11.修改说明
===========

.. _修改说明-1:

修改说明
--------

+----------+----------------------------------------+--------+------+
| 时间     | 描述                                   | 作者   | 备注 |
+==========+========================================+========+======+
| 20200929 | 增加Air720U入网证书                    | 金艺   |      |
+----------+----------------------------------------+--------+------+
| 20201215 | 硬件资料-                              | 祝平军 |      |
|          | >开发板章节，原理图和pcb增加pdf,ad格式 |        |      |
+----------+----------------------------------------+--------+------+
| 20201222 | 硬件                                   | 祝平军 |      |
|          | 接口->iic章节，修改引脚错误，及网络名  |        |      |
|          | 错误                                   |        |      |
+----------+----------------------------------------+--------+------+
| 20201230 | 硬件接口->硬件接口-开                  | 祝平军 |      |
|          | 关机章节，修改备注中，复位上拉为vbat， |        |      |
+----------+----------------------------------------+--------+------+
|          |                                        |        |      |
+----------+----------------------------------------+--------+------+