xiao_circuitpython
*Seeduino XIAO CircuitPythonメモ [[index]] [[https://www.seeedstudio.com/xiao-series-page]] [[https://www.seeedstudio.com/Seeeduino-XIAO-Arduino-Microcontroller-SAMD21-Cortex-M0+-p-4426.html]] **はじめに XIAOの開発環境っていろいろあるけど、CircuitPythonにしてみる。 ちなみにMicroPythonもあるが、BLEやUSB使うならこっちの方がよさそう。 [[https://docs.circuitpython.org/en/latest/README.html#differences-from-micropython]] >Differences from MicroPython >CircuitPython: > >・Supports native USB on most boards and BLE otherwise, allowing file editing without special tools. >・Floats (aka decimals) are enabled for all builds. >・Error messages are translated into 10+ languages. >・Concurrency within Python is not well supported. Interrupts and threading are disabled. async/await keywords are available on some boards for cooperative multitasking. Some concurrency is achieved with native modules for tasks that require it such as audio file playback. [[https://docs.circuitpython.org/en/latest/docs/supported_ports.html]] [[https://sourcegraph.com/github.com/adafruit/circuitpython/-/tree/ports/atmel-samd/boards/seeeduino_xiao]] **やってみる [[https://wiki.seeedstudio.com/Seeeduino-XIAO-CircuitPython]] **LED 昔のサンプルコードはLEDだったんだけど、LED_INVERTEDになってた。 >led = DigitalInOut(board.LED_INVERTED) 一覧 |定義名|ピン |LED_INVERTED|PA17 |YELLOW_LED_INVERTED|PA17 |RX_LED_INVERTED|PA18 |TX_LED_INVERTED|PA19 ソースみたらこう。 MP_QSTR_除いた名前になるらしい [[https://micropython-usermod.readthedocs.io/en/latest/usermods_05.html#referring-to-user-functions]] >circuitpython\ports\atmel-samd\boards\seeeduino_xiao\pins.c(46): { MP_ROM_QSTR(MP_QSTR_LED_INVERTED), MP_ROM_PTR(&pin_PA17) }, >circuitpython\ports\atmel-samd\boards\seeeduino_xiao\pins.c(47): { MP_ROM_QSTR(MP_QSTR_YELLOW_LED_INVERTED), MP_ROM_PTR(&pin_PA17) }, >circuitpython\ports\atmel-samd\boards\seeeduino_xiao\pins.c(49): { MP_ROM_QSTR(MP_QSTR_RX_LED_INVERTED), MP_ROM_PTR(&pin_PA18) }, >circuitpython\ports\atmel-samd\boards\seeeduino_xiao\pins.c(52): { MP_ROM_QSTR(MP_QSTR_TX_LED_INVERTED), MP_ROM_PTR(&pin_PA19) }, >circuitpython\ports\atmel-samd\boards\seeeduino_xiao_kb\pins.c(46): { MP_ROM_QSTR(MP_QSTR_LED_INVERTED), MP_ROM_PTR(&pin_PA17) }, >circuitpython\ports\atmel-samd\boards\seeeduino_xiao_kb\pins.c(47): { MP_ROM_QSTR(MP_QSTR_YELLOW_LED_INVERTED), MP_ROM_PTR(&pin_PA17) }, >circuitpython\ports\atmel-samd\boards\seeeduino_xiao_kb\pins.c(49): { MP_ROM_QSTR(MP_QSTR_RX_LED_INVERTED), MP_ROM_PTR(&pin_PA18) }, >circuitpython\ports\atmel-samd\boards\seeeduino_xiao_kb\pins.c(52): { MP_ROM_QSTR(MP_QSTR_TX_LED_INVERTED), MP_ROM_PTR(&pin_PA19) }, >circuitpython\ports\espressif\boards\gravitech_cucumber_m\pins.c(9): { MP_ROM_QSTR(MP_QSTR_LED_INVERTED), MP_ROM_PTR(&pin_GPIO2) }, >circuitpython\ports\espressif\boards\gravitech_cucumber_ms\pins.c(9): { MP_ROM_QSTR(MP_QSTR_LED_INVERTED), MP_ROM_PTR(&pin_GPIO2) }, >circuitpython\ports\espressif\boards\gravitech_cucumber_r\pins.c(9): { MP_ROM_QSTR(MP_QSTR_LED_INVERTED), MP_ROM_PTR(&pin_GPIO2) }, >circuitpython\ports\espressif\boards\gravitech_cucumber_rs\pins.c(9): { MP_ROM_QSTR(MP_QSTR_LED_INVERTED), MP_ROM_PTR(&pin_GPIO2) }, **USB HIDキーボード CircuitPython 8.0.5 ライブラリをダウンロード [[https://github.com/adafruit/Adafruit_CircuitPython_Bundle/releases]] 今回はこれ adafruit-circuitpython-bundle-8.x-mpy-20230416.zip 展開したら、lib/adafruit_hid を、CIRCUITPY/libにコピー code.py ># Import the libraries >import time >import board >import usb_hid >from digitalio import DigitalInOut, Direction, Pull >from adafruit_hid.keyboard import Keyboard >from adafruit_hid.keycode import Keycode >from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS > ># configure device as keyboard >kbd = Keyboard(usb_hid.devices) >layout = KeyboardLayoutUS(kbd) > >d2 = DigitalInOut(board.D2) >d2.direction = Direction.INPUT >d2.pull = Pull.UP > ># loop forever >while True: > if not d2.value: > kbd.send(Keycode.GUI ,Keycode.L) > time.sleep(0.5) # debounce delay. tenuki end.
2026-03-24 22:53:47 32400
