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

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MicroPython × BLE × PyCon JP 2021 @puhitaku

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TEPRA 2

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

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

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

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

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

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

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TEPRA Lite LR 30 9

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

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TEPRA Lite LR 30 11

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TEPRA Lite LR 30 12

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

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Switch Science Bluefruit LE Sni ff er 15

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Wireshark 16

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BLE 17 💻 ⚡

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PC Bluetooth 2 Bluetooth Bluez Linux BT Python BLE 18 😇

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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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MicroPython × BLE × 20

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

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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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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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MicroPython × BLE × 0xfff2 24 0 5

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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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MicroPython × BLE × f0 5c 26

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MicroPython × BLE × 1 27

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MicroPython × BLE ×   28

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PC Wi-Fi ESP 3 2 29 💻 ⚡

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

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MicroPython × BLE × 31 0 5 CLI Pillow QR

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