diff --git a/README.md b/README.md
index 12fac0f..dc1388a 100644
--- a/README.md
+++ b/README.md
@@ -179,9 +179,12 @@ For following prints, FDM, PLA, 0.4 nozzle, 0.2mm layer, 3 to 4 walls.
* [Nice Looking Manual Here](doc/IIDX_Pico_Manual.pdf)
-### Gamepad Test Tool
-* I created this gamepad test page using Copilot. You can use it to check if all buttons and axes are working correctly.
+### Tools I Made
+* Gamepad test - You can use it to check if all buttons and axes are working correctly.
https://whowechina.github.io/iidx_pico/Tools/gamepad_test.html
+* Command-line tool - You can access controller's built-in CLI port using this tool.
+ https://whowechina.github.io/iidx_pico/Tools/cli_tool.html
+
## CAD Source File
I'm using OnShape free subscription. It's powerful but it can't archive original designs to local, so I can only share the link here. STL/DXF/DWG files are exported from this online document.
diff --git a/README_CN.md b/README_CN.md
index f558298..ef8091a 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -181,9 +181,11 @@
* [Nice Looking Manual Here](doc/IIDX_Pico_Manual.pdf)
-### 游戏手柄测试工具
-* 我使用 Copilot 创建了这个游戏手柄测试页面。你可以用它来检查所有按钮和轴是否正常工作。
+### 我写的工具
+* 游戏手柄测试 - 你可以用它来检查所有按钮和轴是否正常工作。
https://whowechina.github.io/iidx_pico/Tools/gamepad_test.html
+* 命令行工具 - 你可以使用这个工具访问控制器内置的 CLI 端口。
+ https://whowechina.github.io/iidx_pico/Tools/cli_tool.html
## CAD 源文件
我使用的是 OnShape 的免费订阅。它很强大,但不能将原始设计存档到本地,所以我只能在这里分享链接。STL/DXF/DWG 文件是从这个在线文档导出的。
diff --git a/Tools/cli_tool.html b/Tools/cli_tool.html
new file mode 100644
index 0000000..3c150e4
--- /dev/null
+++ b/Tools/cli_tool.html
@@ -0,0 +1,676 @@
+
+
+