commit 866e0e93b93e4b9e890850ffe1da60616abcd639
Author: zhaohe <1013909206@qq.com>
Date:   Wed Dec 29 15:46:58 2021 +0800

    first commit

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e5b08d2
--- /dev/null
+++ b/README.md
@@ -0,0 +1,7 @@
+# README
+
+```
+Usage:
+    net_tty.out /dev/ttyUSB0 115200 port
+
+```
\ No newline at end of file