diff --git a/src/main/java/com/iflytop/gd/hardware/command/handlers/HBotHandler.java b/src/main/java/com/iflytop/gd/hardware/command/handlers/HBotHandler.java
index e43c3a1..ef150b4 100644
--- a/src/main/java/com/iflytop/gd/hardware/command/handlers/HBotHandler.java
+++ b/src/main/java/com/iflytop/gd/hardware/command/handlers/HBotHandler.java
@@ -64,6 +64,8 @@ public class HBotHandler extends CommandHandler {
         StepMotorMId stepMotorMId = stepMotorMIdMap_.get(command.getDevice());
         LeisaiServoMId servoMId = leisaiServoMIdMap.get(command.getDevice());
 
+        // TODO:电机和 伺服电机的单位转换不一致
+
 
         boolean isServo = command.getDevice() != CmdDevice.gantry_z;