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

PyCon JP 2021 オンライン

Transcript

1. MicroPython × BLE ×
   
   
   
   PyCon JP
   2021
   @puhitaku
   

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2. TEPRA
   2
   

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

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4. https://twitter.com/okayan
   08
   /status/
   7
   972
   55
   664
   46
   460
   10
   89
   4
   

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5. https://twitter.com/okayan
   08
   /status/
   5
   658
   60
   495
   74
   418
   43
   22
   5
   

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

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

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

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9. TEPRA Lite LR
   30
   9
   

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10. TEPRA Lite LR
    30 

    https://www.kingjim.co.jp/products/tepra/sr
    37
    0
    .html
    10
    

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11. TEPRA Lite LR
    30
    
    
    
    
    
    11
    

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12. TEPRA Lite LR
    30
    12
    

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

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15. Switch Science Bluefruit LE Sni
    ff
    er
    15
    

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16. Wireshark
    16
    

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17. BLE
    17
    💻
    ⚡
    

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

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19. PC
    
    
    Bluetooth
    
    
    API
    
    

    
    
    Wi-Fi BLE
    
    
    🥰
    BLE (ESP
    3
    2
    )
    19
    ESPr® Developer
    32
    https://www.switch-science.com/catalog/
    3
    21
    0
    /
    

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20. MicroPython × BLE ×
    20
    

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21. MicroPython × BLE ×
    Python
    
    
    json, time, asyncio (uasyncio), zlib
    batteries included
    
    
    CPython (REPL)
    

    
    
    MicroPython machine
    

    GPIO
    MicroPython
    21
    

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22. MicroPython × BLE ×
    BLE bluetooth
    
    
    bluetooth.BLE IRQ
    
    
    API
    
    
    gattc_discover_services
    Service discovery
    prop_write_without_response
    Characteristic
    
    
    MicroPython BLE
    22
    

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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
    
    
    

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24. MicroPython × BLE ×
    0xfff2
    24
    0 5
    

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25. MicroPython × BLE × 25
    f0 5c =
    
    
    00 03 00 00 00 00 00 00 = 1
    
    
    00 03 00 00 00 00 00 00 = 2
    

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26. MicroPython × BLE ×
    f0 5c
    
    
    
    
    26
    

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27. MicroPython × BLE ×
    1
    27
    

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28. MicroPython × BLE ×
    
    

    28
    

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29. PC Wi-Fi ESP
    3
    2
    29
    💻
    ⚡
    

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30. MicroPython × BLE × 30
    0 5
    REST API
    zlib /prints POST
    

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

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

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

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34. MicroPython
    

    BLE
    

    
 

    MicroPython
    34
    

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