MicroPython × BLE × テプラ 〜リバースエンジニアリングを添えて〜 /micropython-ble-tepra

Transcript

1. MicroPython × BLE × PyCon JP 2021 @puhitaku

2. TEPRA 2

3. https://twitter.com/ejo 090 /status/ 425 52 334 04 306 96 448

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4. https://twitter.com/okayan 08 /status/ 7 972 55 664 46 460 10

   89 4

5. https://twitter.com/okayan 08 /status/ 5 658 60 495 74 418 43

   22 5

6. https://www.kingjim.co.jp/products/tepra/sr 37 0 .html 6

7. TEPRA Lite LR 30 TEPRA Lite LR 3 0 https://www.kingjim.co.jp/sp/lr

   3 0 / 7

8. TEPRA Lite LR 30 https://www.kingjim.co.jp/sp/lr 3 0 / 8

9. TEPRA Lite LR 30 9

10. TEPRA Lite LR 30 
 https://www.kingjim.co.jp/products/tepra/sr 37 0 .html 10

11. TEPRA Lite LR 30 11

12. TEPRA Lite LR 30 12

13. 13

14. Bluetooth Low Energy (BLE) https://www.kingjim.co.jp/sp/lr 3 0 /feature/index.html 14

15. Switch Science Bluefruit LE Sni ff er 15

16. Wireshark 16

17. BLE 17 💻 ⚡

18. PC Bluetooth 2 Bluetooth Bluez Linux BT Python BLE 18

    😇

19. PC Bluetooth API 
 Wi-Fi BLE 🥰 BLE (ESP 3

    2 ) 19 ESPr® Developer 32 https://www.switch-science.com/catalog/ 3 21 0 /

20. MicroPython × BLE × 20

21. MicroPython × BLE × Python json, time, asyncio (uasyncio), zlib

    batteries included CPython (REPL) 
 MicroPython machine 
 GPIO MicroPython 21

22. MicroPython × BLE × BLE bluetooth bluetooth.BLE IRQ API gattc_discover_services

    Service discovery prop_write_without_response Characteristic MicroPython BLE 22

23. MicroPython × BLE × 0x180f Battery Service … 0x2a19 Battery

    Level Characteristic 0xfff0 TEPRA Lite Service 0xfff1 TEPRA Lite Char. … Notify (RX) 0xfff2 TEPRA Lite Char. … Write Without Response (TX) ESP 3 2 Service Characteristic 23 Characteristic

24. MicroPython × BLE × 0xfff2 24 0 5

25. MicroPython × BLE × 25 f0 5c = 00 03

    00 00 00 00 00 00 = 1 00 03 00 00 00 00 00 00 = 2

26. MicroPython × BLE × f0 5c 26

27. MicroPython × BLE × 1 27

28. MicroPython × BLE × 
 28

29. PC Wi-Fi ESP 3 2 29 💻 ⚡

30. MicroPython × BLE × 30 0 5 REST API zlib

    /prints POST

31. MicroPython × BLE × 31 0 5 CLI Pillow QR

32. REST API https://github.com/hugokernel/micropython- nanoweb asyncio Flask API Web API nanoweb

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33. MicroPython × BLE × https://github.com/puhitaku/tepra-lite-esp32 33 GitHub

34. MicroPython 
 BLE 
 
 
 MicroPython 34

35. None