diff --git a/docs/doc/communication/Bluetooth.md b/docs/doc/communication/Bluetooth.md
index 9e3fba3..73a6298 100644
--- a/docs/doc/communication/Bluetooth.md
+++ b/docs/doc/communication/Bluetooth.md
@@ -1,4 +1,4 @@
-# bluetooth
+# Bluetooth
 
 ## 模块介绍
 
diff --git a/docs/doc/communication/README.md b/docs/doc/communication/README.md
index c13dfa7..1f7da4a 100644
--- a/docs/doc/communication/README.md
+++ b/docs/doc/communication/README.md
@@ -18,7 +18,7 @@
 
 - [NB-IOT](/doc/communication/NB-IOT.md)
 
-- [rs485](/doc/communication/rs485.md)
+- [RS485](/doc/communication/rs485.md)
 
 - [WiFi](/doc/communication/WiFi.md)
 
diff --git a/docs/doc/communication/rs485.md b/docs/doc/communication/rs485.md
index 5463d7a..2c0b45b 100644
--- a/docs/doc/communication/rs485.md
+++ b/docs/doc/communication/rs485.md
@@ -1 +1 @@
-# rs485
+# RS485