Pimoroni Galactic Unicorn Hello World

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Revision as of 08:36, 17 October 2023 by Mol (talk | contribs) (→‎Sound)

Introduction

583 RGB leds in 53x11 grid. Raspberry Pi Pico W (microcontroller), speaker with amplifier, two (2) I2C Stemma/qt sensor sockets (3 or 4 pin JST PH), a light sensor (phototransistor) facing front and nine (9) control buttons, a reset button, JST-PH battery connector.

Connecting

Programming

Raspberry Pi Pico can be programmed using Micropython or C/C++. This will deal only with MicroPython.

To upload your file to Pico, it need to be put into bootloader mode: hold down the bootsel button while plugging the USB cable: it should show up as a drive called RPI-RP2.

IDE's

Thonny

  1. Connect the USB cable while bootsel button is pressed: RPI-RP2 is found on device manager.
  2. Copy the pimoroni-galactic_unicorn-v1.20.6-micropython.uf2 to RPI-RP2.
  3. Start thonny; see the right down corner that correct device is connected.
  4. Program.
  5. Run/ Stop / Load.

Micropython

Some libraries are needed. Download from https://github.com/pimoroni/pimoroni-pico/releases

from picographics import PicoGraphics, DISPLAY_GALACTIC_UNICORN

Manual: PicoGraphics

from galactic import GalacticUnicorn

Manual: GalacticUnicorn


from machine import Pin, I2C

Fonts

Stationary, centred, scrolling text.

Font library

Nice 5x3 characters: https://forums.pimoroni.com/t/galactic-unicorn-small-numeric-characters/20766

Sound

Effects