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Hitoshi Hasumi

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Funicular: A Browser App Framework Powered by PicoRuby.WASMRubyKaigi 20262026-04-22
PicoRuby.WASM runs a mruby VM with a cooperative task scheduler so Ruby’s sleep/yield work in the browser by stepping VM instructions for ~16ms then yielding…
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A Beginner's Complete Guide to Microcontroller Programming w..RubyConf TH 20232023-10-06
Walks through getting Ruby onto a microcontroller using a Raspberry Pi Pico: put the RP2P2.uf2 on the board via boot-button drag‑and‑drop, open the USB serial…
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Picoruby and PRK FirmwareRubyConf 20212021-11-08
PicoRuby is an mruby-derived interpreter and compiler that compiles keymap.rb on-device and hot-reloads it into PRK Firmware, a Ruby keyboard framework that…
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mruby/c: Running on Less Than 64KB RAM MicrocontrollerRubyConf 20192019-11-18
A one‑chip IoT sensor suite for a Japanese Sake brewery actually ships and runs Ruby bytecode on microcontrollers: mruby/c compiles mRuby bytecode into a tiny…
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