{ "build": { "arduino": { "ldscript": "nrf52840_s140_v7.ld" }, "core": "nRF5", "cpu": "cortex-m4", "extra_flags": "-DARDUINO_MDBT50Q_RX -DNRF52840_XXAA", "f_cpu": "64000000L", "hwids": [ ["0x239A", "0x810B"], ["0x239A", "0x010B"], ["0x239A", "0x810C"] ], "usb_product": "XIAO-BOOT", "mcu": "nrf52840", "variant": "Seeed_XIAO_nRF52840_Sense", "bsp": { "name": "adafruit" }, "softdevice": { "sd_flags": "-DS140", "sd_name": "s140", "sd_version": "7.3.0", "sd_fwid": "0x0123" }, "bootloader": { "settings_addr": "0xFF000" } }, "connectivity": ["bluetooth"], "debug": { "jlink_device": "nRF52840_xxAA", "svd_path": "nrf52840.svd" }, "frameworks": ["arduino"], "name": "Seeed Xiao BLE Sense", "upload": { "maximum_ram_size": 248832, "maximum_size": 815104, "speed": 115200, "protocol": "nrfutil", "protocols": [ "jlink", "nrfjprog", "nrfutil", "stlink", "cmsis-dap", "blackmagic" ], "use_1200bps_touch": true, "require_upload_port": true, "wait_for_upload_port": true }, "url": "https://www.seeedstudio.com/Seeed-XIAO-BLE-Sense-nRF52840-p-5253.html", "vendor": "Seeed Studio" }