer to the “Connecting to the Internet with Raspberry Pi Pico W” book. Comprehensive information on supported Bluetooth protocols and profiles can be found on the Blue Kitchen BTStack GitHub repository.
Getting Started
- Prepare Your Pico:
- Press and hold the BOOTSEL button.
- While holding the button, connect your Pico to a USB port on your Raspberry Pi or another computer.
- Release the BOOTSEL button once the Pico is connected.
- Mounting and Copying:
- Your Pico will appear as a Mass Storage Device named RPI-RP2.
- Drag and drop the MicroPython UF2 file onto the RPI-RP2 volume.
- Your Pico will automatically reboot and start running MicroPython.
- Accessing the REPL:
- You can now access the REPL (Read-Eval-Print Loop) via USB Serial.
For a comprehensive guide to connecting and programming your Pico in MicroPython, using both the command line and Thonny IDE, refer to the “Raspberry Pi Pico Python SDK” book.