
The Raspberry Pi Pico is a powerful and flexible microcontroller board and one of the newest additions to the Raspberry Pi family of development boards. It is built around a custom-designed silicon chip developed entirely by the Raspberry Pi Foundation, making it a unique and efficient solution for embedded systems and electronics projects.
The Pico board is designed to help users get started quickly with development, whether they choose to use the official C/C++ SDK or the MicroPython programming environment. It combines low cost, high performance, and flexible digital interfaces, making it suitable for both beginners and experienced developers.
At the heart of the Raspberry Pi Pico is the RP2040 microcontroller, which features a dual-core Arm Cortex-M0+ processor with a flexible clock speed of up to 133 MHz. The board also includes 2 MB of onboard flash memory for program storage and 264 KB of SRAM for efficient data processing.
To build projects with the Pico, developers often use additional components such as breadboards, power supplies, push buttons, jumper wires, and display modules, which make prototyping easier and more flexible.
The board is designed with castellated edges, allowing it to be soldered directly onto custom carrier boards for embedded applications. It also provides a very user-friendly programming method using drag-and-drop programming over USB mass storage, making development quick and simple.
Programming the Raspberry Pi Pico with MicroPython is straightforward thanks to its built-in UF2 bootloader and drag-and-drop functionality.
Follow these steps to install MicroPython on your Pico:
Download the MicroPython UF2 firmware file.
Press and hold the BOOTSEL button on the Pico while connecting it to your computer via USB.
Release the BOOTSEL button once the board is connected.
The Pico will appear as a mass storage device named “RPI-RP2.”
Drag and drop the MicroPython UF2 file onto the RPI-RP2 drive.
The Pico will automatically reboot and start running MicroPython.
After installation, you can access the REPL (Read-Eval-Print Loop) and interact with the Pico using USB serial communication.
Blinking an LED is usually the first program written when testing a new microcontroller. The Raspberry Pi Pico includes a built-in LED connected to GPIO pin 25, making it easy to test your first program.
Follow these steps to run the LED blink example:
Download the Blink UF2 file.
Press and hold the BOOTSEL button while connecting the Pico to your computer using USB.
The board will appear as a mass storage device called RPI-RP2.
Drag and drop the Blink UF2 file onto the RPI-RP2 drive.
Once the file is copied, the Pico will restart and the onboard LED will begin blinking, confirming that the program has been successfully uploaded.