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Introduction
PicoRuby documentation
introduction
picoruby_sidebar
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PicoRuby is the smallest Ruby implementation for one-chip microcontrollers.

Presentation

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Products by PicoRuby

PRK Firmware

Firmware framework for DIY keyboards.

R2P2

Microcontroller programming framework.

Tutorial of R2P2

1-1 Getting start with R2P2

  • Download the latest R2P2-*.uf2 from the releases page of the repository
  • Drag and drop it into the RPI-RP2 drive
  • Open a proper port in your terminal emulator
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1-2 R2P2 shell has some UNIX-like commands

  • Try some UNIX-like commands like ls, mkdir and touch
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1-3 R2P2 has PicoIRB

  • Open PicoIRB with irb command
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2-1 LED blinking (L-chika) with PicoRuby

  • Turn on the on-board LED using PicoIRB
  • If you use "Pico W", write led = CYW43::GPIO.new(CYW43::GPIO::LED_PIN)
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2-2 require "adc" loads ADC class

  • You can load pre-built libraries like "picoruby-adc" and use ADC class
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3-1 PicoIRB has multi-line editor!

  • That's cool, right?
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3-2 PicoRuby has Time class working with RTC in MCU

  • The clock will be persistent if you connect a battery-driven RTC module. Try it :)
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3-3 You can even use a Vim-like editor in R2P2

  • It's not for a serious usage but for demonstrating the viability of PicoRuby ;)
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3-4 You can drag and drop your Ruby script from your laptop

  • This is what you want to do in a real development
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3-5 /home/app.rb automatically starts Pi Pico

  • Now your Pi Pico is a stand-alone device
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