2021.4.27 RustのLT会 Shinjuku.rs #15 @オンラインの発表資料

1. Rustॳ৺ऀ͕ArduinoΛLνΧͯ͠Έͨ
Ѩ෦ߞೋ/2021.4.27
RustͷLTձ Shinjuku.rs #15 @ΦϯϥΠϯ
1

2. • ࣗ‫঺ݾ‬հ
• ຊ೔ͷςʔϚ
• Կ‫ނ‬ɺλʔήοτ͸Arduino?
• ࢼͯ͠Έͨ͜ͱ
• ‫ײ‬૝
໨࣍
2

3. • ໊લɿѨ෦ߞೋ(͋΂ɹ͜͏͡)
• ύʔιϧςΫϊϩδʔελοϑ‫ࣜג‬ձࣾʹॴଐɻ‫ݸ‬ਓ‫ݟ‬ղɻ
• ೿‫Ͱݣ‬ҩྍ‫ثػ‬ϝʔΧʹͯब‫ۀ‬தɻ
• ૊ࠐΈιϑτ΢ΣΞ։ൃɻ
• ‫ޠݴ‬ɿC‫ޠݴ‬
• Rustྺɿࠓ೥ͷ3݄ࠒ͔Βຊࠊ͍Εֶͯश։࢝
• ϒϩάɿhttps://k-abe.hatenablog.com/
• Twitterɿ@juraruming
ࣗ‫঺ݾ‬հ

4. • RustͰArduino UNO(ͱಉ͡ϚΠίϯ)ͷLνΧɺͦͷଞपล‫ػ‬ೳͷ੍‫͕ޚ‬
Ͱ͖ͨͷͰ৘ใ‫ڞ‬༗ɻ
ຊ೔ͷςʔϚ

5. ૊ࠐΈͰRustΛࢼ͢৔߹ͷλʔήοτ‫ج‬൘ͷબ୒ࢶͷྫ
• Arduino
• ϥζύΠ
• STϚΠΫϩɹNucleoγϦʔζ ARM Cortex-MγϦʔζ
• GR-PEACH ARM Cortex-A
• micro:bit
• LEGO EV3
• GBA
• PSP
• ͦͷଞ
Կ‫ނ‬ɺλʔήοτ͸Arduino?

6. ͍Ζ͍Ζબ୒ࢶ͕͋Δ͕ArduinoΛબΜͩཧ༝͸ɾɾɾ
• ҎલArduinoΛ࢖ͬͨ͜ͱ͕͋ͬͨɻ
• Arduino UNOͰ΋ྑ͍͚Ͳ֎෦σόΠεΛ֎෇͚͢Δख͕ؒ͋Δɾɾɾɻ
• Leafonyͱ͍͏ʮ͍Ζ͍Ζࢼͤͦ͏ͳʯ‫ج‬൘͕ͨ·ͨ·ख‫ͨͬ͋ʹݩ‬ɻ
• LeafonyɾɾɾIoTΤοδσόΠεͱͯ͠ྑ͍‫͡͡ײ‬Όͳ͍͔???খͯ͘͞
֨޷͍͍ɻαϯϓϧίʔυ΋ެ։͞Ε͍ͯͨɻ͢͜͠ͷมߋͰRustͰಈ
͔ͤͦ͏ͳ‫͡ײ‬ɻ
Կ‫ނ‬ɺλʔήοτ͸Arduino?

7. ݁Ռɺ࣍ͷ͜ͱ͕֬ೝͰ͖·ͨ͠ɻ
■Leafony Basic KitʹͯʮόοςϦిѹಡΈऔΓʯαϯϓϧϓϩάϥϜΛ֬ೝͰ͖ͨɻ
• I2CϚελͰϥΠτɾϦʔυɻ
ɹI2CεϨʔϒͷADίϯόʔλ͔ΒϘλϯి஑ͷిѹΛಡΈग़ͤͨɻ
• γϦΞϧ௨৴(ૹ৴)
• LνΧ
• ms୯Ґͷ࣌ؒ଴ͪ(delay)
※Arduino UNOɺArduino MEGAͰ΋LνΧ֬ೝͰ͖·ͨ͠ɻ
Կ‫ނ‬ɺλʔήοτ͸Arduino?

8. Leafonyͱ͸?
Կ‫ނ‬ɺλʔήοτ͸Arduino?

9. Leafony Basic Kitͱ͸?
Կ‫ނ‬ɺλʔήοτ͸Arduino?

10. • ʲavr-halʳͷιʔείʔυΛར༻ͤͯ͞΋Β͍֬ೝͨ͠ɻ
ɹhttps://github.com/Rahix/avr-hal
• ࠷ॳ͸ʲThe AVR-Rust projectʳΛmacͰࢼ͕ͨ͠։ൃ‫ߏڥ؀‬ஙͰ͖ͣʹ࠳ંɻavr-
halʹҠߦͨ͠ɻ
ࢼͨ͜͠ͱ

11. • ʲavr-halʳ͸Լ‫ه‬ͷϋʔυ΢ΣΞΛαϙʔτɻ
ࢼͨ͜͠ͱ
ɾLeafony͸Arduino UNOͱಉ
͡ϚΠίϯatmega328pΛ࢖༻͠
͍ͯΔɻ
গ͠มߋͯ͠RustͰಈ͔ͤͳ͍
͔ͳͱࢥͬͨͷͰௐࠪͨ͠ɻ

12. • LeafonyͷʮόοςϦిѹಡΈऔΓʯαϯϓϧϓϩάϥϜ(Arduino IDE C
Ͱ࣮૷͞Ε͍ͯΔ)ΛRustʹॻ͖‫͑׵‬Δɻ
ɹϚΠίϯͱి‫ݯ‬ϦʔϑͷADίϯόʔλ͸I2CͰ઀ଓ͞Ε͍ͯΔɻ
ɹArduino IDE൛͸I2CͷWireϥΠϒϥϦͰ࣮૷͞Ε͍ͯΔɻ
ɹRust͸arduino_uno::I2cMasterͰI2CΛ࣮‫͢ݱ‬Δɻ
• ΫϩοΫʹґଘ͢Δॲཧ෦෼(γϦΞϧɺI2Cɺdelayؔ਺)Λ16MHz͔Β
8MHzʹมߋɻarduino UNO͸16MHz, Leafony͸8MHzͷͨΊɻ
ࢼͨ͜͠ͱ

13. • ݁Ռ
ɹavr-hal Arduino UNOͷαϯϓϧϓϩάϥϜΛLeafonyʹ߹Θͤͯগ͠ม
ߋͨ͠ͱ͜ΖɺLeafonyͷʮόοςϦిѹಡΈऔΓʯαϯϓϧϓϩάϥϜΛ
࣮ߦͰ͖ͨɻ
ࢼͨ͜͠ͱ

14. • ݁Ռ
Լਤ͸όοςϦిѹ(mV୯Ґ)ͷγϦΞϧσʔλΛද͍ࣔͯ͠Δͱ͜Ζɻ
Ϙλϯి஑ͷిѹ(໿3V)ΛಡΈग़͍ͤͯΔ໛༷ɻ
ࢼͨ͜͠ͱ

15. • ϒϩάʹগ͠ৄ͘͠ॻ͍ͨͷͰΑ͚Ε͹ࢀর͍ͩ͘͞ɻ
https://k-abe.hatenablog.com/entry/2021/04/14/125312
• ιʔείʔυ͸GitHubΛࢀরɻ
https://github.com/grace2riku/avr-hal/tree/add_leafony
ࢼͨ͜͠ͱ

16. • ҰԠɺRustͰArduinoͱಉ͡ϚΠίϯΛಈ͔ͤͨͷͰྑ͔ͬͨɻ
• Arduino IDEಉ༷ɺRustͷavr-halͰ΋ϚΠίϯͷϨδελΛҙࣝͤͣʹ
ϋʔυ΢ΣΞ੍‫͖ͨͰޚ‬ɻ
• Rustͷ‫ج‬ຊΛཧղͰ͖͍ͯͳ͍ͨΊɺ͓·͡ͳ͍ͷΑ͏ʹ‫͡ײ‬Δ‫ه‬ड़΋
͋Δɻ͜Ε͔ΒֶΜͰ͍͖͍ͨɻ
• RustͰArduinoɺબ୒ࢶͱͯ͠Ͳ͏Ͱ͔͢?
‫ײ‬૝

17. • avr-hal
https://github.com/Rahix/avr-hal
• Leafony
https://docs.leafony.com/docs/overview/
• Leafony Bacic Kit
https://docs.leafony.com/docs/products/basic/
• Leafony όοςϦిѹಡΈऔΓαϯϓϧϓϩάϥϜղઆ
https://docs.leafony.com/docs/examples/beginner/1_p/basic/read_battery/
ࢀরɾҾ༻

18. ͝ਗ਼ௌɺ͋Γ͕ͱ͏
͍͟͝·ͨ͠ɻ
ऴΘΓ