boards/arm/reel_board/reel_board.yaml

identifier: reel_board
name: reel-board
type: mcu
arch: arm
ram: 512
flash: 1024
toolchain:
  - zephyr
  - gnuarmemb
  - xtools
supported:
  - i2c
  - spi
  - gpio
  - usb_device
  - usb_cdc
  - ble
  - pwm
  - arduino_i2c
  - arduino_spi
  - arduino_gpio