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Arduino Nano RP2040 Connect

ABX00053-pinout

Introduction

Section titled “Introduction”

Nano RP2040 Connect ROM Bootloader mode

Section titled “Nano RP2040 Connect ROM Bootloader mode”

Since Arduino Nano RP2040 Connect upload procedure relies on the Raspberry’s bootloader, it could be seen as a mass storage device from your computer. If your machine is fast enough during a sketch upload, it can notify you about a USB device being plugged.

When a sketch is uploaded successfully, the mass storage of the board may be visible to the OS. When this occurs, you can force the ROM bootloader mode, which will enable mass storage, allowing you to upload UF2 images like CircuitPython, MicroPython, a regular Arduino sketch or an Edge Impulse firmware.

If the board is not detected even when is connected to your computer. You can solve through the following steps:

  • Connect jumper wire between GND and REC pins
  • Press Reset button
  • Unplug and plug back the UBS cable
  • Upload the Arduino sketch

A factory-reset can be performed by dragging the blink.ino.elf.uf2 file into the mass storage (wait for the mass storage to automatically unmount).

Post Install script

Section titled “Post Install script”

If you can’t manage to get the Arduino Nano RP2040 Connect working, try to run this command:

Terminal window
sudo ~/.arduino15/packages/arduino/hardware/mbed_nano/4.0.2/post-install.sh

By the time you’ll read this article, the version 4.0.2 could have changed. If the version becomes X.Y.Z, you would need to run the command:

Terminal window
sudo ~/.arduino15/packages/arduino/hardware/mbed_nano/X.Y.Z/post-install.sh

Tutorials

Section titled “Tutorials”

Add the tutorials from ML, show interconnection. They’re under RaspberryPi because of the core.

MicroPython

Section titled “MicroPython”

MicroPython is a lean and efficient implementation of the Python 3 programming language that is optimized to run on microcontrollers and in constrained environments.

Install MicroPython

Section titled “Install MicroPython”

Took inspiration from Installing MicroPython official guide.

Terminal window
git clone https://github.com/arduino/lab-micropython-installer.git
cd lab-micropython-installer
git checkout v1.4.0 # ensure to install a stable version
npm install
npm run start

Then connect the board and follow the instruction on the installer window.

MicroPython IDE

Section titled “MicroPython IDE”

You can write your own code using the new MicroPython IDE developed my Arduino team.

Arduino Lab for MicroPython Lightweight editor for MicroPython
Terminal window
git clone https://github.com/arduino/lab-micropython-editor
cd lab-micropython-editor
npm install
npm run dev

Then click on upper-left button .

MicroPython Code

Section titled “MicroPython Code”

Take a look at the following directory:

Embedded 📂 arduino/nano-rp2040/micropython

CircuitPython

Section titled “CircuitPython”
CircuitPython on Arduino Nano RP2040 Connect

CircuitPython is a derivative of MicroPython designed to simplify experimentation and education on low-cost microcontrollers. Simply copy and edit files on the CIRCUITPY drive to iterate.

Install CircuitPython

Section titled “Install CircuitPython”

Click the link below and download the latest UF2 file.

Download the latest version of CircuitPython for this board CircuitPython on the Arduino Nano RP2040 Connect

To enter the bootloader, double-tap the reset button. After that, the RPI-RP2 drive will appear as a new disk drive. If the drive does not appear, release the reset button, and then repeat the process above (double-tap the reset button).

Drag the previously downloaded .uf2 file to RPI-RP2 drive.

The RPI-RP2 drive will disappear and a new disk drive called CIRCUITPY will appear. Let’s it, the board is read yto be programmed.

CircuitPython IDE

Section titled “CircuitPython IDE”

I suggest you to use Mu Editor.

Run the IDE with the board attached. It should auto-detect Adafruit CircuitPython mode. Otherwise, select it my yourself by pressing button on the upper left of the window.

CircuitPython Code

Section titled “CircuitPython Code”

Take a look at the following directory:

Embedded 📂 arduino/nano-rp2040/circuitpython

Conclusion

Section titled “Conclusion”

Documentation

Section titled “Documentation”

Here is the full list of links I am using to write this article: