Yukihiro "Matz" Matsumoto 0ff41e4e28 hw-gpio: add GPIO peripheral gems for embedded platforms ...

Add three new gems for GPIO pin control:
- hw-gpio: common Ruby API, C bindings, and HAL header
- hw-esp32-gpio: ESP32 HAL using ESP-IDF GPIO driver
- hw-rp2040-gpio: RP2040 HAL using Pico SDK

Co-authored-by: Claude <noreply@anthropic.com>

2026-04-23 19:25:36 +09:00

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mruby

hw-gpio: add GPIO peripheral gems for embedded platforms

2026-04-23 19:25:36 +09:00