add default I2C

Author: ladyada

ports/atmel-samd/boards/blm_badge/pins.c

@@ -39,5 +39,7 @@ STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
 
     { MP_ROM_QSTR(MP_QSTR_L),   MP_ROM_PTR(&pin_PA03) },
     { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_PA03) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
 };
 MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);