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README.md

PicoCalc Hello World

Demonstrate how to use spi screen, i2c keyboard and psram on PicoCalc.

Building

mkdir build
cd build
export PICO_SDK_PATH=/where/pico-sdk/is
cmake ..
make

How to Upload UF2

Uploading a UF2 file to the Raspberry Pi Pico on a Linux system is straightforward. Here’s how you can do it:

Step 1: Prepare Your Raspberry Pi Pico

Enter Bootloader Mode:

  • Hold down the BOOTSEL button on your Pico.
  • While holding the button, connect the Pico to your Linux PC via USB.
  • Release the BOOTSEL button.
  • Check If the Pico Is Recognized:

Your Pico should appear as a mass storage device named RPI-RP2.

Verify using the following command:

lsblk

You should see a new device (e.g., /media/$USER/RPI-RP2 or /run/media/$USER/RPI-RP2).

Step 2: Copy the UF2 File to the Pico

cp your_firmware.uf2 /media/$USER/RPI-RP2/

Step 3: Run it

On PicoCalc, the default serial port of the Pico is the USB Type-C port, not its built-in Micro USB port.
So here is the standard running procedures:

  • Unplug the pico from Micro-USB cable
  • Plug the pico via USB Type-C
  • Press Power On on Top of the PicoCalc

If your firmware includes serial output, you can monitor it using minicom or screen:

screen /dev/ttyACM0 115200

(Replace /dev/ttyACM0 with the correct serial port for your Pico.)

The serial monitor of Arduino IDE is another great choice for PicoCalc serial output on both Linux and Windows.