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{ "keyboard_name": "BDN9 Rev. 1", "usb": { "pid": "0x1133", "device_version": "1.0.0" }, "processor": "atmega32u4", "bootloader": "caterina", "matrix_pins": { "direct": [ ["D2", "D4", "F4"], ["D7", "B1", "B3"], ["E6", "B4", "B2"] ] } }