Merge #273 into sdk602patch0521 from refs/changes/273/head

Merge #273 into sdk602patch0521 from refs/changes/273/head

Code review from 彭磊

* refs/changes/273/head: (3 commits squashed)

  - 优化蓝牙产测，添加ppg关闭led指令

  - Merge branch 'sdk602patch0521' of https://codeup.aliyun.com/64191456b9581d62e8f81ac0/FD230 into remotes/origin/sdk602patch0521

  - 蓝牙产测添加NTC测试指令

Signed-off-by: aliyun6865282430 <1624952103@qq.com>
Reviewed-by: snickersun@163.com <accounts_62b90f7fcf51ade33b6f628e@mail.teambition.com>
Merged-by: snickersun@163.com <accounts_62b90f7fcf51ade33b6f628e@mail.teambition.com>
link: https://codeup.aliyun.com/64191456b9581d62e8f81ac0/FD230/change/273