040000 tree f8aa41598ec336be62e9d68da5260764c7b02a2e	arduino_101
100644 blob 146a59fe0874f64e99f5843aa8b5d8682d76c867	boards.rst
040000 tree df63c3ba71896b8fcd5f604fcc24ad736805678b	microbit
040000 tree 66ddcdd3ea6e89e23e61e07ab7315c5ecd0e59bd	nrf52
040000 tree 6ac0d7c240cccf24d905b0e2fe20333a8aee6b76	quark_se_c1000